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Florida Bay is the bay located between the southern end of the Florida mainland (the Florida Everglades ) and the Florida Keys in the United States . It is a large, shallow estuary that while connected to the Gulf of Mexico, has limited exchange of water due to shallow mudbanks dividing the bay into many basins or lakes. The banks separate the bay into basins, each with its own unique physical characteristics.

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66-572: Duck Key is an island in Monroe County , Florida , United States , in the middle Florida Keys . It is part of the Duck Key, Florida census-designated place . The CDP also includes the neighboring island of Conch Key . The key was the site of a salt manufacturing operation in the 1820s & 1830s. Occupation of the island ceased after the Labor Day Hurricane of 1935 and did not resume until

132-555: A first language, and 17.56% spoke Spanish, 0.96% spoke French Creole (mainly Haitian Creole ), 0.74% spoke French, and 0.50% spoke Russian as their primary language. In total, 22.43% of the population spoke a main language other than English. Monroe County cultural organizations include the Key West Literary Seminar , The Studios of Key West , the Red Barn Theatre, Key West Symphony, Sculpture Key West, Fantasy Fest ,

198-399: A household in the county was $ 42,283, and the median income for a family was $ 50,734. Males had a median income of $ 31,266 versus $ 25,709 for females. The per capita income for the county was $ 26,102. About 6.80% of families and 10.20% of the population were below the poverty line , including 11.80% of those under age 18 and 8.80% of those age 65 or over. As of 2010, 77.57% spoke English as

264-519: A layer of grey to black calcium carbonate mud, rich in hydrogen sulfide , formed on the bottom. The mud layer is thicker on islands covered by mangrovess , and in banks connecting the islands. Peat and caliche remnants from the Everglades tree islands remain under the islands and banks. As the rising sea level flooded the area that is now Florida Bay between 3,000 and 5,000 years ago, peat deposits from tree islands, shore levees , and irregularities in

330-454: A line drawn from Long Key to Cape Sable on the mainland, which is very close to the boundary line of Everglades National Park. The northeastern edge of Florida Bay is at Jewfish Creek in Key Largo . Blackwater Sound, southwest of Jewfish Creek, is generally considered part of Florida Bay; Barnes Sound , on the other side of jewfish Creek, is not. Barnes Sound is generally considered part of

396-672: A numbered designation and is now managed by the National Park Service. Between the south coast of Florida's mainland and the Florida Keys is Florida Bay , which is encompassed by the Everglades National Park and contains numerous islets or keys. The county is coterminous with the Key West-Key Largo, Florida Micropolitan Statistical Area (μSA), with Key Largo and Key West designated as principal cities . The μSA

462-476: A rate of 20 centimetres (7.9 in) vertically and 2 to 3 metres (6 ft 7 in to 9 ft 10 in) laterally over five years, while the leeward (west) side is growing at a rate of 10 centimetres (3.9 in) vertically and 10 to 20 metres (33 to 66 ft) laterally 0ver the same five years. Mud mounds are made up of facies , thin layers of different types of rock. The lowest facies of Upper Cross Bank, 15 to 25 centimetres (5.9 to 9.8 in) thick,

528-425: A reduction in the amount of vegetation for a few years indicated a sharp increase in salinity. A second core from Russell Bank, also in the central part of the bay, goes back to about 1876. Until about 1884, salinity at the location was greater than 25 ppt. From 1884 to about 1900 salinity was below 25 ppt, and below 18 ppt at times. From about 1900 to about 1910 salinity rose above 25 ppt. From 1910 to 1940, salinity

594-600: A result, seasons during which algal blooms flourish cause a temporary loss in wildlife. Spotted seatrout populations in the coasted Everglades are declining. As the second most commonly caught species of fish in the Florida Bay, spotted seatrout comprise a large portion of the fishing industry and are integral to the ecosystem as well as surrounding economy. Water temperature of less than 80 °F (27 °C) and salinity levels below 37.5 parts per thousand (ppt) are ideal for seatrout spawning; however, water management stations in

660-440: A result. Then, following the 2015 drought, extreme temperatures and heightened salinity reduced the amount of oxygen that could remain dissolved in the water, causing periods of anoxia during nighttime and thereby damaging the health of the turtlegrass in the bay. During the summer and fall of 2015, approximately 40,000 acres of seagrass died. Cyanobacterial harmful algae blooms (also known as blue-green algae) have flourished in

726-488: A series of ecological changes beginning in the late 1980s that have severely altered the ecosystem. Originally, clean freshwater flowed south through the state into the Florida Bay. To support the state's agricultural water needs, namely for sugar cultivation, the water was rerouted and no longer flows into the Bay. The flow of fresh water is believed to have caused environmental issues and loss of native wildlife. The rerouting of

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792-777: Is a basal packstone , which is also found widely on the bottom of basins in the bay. The packstone resembles stone that commonly forms on limestone at the bottom of lakes. The presence of remnants of the algae Halimeda in the packstone may indicate that it formed when the bay was more open. Mud mounds appear to be migrating over the basal packstone in the basins. The basal packstone in the basins has also been reworked by hurricanes. The bay's many basins that are broken up by banks serve as plentiful fishing grounds for snook ( Centropomus undecimalis ), redfish ( Sciaenops ocellatus ), spotted seatrout ( Cynoscion nebulosus) , tarpon ( Megaflops atlanticus), bonefish ( Albula vulpes) , and permit ( Trichinous falcatus) , among others. The bay

858-575: Is also possessor of this Key." Hawk's Cay Resort is currently located here, and the island is sometimes known by that name. Noted Michigan Senate leader, Emil Lockwood , retired in Duck Key, where he served in many civic and political capacities until his death in 2002. Duck Key is located oceanside of U.S. 1 (or the Overseas Highway ), at approximately mile marker 61, between Conch Key and Grassy Key . Monroe County, Florida Monroe County

924-547: Is home to a large LGBT community, particularly in Key West . Due to the influence of this community, Monroe County was the only county in Florida to reject 2008 Florida Amendment 2 , which banned same-sex marriage and civil unions in the state. The amendment passed in the state with 60% of the vote. Monroe County is politically divided by geography, with Key West voting reliably Democratic, Stock Island being politically variable, and

990-499: Is home to many species of wading birds. Most notably, Roseate spoonbills ( Platalea ajaja ), Reddish egrets ( Egretta rufescens ), and Great White Herons (A rdea herodias occidentalis ) have unique subpopulations that are largely restricted to Florida Bay. Other bird species include Bald eagles , seagulls , pelicans , sandpipers , cormorants , ospreys , and flamingos . Bay land animals include raccoons , opossums , bobcats , and fox squirrels . Florida Bay has undergone

1056-484: Is served by the Miami-Dade County subregional library of Florida Bureau of Braille and Talking Books Library. 54% of the people in the county work in the tourist industry. In 2016, tourism brought $ 2.7 billion to the county. 25°07′N 81°09′W  /  25.12°N 81.15°W  / 25.12; -81.15 Florida Bay Encompassing roughly one-third of Everglades National Park , Florida Bay

1122-911: Is the primary college education provider with main campus in Key West, Florida. FKCC also operates two additional campuses in the Florida Keys; one in Marathon and another in Key Largo. Like much of the Solid South, in the first two-thirds of the 20th century, Monroe was a solidly Democratic county, supporting landslide losers like James M. Cox and John W. Davis . However, unlike most Southern Democrats, Monroe County voters tended to be far more liberal on social issues such as civil rights and later gay rights, voting powerfully for Lyndon B. Johnson in 1964 and even supporting Hubert Humphrey in 1968, one of only three counties to do so. Despite this, Richard Nixon did easily carry

1188-600: Is the southernmost county of the state of Florida . As of the 2020 census , the population was 82,874. Its county seat is Key West . Monroe County includes the islands of the Florida Keys and comprises the Key West-Key Largo Micropolitan Statistical Area . Over 99.9% of the county's population lives on the Florida Keys. The mainland, which is part of the Everglades , comprises 87% of

1254-408: Is variously stated to be 800 square miles (2,100 km ), or 850 square miles (2,200 km ), or 1,000 square miles (2,600 km ). The bay has been described as an inner continental shelf lagoon. The northern edge of the bay is formed by the Florida mainland. The eastern and southern edge of the bay is defined by the Florida Keys, with only a few natural passages between islands connecting to

1320-424: Is virtually uninhabited. This area has 87.4 percent of the county's land area (859.6 out of 983 sq mi (2,546 km )), but it had only 0.022 percent of the county's population (18 out of 82,170) as of the 2021 American Community Survey. The Census Bureau defines this area as Census Tract 9800 of Monroe County, Florida. In mainland Monroe, the only three populated places appearing on detailed maps and in

1386-671: Is water. It is the largest county in Florida by total area. More than 99.9 percent of the Monroe County population lives in the island chain known as the Florida Keys . Two thirds of the large area in what local residents call "mainland Monroe" is uninhabited by virtue of being part of the Everglades National Park , and the remainder by the Big Cypress National Preserve in the northeastern interior. The area, officially named Cape Sable Census County Division ,

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1452-598: The Biscayne Bay system. The bay consists of more than 50 shallow (one to three meters deep) basins or lakes separated by mud banks and mangrove islands. Such basins include: Little Blackwater Sound, Blackwater Sound, Tarpon Basin, Buttonwood Sound, Duck Key Basin, Eagle Key Basin, Madeira Bay, Calusa Key Basin, Crane Key Basin, Rankin Lake, Whipray Basin, Twin Key Basin, Rabbit Key Basin, and Johnson Key Basin. Water flows between

1518-570: The USGS geographic name database are Flamingo , Pinecrest , (not to be confused with much larger Pinecrest of neighboring Miami-Dade County ), and Trail City . Flamingo, on the south coast and at the end of State Road 9336 (Flamingo Lodge Highway), is the location of the Flamingo Lodge and the Flamingo Ranger Station (with Visitor Center & Marina). 7 mi (11 km) northeast on

1584-424: The neurotoxin beta-N-methylamino-l-alanine (BMAA) that has been implicated as a significant environmental risk in the development of neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis (ALS). The cyanobacteria has also been linked to liver cancer, chronic fatigue illness, skin rashes, abdominal cramps, nausea, diarrhea and vomiting. The 2002 algal bloom in

1650-422: The paleontology of biota in cores from bay muds in Florida Bay have found that historically the salinity of water in Florida Bay has been primarily dependent on rainfall rather than flow from the Everglades. Salinity partially controls the occurrence of biota in the bay. The particular species of foraminifera , molluscs , algae , and seagrasses present in the waters of a locality in Florida Bay depend on

1716-714: The Arts Corporation. The name was changed to the Florida Keys Council of the Arts in 2001. Today the organization is the liaison among cultural organizations, all levels of government and the private sector in encouraging and promoting the arts throughout Monroe County. The council endeavors to make the arts a part of the fabric of daily life. From its inception through fiscal year end 2006, FKCA has awarded $ 433,916 in privately raised funds and grants to literary, visual and performing artists and cultural organizations. Add to that sum

1782-511: The Arts, a non-profit, 501 (c) (3) corporation in a public-private partnership with local county government since 1997 serves 76,329 local residents and three million visitors annually. A ten-member board of directors guides the council, assisted by three alternate directors, two directors Emeritus and twenty-five advisory board members. The Monroe County School District serves the entire county, as well as several private schools for primary and secondary education. Florida Keys Community College

1848-587: The Atlantic Ocean. The western edge of the bay is defined by the westernmost mud banks of the bay. Nearly all of Florida Bay is included in Everglades National Park . The southern edge, along the Florida Keys, is in the Florida Keys National Marine Sanctuary . While there is no sharp boundary between Florida Bay and the Gulf of Mexico, the westernmost edge of Florida Bay can be approximated by

1914-566: The C-111 South Dade, Modified Water Deliveries, and C-111 Spreader Canal Western Project from the Comprehensive Everglades Restoration Plan (CERP). These projects seek to distribute more freshwater into the sloughs but do not deliver additional water to the bay. The U.S. Atlantic Intracoastal Waterway goes through Florida Bay, generally following the southern boundary of the Everglades National Park. Florida Bay

1980-649: The Cultural Umbrella event funding, the South Florida Cultural Consortium Visual & Media Artists Fellowships and The Art in Public Places commissions, and the total distributed in the Keys cultural community through FKCA's efforts come to $ 2.5 million to date. The annual economic impact of the non-profit cultural community in the Keys is estimated at over $ 22 million. The Florida Keys Council of

2046-451: The Everglades and Florida Bay reported salinity levels of 64.4 ppt in July 2015 and recorded water temperatures of up to 92 °F (33 °C). These environmental conditions are far from ideal for the seatrout and add additional difficulties for the survival of juveniles as well as important prey such as larval shrimp and small fish. The bay is an economic and environmental asset. As of 2017 ,

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2112-598: The Florida Keys, and 35 metres (115 ft) at Key West, and is underlain by the Fort Thompson Formation . The Miami Limestone of Florida Bay formed during the Sangamon interglacial between the most recent glacial period, the Wisconsin , and the preceding Illinoian , centered on about 125,000 years ago. The sea level stood higher then than at present, covering much of what is now southern Florida. A coral reef grew on

2178-429: The Monroe County community, including job finding tools. There is a program that preserves the history of the Keys for use by customers. In 2010 the library worked to digitize historical photographs of the Keys. Annual visitors cards can be purchased for $ 30. The library provides access to PCs with internet and word processing capabilities. The library also provides free Wi-Fi for all. The Monroe County Public Library

2244-533: The San Carlos Institute, Hemingway House and Museum , Customs House Museum , and Key West Art and Historical Society. The Florida Keys Council for the Arts is the primary cultural umbrella for the Florida Keys, and serves the population from Key Largo to Key West . A non-profit local arts agency, it makes grants, operates the Monroe County Art in Public Places program, sponsors seminars, and manages

2310-426: The baffling of water movement and binding of sediment by seagrasses. Mud banks in the central part of the bay tend to run in a northwest to southeast direction, corresponding to the direction of approach of cold fronts across the bay. The mud bank called Upper Cross Bank is 4 kilometres (2.5 mi) long and 400 to 700 metres (1,300 to 2,300 ft) wide. Upper Cross Bank is eroding on the windward (east) side at

2376-425: The basins in narrow channels and over the mud banks. The bay is open to the Gulf of Mexico to the west, but connection to the Atlantic Ocean to the east is restricted to narrow channels between the Florida Keys. The average tidal range along the western edge of the bay is 1 to 1.5 meters, but the tidal range diminishes quickly eastward in the bay due to the restricted flow of water between basins. Fresh water flow into

2442-471: The bay 30 to 40 times each year between November and April, rarely lowering the temperature in parts of the bay to below 13 °C (55 °F). Tides in Florida Bay are semi-diurnal , with a range of 60 centimetres (24 in) on the Atlantic side of connecting creeks in the Florida Keys and at Cape Sable. Tidal ranges are less than 15 centimetres (5.9 in) behind the first line of mud banks and absent in

2508-496: The bay due to a variety of environmental stressors: Agricultural fertilizer run-off increases nutrients in the delicately balanced environment and the excess increases the bacteria's rate of growth; The newly hyper-saline environment provides an ideal breeding ground for cyanobacteria; Rafts of dead seagrass floating on the surface of the water as well as decaying on the bay bottom leads to anoxia and in turn, algal blooms. Blue-green algae causes numerous severe health consequences for

2574-424: The bay for mud mounds to acquire sediment, and have grown together to form large structures, while mounds in the central past of the bay can grow only by the movement of sediment from the borroms of basins onto the mounds. Mounds in the inner part of the bay are smaller, and grow slowly because of low production rates of carbonate. The growth and development of mud banks is controlled by biological processes, including

2640-499: The bay is restricted to Taylor Slough and Trout Creek in the northeast corner of the bay, and is only 10% of the freshwater supply to the bay (rainfall provides the rest of the fresh water). Due to the poor circulation of water within the bay, salinity increases rapidly away from the margins of the bay, except for the northeast part of the bay where it receives fresh water from rivers. Water temperature ranges from 15 to 40 °C (59 to 104 °F) in interior bays. Cold fronts cross

2706-416: The bedrock surface served as nuclei for mud banks. The mud mounds (islands and banks) of Florida Bay, which divide the bay into many basins or lakes, are subject to various processes that degrade, move, and built the mounds. These processes are dependent on the production of carbonate , which occurs at different rates across the bay. Carbonate is produced at high enough rates in the more open (western) part of

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2772-481: The census of 2000, there were 79,589 people, 35,086 households, and 20,384 families living in the county. The population density was 80 people per square mile (31 people/km ). There were 51,617 housing units at an average density of 52 per square mile (20/km ). The racial makeup of the county was 90.65% White, 4.77% Black or African American, 0.38% Native American, 0.83% Asian, 0.04% Pacific Islander, 1.55% from other races, and 1.78% from two or more races. 15.77% of

2838-604: The central portion of the Florida Bay was associated with high concentrations of dissolved organic nitrogen and organic phosphorus, whereas the eastern bay regions bloom was associated with high concentration of inorganic nutrients. By the mid 1930s, the three main species of wading birds in the bay (Roseate spoonbills, Reddish egrets, Great herons) were driven to near extinction by human harvesting for food and feathers. The cyanobacteria create an oxygen-free environment teaming with toxic gases, creating an unsuitable living environment for many marine and terrestrial animal species. As

2904-407: The continued rise of the sea level flooded the gently sloping southernmost part of the Everglades to form Florida Bay. There are tree islands throughout the Everglades, clusters of trees growing on slight elevations. Tree islands accumulate plant litter which becomes peat , which in turn facilitates the creation of caliche , a dense limestone crust on the limestone bedrock. As the bay flooded,

2970-561: The county in his 1972 landslide, becoming the first Republican winner since 1888 and taking over 70% of the vote. Since the 1970s, Monroe has been a competitive swing county in presidential elections. Although Monroe County has voted mostly for the Democratic candidate since 1992 , it is a competitive county in presidential elections; it was won by the Democratic Party by margins of 5% in 2008 and 0.5% in 2004 and 2012 . Barack Obama

3036-504: The county's land area and is virtually uninhabited with only 17 people recorded in the 2020 census. Monroe County was created in 1823. It was named for James Monroe , the fifth president of the United States from 1817 to 1825. According to the U.S. Census Bureau , the county has a total area of 3,738 square miles (9,680 km ), of which 983 square miles (2,550 km ) (26.3%) is land and 2,754 square miles (7,130 km ) (73.7%)

3102-436: The county. As of the census of 2010, there were 73,090 people, 32,629 households, and 18,219 families living in the county. The racial makeup of the county was 89.5% White (71.3% Non-Hispanic White), 5.7% Black or African American , 0.4% Native American , 1.1% Asian , 0.1% Pacific Islander , 1.4% from other races , and 1.8% from two or more races. 20.6% of the population were Hispanic or Latino of any race. As of

3168-507: The eastern edge of the Florida platform, while the shallow, protected waters west of the reef formed oolites or hosted large fields of bryozoans . Throughout the Wisconsin glaciation the sea level was much lower than today and the area that is now Florida Bay was dry land. As the glaciation ended with the Pleistocene period, sea level rise rapidly, only slowing down about 7,000 years ago as

3234-418: The flow of freshwater to the Bay coupled with periods of drought have caused massive seagrass die-offs. The first major die-off occurred from 1987 to 1991 as thousands of hectares of turtlegrass beds ( Thalassia testudinum ) were devastated by high levels of toxic dissolved sulfide. 10,000 acres died in the central and western bay, and almost 60,000 additional acres suffered reduced productivity and biomass as

3300-502: The foraminifera and mollusc species present changed, and vegetation almost completely disappeared from the bottom, indicating a rise in salinity to above 25 ppt. Those conditions continued until about 1910, when the pre-1840 conditions returned, with relatively dense vegetation on the bay floor. The bay floor remains covered with vegetation, but variations in the foraminifera and mollusc species present indicate rapid oscillations in salinity levels since 1940. Around 1970, changes in species and

3366-619: The highway is the West Lake Trail (station). Pinecrest, located in the northern interior of the county (in the Big Cypress National Preserve) on Loop Road (given that name since it forms a loop with U.S. Highway 41 further north), hosts the Loop Road Education Center. Trail City is 4 mi (6 km) west of Pinecrest on Loop Road. Loop Road can be found on most maps as CR 94, although the roadway no longer has

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3432-406: The key was connected to the highway by a causeway in 1953. J.W. Norie, in his Piloting Directions for the Gulf of Florida, The Bahama Bank & Islands (1828) states: "Duck Key - Some two miles (3 km) long, low, rocky, & covered with mangroves; some small patches of good land with a little timber. This island formerly saltworks but they were transferred latterly to Key West, owned by Mr. Howe, who

3498-565: The marine ecosystem as well surrounding human populations. Blooms result in reduced dissolved oxygen concentrations, alterations in aquatic food webs, algal scum lining the shores, the production of compounds that cause distasteful drinking water and fish flesh, and the production of toxins severe enough to poison aquatic as well as terrestrial organisms. Blooms have been reported throughout the continental United States, and resulting cyanotoxins have been associated with human and animal illness and death in at least 43 states. Most cyanobacteria produce

3564-419: The northeast corner of the bay, and slopes to 2 to 3 metres (6 ft 7 in to 9 ft 10 in) below sea level in the southwest. Isolated high spots occur at East Key, Arsnicker Key , and Lignumvitae Key , which are underlain by patches of Pleistocene coral. The Miami Limestone under Florida Bay ranges in thickness from about 3 metres (9.8 ft) at Cape Sable to up to 12 metres (39 ft) along

3630-403: The northeast corner of the bay. Due to the poor circulation of water within the bay, salinity increases rapidly away from the margins of the bay, except for the northeast part of the bay where it receives fresh water from rivers. Salinity is 30% to 40% near the open waters of the continental shelf, while salinity levels range from 4% to 70% in the northeast corner of the bay. Examination of

3696-523: The on-line cultural calendar for the region. It also manages the county's Tourism Development Council arts marketing grants and serves as a leading advocate for cultural tourism in lower Florida. In 1998, the Florida Keys Council of the Arts was designated by the Board of Monroe County Commissioners as the area's Local Arts Agency as provided by Florida Statute 286.011. Established in 1997 as the Monroe Council of

3762-515: The population were Hispanic or Latino of any race. In 2005 Monroe County had a population that was 75.1% non-Hispanic white, 17.7% Latino, 5.4% African-American and 1.1% Asian. In 2000 there were 35,086 households, out of which 20.80% had children under the age of 18 living with them, 46.80% were married couples living together, 7.30% had a female householder with no husband present, and 41.90% were non-families. 28.80% of all households were made up of individuals, and 8.20% had someone living alone who

3828-409: The recreational fishing industry in Florida Bay had an estimated value of $ 7.1 billion, and generated $ 73 million in federal, state and local taxes annually, while the bay's commercial fishing industry had an estimated value of $ 400 million, and generated $ 3 million in taxes. Various projects are funded by the government in an attempt to manage the hydrology issues present in the Florida Bay, including

3894-574: The rest of the archipelago voting reliably Republican. The western part of Key West is more strongly Democratic than the eastern part of the island. On July 17, 2014, a county court judge ruled the state's ban on same sex marriage unconstitutional, ordering the county clerk of court to issue marriage licenses on July 22, 2014. The Monroe County Public Library system serves residents of the Florida Keys in five locations: Key West , Big Pine , Marathon , Key Largo , and Islamorada . The Monroe County Public Library provides various programs and services to

3960-445: The salinity. Analysis of core samples extracted from mud banks have provided a record of past salinity levels in a few parts of the bay, going back about two centuries in one case. At a site called Bob Allen in the central part of the bay, sparse seagrass cover was present from the bottom of the core, and the species present indicated a salinity in 18 to 25 parts-per-thousand (ppt) range, from about 1810, until about i840. Around 1840,

4026-453: The sea level reached about 8 metres (26 ft) below the late 20th century level. Sea level continued to rise thereafter at an average rate of about 11 centimetres (4.3 in) per century. During the last 6,000 to 7,000 years a wet climate allowed sawgrass -dominated wetlands resembling the Evereglades to develop on the land that is now under Florida Bay. Between 3,000 and 5,000 years ago,

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4092-512: The semi-enclosed basins in north-central Florida Bay. Without the freshwater, the water has become stagnant and salty with excess nitrogen from the fertilizer. This hyper-salinity contributes to the massive seagrass die-offs and algal blooms, and kills submerged aquatic vegetation. Florida Bay is underlain by a flat oolitic limestone bedrock, the Miami Limestone . The top of the bedrock is about 1 metre (3 ft 3 in) below sea level in

4158-459: Was 65 years of age or older. The average household size was 2.23 and the average family size was 2.73. In the county, the population was spread out, with 17.10% under the age of 18, 6.30% from 18 to 24, 31.10% from 25 to 44, 30.90% from 45 to 64, and 14.60% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 113.90 males. For every 100 females age 18 and over, there were 114.80 males. The median income for

4224-546: Was between 18 and 25 ppt. Salinity rose to above 25 ppt around 1940, and stayed there until about 1960, when it fell to between 15 and 25 ppt until 1980. As at the Bob Allen site, there was a brief event around 1970 that severely disrupted the presence of various species at Russell Bank. Around 1980, salinity again rose above 25 ppt. The 2015 drought period of low precipitation combined with high temperatures and calm winds that produced rapid evaporation caused salinity to increase in

4290-622: Was first defined in 2003 as the Key West-Marathon, Florida Micropolitan Statistical Area. The name was changed to Key West, Florida Micropolitan Statistical Area in 2006, and to Key West-Key Largo, Florida Micropolitan Statistical Area in 2023. The μSA is part of the Miami-Port Saint Lucie-Fort Lauderdale Combined Statistical Area . As of the 2020 United States census , there were 82,874 people, 32,839 households, and 18,586 families residing in

4356-423: Was the first candidate for president to win a majority, 51.7%, of the vote since George H. W. Bush 's national 7.7% victory in 1988 . In 2016, Donald Trump became the first Republican to carry the county in almost three decades, winning a majority and winning it by an even larger margin than Obama had won it by in 2008. In 2020, he won it by a still wider margin, and in 2024 he won by double digits. Monroe County

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