A census-designated place ( CDP ) is a concentration of population defined by the United States Census Bureau for statistical purposes only.
63-566: Penngrove is a census-designated place (CDP) in Sonoma County , California , United States, situated between the cities of Petaluma and Cotati , at the foot of the western flank of Sonoma Mountain . It is part of the North Bay subregion of the San Francisco Bay Area . The population was 2,522 at the 2010 census . The area is the site of a historic grove called Penn's Grove; it
126-424: A CDP name "be one that is recognized and used in daily communication by the residents of the community" (not "a name developed solely for planning or other purposes") and recommend that a CDP's boundaries be mapped based on the geographic extent associated with inhabitants' regular use of the named place. There is no provision, however, that this name recognition be unanimous for all residents, or that all residents use
189-516: A graduate of Stanford Law School , took over the ranch and developed a seed growing business, the Rohnert Seed Farm, which became a major horticultural success for the county. In 1956, only four adults resided within the district boundaries. In 1956 and 1957, with the U.S. Route 101 Freeway recently completed at the Cotati bypass, Rohnert Park began to be laid out and built as a planned city . In
252-632: A greater than 1.5-mile (2.4 km) radius and could be heard frequently through the hot, dry summer months. This system was replaced by pagers in the 1990s, although the siren remains perched on top of the firehouse. Currently, the Penngrove Firehouse is part of the Rancho Adobe Fire District, along with Cotati and other surrounding communities. "During World War I, a group of Penngrove ladies met in Evart's Hall to do Red Cross work. After
315-757: A mild Mediterranean climate. According to the United States Census Bureau , the CDP covers an area of 4 square miles (10.4 km), all of it land. The 2010 United States Census reported that Penngrove had a population of 2,522. The population density was 626.7 inhabitants per square mile (242.0/km). The racial makeup of Penngrove was 2,212 (87.7%) White , 19 (0.8%) African American , 24 (1.0%) Native American , 54 (2.1%) Asian , 2 (0.1%) Pacific Islander , 112 (4.4%) from other races , and 99 (3.9%) from two or more races. Hispanic or Latino of any race were 292 persons (11.6%). The Census reported that 99.6% of
378-594: A political party. Rohnert Park is patrolled by the Rohnert Park Department of Public Safety, established in 1962, that operates as an integrated fire and police department. This is one of only two cities operating Departments of Public Safety in California. On April 29, 1997, Kuanchung Kao was waving a wooden stick in the street in front of his driveway. When some neighbors called 911, two officers, Jack Shields and Mike Lynch, responded. Shields shot Kao once in
441-455: A population of at least 10,000. For the 1970 Census , the population threshold for "unincorporated places" in urbanized areas was reduced to 5,000. For the 1980 Census , the designation was changed to "census designated places" and the designation was made available for places inside urbanized areas in New England. For the 1990 Census , the population threshold for CDPs in urbanized areas
504-429: A settlement of $ 1 million in 2001. On July 29, 2015, Rohnert Park Public Safety Officer Dave Rodriguez drew his sidearm during an encounter with city resident, while the resident was hitching his boat trailer to his vehicle. The resident recorded the incident and posted it on YouTube . Rodriguez was placed on administrative leave while the city conducted an internal investigation into the incident. In August 2015,
567-456: A stage in 2006. The 1926 school building is now primarily used for offices and the school library. "The Post Office at Penn's Grove was established on October 30, 1882. A series of name changes occurred because of mail mix-ups with Penn's Grove, New Jersey and Pine Grove (later renamed Sebastopol). In May 1895 the Petaluma paper reported: 'The Penngrove Post Office has had its name changed again and
630-624: A summer election in 1962, Rohnert Park was incorporated , comprising 1,325 acres (5.36 km ), housing an estimated 2,775 persons. It was the first town to incorporate in Sonoma County since 1905. The neighboring town of Cotati, California , voted to incorporate the following year. Sonoma Mountain Village Rohnert Park is a 200-acre (0.81 km ), solar-powered, zero-waste community currently under development. The Graton Resort & Casino opened on November 5, 2013. According to
693-586: Is a city in Sonoma County, California , United States, located approximately 50 miles (80 km) north of San Francisco. The population at the 2020 United States Census was 44,390. It is an early planned city and is the sister city of Hashimoto in Japan. Sonoma State University , part of the California State University system, is located nearby. Originally home of the Coast Miwok native people,
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#1732877235711756-718: Is in the 3rd Senate District , represented by Democrat Bill Dodd , and in the 4th Assembly District , represented by Democrat Cecilia Aguiar-Curry . In the United States House of Representatives , Rohnert Park is part of California's 4th congressional district , represented by Democrat Mike Thompson . According to the California Secretary of State , as of February 10, 2019, Rohnert Park has 22,583 registered voters. Of those, 11,010 (48.8%) are registered Democrats , 4,051 (17.9%) are registered Republicans , and 6,234 (27.6%) have declined to state
819-671: Is now officially known by its former and best known title, Penn's Grove.' In 1908 the name was changed back to Penngrove and has remained so since" (Harris 1980). The first Post Office was located in the Edwards Building and was then moved into the Terribilini Building on the East side of Main Street. It was then moved next to Penngrove Market and a new structure for the Post Office was built in
882-643: The 1890 Census , in which the Census mixed unincorporated places with incorporated places in its products with "town" or "village" as its label. This made it confusing to determine which of the "towns" were or were not incorporated. The 1900 through 1930 Censuses did not report data for unincorporated places. For the 1940 Census , the Census Bureau compiled a separate report of unofficial, unincorporated communities of 500 or more people. The Census Bureau officially defined this category as "unincorporated places" in
945-455: The 1950 Census and used that term through the 1970 Census. For the 1950 Census, these types of places were identified only outside " urbanized areas ". In 1960 , the Census Bureau also identified unincorporated places inside urbanized areas (except in New England , whose political geography is based on the New England town , and is distinctly different from other areas of the U.S.), but with
1008-691: The Mexican government granted Rancho Cotate to Captain Juan Castaneda in July 1844 for his military services in the region. The grant encompassed present-day Penngrove , Cotati and Rohnert Park. "Cotate Rancho is a part of the Vallejo Township which is the plain between Sonoma Mountain and Petaluma Creek San Pablo Bay , and an east and west line dividing the tract from Santa Rosa Township." In 1849, Dr. Thomas S. Page, of Cotati, bought Rancho Cotate. Over time,
1071-403: The United States Census Bureau , Rohnert Park has a total area of 7.0 square miles (18 km ), 99.93% of it land and 0.07% of it water. The city neighborhoods east of Highway 101 are organized into sections, generally designated by the letters A–H, J-M, R, S, and W. In most cases, the names of streets and parks begin with the letter of the section they are in. K Section is also referred to as
1134-458: The "University District" and is the residential development of the city's University Specific Plan Area; W Section is also referred to as "Willowglen" and is the residential development of the city's Southeast Specific Plan Area. There is a small reservoir called Roberts Lake at the north end of the city and a number of creeks. Important creeks include the Laguna de Santa Rosa (which forms part of
1197-479: The 1980s on Main Street across from Penngrove Market. At the turn of the century, three fire chemical carts served as Penngrove's fire protection. The foundation of Firehouse #1 can be found between Penngrove Church and the Old Eagle School lot on Oak Street. "The fire department was established in the fall of 1928. In 1929 the first fire engine was put into service" (Harris 1980). In 1938, the art deco fire house
1260-464: The CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, edge cities , colonias located along the Mexico–United States border , and unincorporated resort and retirement communities and their environs. The boundaries of any CDP may change from decade to decade, and
1323-419: The Census Bureau considers some towns in New England states, New Jersey and New York as well as townships in some other states as MCDs, even though they are incorporated municipalities in those states. In such states, CDPs may be defined within such towns or spanning the boundaries of multiple towns. There are a number of reasons for the CDP designation: Rohnert Park, California Rohnert Park
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#17328772357111386-478: The Census Bureau may de-establish a CDP after a period of study, then re-establish it some decades later. Most unincorporated areas within the United States are not and have not been included in any CDP. The boundaries of a CDP have no legal status and may not always correspond with the local understanding of the area or community with the same name. However, criteria established for the 2010 census require that
1449-592: The Community Center and a small building in Penngrove Park. In 1926 a beautiful mission-style school house was built and named Penngrove School, Eagle District. Penngrove School joined the Petaluma City School District in 1962. In 1963, the present multi-purpose room was constructed and newer wings were developed between it and the older portion of the school. The multi-purpose room was expanded with
1512-723: The Penngrove area were David Wharff, W.J. Hardin, and J.M. Palmer, who arrived in 1852. In October 1870, the San Francisco and North Pacific Railroad completed the first railroad from Petaluma to Santa Rosa, running through Penngrove. Every summer on the Sunday closest to July 4, Penngrove celebrates the 4th of July with a parade sponsored by the Penngrove Social Firemen. On Saturday at the Penngrove Fire Station, located at
1575-628: The Rohnert Park City Council voted to transition from at-large elections to a district based system in which voters elect one councilmember to represent each district. Any registered voter who resides within Rohnert Park is eligible to run for City Council in the district in which they live. Rohnert Park is split between Sonoma County's 2nd and 3rd supervisorial districts. In the California State Legislature , Rohnert Park
1638-497: The Rohnert Park area. Research is ongoing at the nearby Fairfield Osborn Preserve . The Rodgers Creek Fault is an active fault influencing earthquake activity in the Rohnert Park area. The city also experiences earthquakes from the San Andreas Fault . At the 2010 census Rohnert Park had a population of 40,971. The population density was 5,846.8 inhabitants per square mile (2,257.5/km ). The racial makeup of Rohnert Park
1701-731: The Rohnert Park police, including the officers named in the lawsuit. The police department has since ceased most of its seizure efforts. In 2020, the city agreed to a $ 2 Million settlement with the family of Branch Wroth, who died in police custody in 2017, after a $ 4 Million judgment was vacated on appeal. Rohnert Park is served by a station on the Sonoma–Marin Area Rail Transit commuter rail line since it became operational on August 25, 2017. Sonoma County Airport Express buses connect Rohnert Park with Oakland International Airport and San Francisco International Airport . The Cotati-Rohnert Park Unified School District serves
1764-580: The USA , Boy Scouts of America , 4-H , and various other community organizations. The first classes were taught in a small building on Peters' Ranch (Harris 1980: 33). In 1876, the first school was built at the southwest corner of Adobe Road and Main Street. It was named the Eagle School after the Eagle Hotel located across Main Street and shown on Thompson's map of Sonoma County (1877). In 1906 after construction of
1827-425: The age of 18 living in them, 6,546 (41.4%) were opposite-sex married couples living together, 1,883 (11.9%) had a female householder with no husband present, 907 (5.7%) had a male householder with no wife present. There were 1,201 (7.6%) unmarried opposite-sex partnerships , and 144 (0.9%) same-sex married couples or partnerships . 4,177 households (26.4%) were one person and 1,374 (8.7%) had someone living alone who
1890-427: The area with olive trees, but when the trees matured it was found that the olives were not edible. The Penn brothers tore out many of the groves, sold the land and moved away. However, while they were here, they named their place Penn's Grove. Later it was changed to "Penn Grove," and still later, because our mail got confused with that of Pine Grove (the former name of Sebastopol ), the U.S. Postoffice Department changed
1953-698: The border with the City of Cotati ), Copeland Creek , Hinebaugh Creek , Crane Creek and Five Creek . All creeks within the city limits have been channelized. Spivock Creek, Coleman Creek, Wilfred Channel, and Labath Channel are artificial channels designed to convey runoff . Riparian communities within the city are limited by channelization of creekbeds. Vegetation alongside the city's streams primarily consists of grass and sedge species. The Laguna de Santa Rosa contains bands of thick native riparian vegetation, including willow ( Salix spp.) and alder ( Alnus spp.) trees. Sudden oak death fungus risks are present in
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2016-484: The boundaries for CDPs. The PSAP was to be offered to county and municipal planning agencies during 2008. The boundaries of such places may be defined in cooperation with local or tribal officials, but are not fixed, and do not affect the status of local government or incorporation; the territories thus defined are strictly statistical entities. CDP boundaries may change from one census to the next to reflect changes in settlement patterns. Further, as statistical entities,
2079-419: The boundaries of the CDP may not correspond with local understanding of the area with the same name. Recognized communities may be divided into two or more CDPs while on the other hand, two or more communities may be combined into one CDP. A CDP may also cover the unincorporated part of a named community, where the rest lies within an incorporated place. By defining an area as a CDP, that locality then appears in
2142-547: The building in the late 1970s and the Women's Club could no longer afford the upkeep, the Penngrove Social Firemen bought the building. It is now used for various community events, such as voting and fundraisers. "The Bank Building was built in 1922 for the Central Commercial and Savings Bank. The bank lasted only 2 or 3 years. The bank manager and his family lived upstairs" (Harris 1980: 48). The Penngrove Rail Station burned to
2205-548: The chest. Shields stated that he believed Kao was waving the stick in a martial arts fashion, and that he and Lynch had to respond by using deadly force. The incident was investigated by the Sonoma County Sheriff's Office, the Sonoma County District Attorney's Office, and FBI , who all cleared Shields. Kao's family and attorney John Burris filed a lawsuit against the city of Rohnert Park, and received
2268-418: The city engaged an independent investigator, who found that Rodriguez's actions were within the law and followed department policy. A civil rights claim filed on behalf of the resident asserted that Rodriguez was trying to intimidate him. The lawsuit concluded in a settlement. On November 16, 2018, a civil rights lawsuit was filed against Rohnert Park alleging that Rohnert Park police "conspired to expand
2331-532: The city was 80.28% White, 1.97% African American, 0.78% Native American, 5.58% Asian, 0.42% Pacific Islander, 5.72% from other races, and 5.25% from two or more races. Hispanic or Latino of any race were 13.57%. Of the 15,503 households 35.1% had children under the age of 18 living with them, 46.7% were married couples living together, 11.9% had a female householder with no husband present, and 36.8% were non-families. 24.0% of households were one person and 7.7% were one person aged 65 or older. The average household size
2394-588: The community for which the CDP is named for services provided therein. There is no mandatory correlation between CDP names or boundaries and those established for other human purposes, such as post office names or zones, political precincts, or school districts. The Census Bureau states that census-designated places are not considered incorporated places and that it includes only census-designated places in its city population list for Hawaii because that state has no incorporated cities. In addition, census city lists from 2007 included Arlington County, Virginia 's CDP in
2457-555: The corner of Main Street and Old Redwood Highway, the Rancho Adobe Firefighters' Association sponsors a breakfast. The naming of Penngrove is uncertain; there are three main "histories" of the name's origin. Ruth Anderson, the famous "Bell-Lady" of Penngrove (who lived on the site of the old schoolhouse on Oak Street), recalls, "In the late 1860s, two brothers by the name of Penn came out from Pennsylvania and bought 80 acres (320,000 m) of land in this area. They planted
2520-552: The ground in 1980, and nothing of it survives. The poultry loading docks still exist behind Penngrove Market, adjacent to Penngrove Park, and now house businesses. Census-designated place CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places , such as self-governing cities , towns , and villages , for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated community, for which
2583-487: The legitimate interdiction mission to one of personal financial gain, and over the years seized thousands of pounds of cannabis and hundreds of thousands of dollars of currency without issuing receipts for the seizures, without making arrests for any crimes, and without any official report of the forfeitures being made". KQED published an investigation in June 2018, quoting complaints by other motorists saying they were "robbed" by
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2646-543: The list with the incorporated places, but since 2010, only the Urban Honolulu CDP, Hawaii, representing the historic core of Honolulu, Hawaii , is shown in the city and town estimates. The Census Bureau reported data for some unincorporated places as early as the first census in 1790 (for example, Louisville, Kentucky , which was not legally incorporated in Kentucky until 1828), though usage continued to develop through
2709-507: The name to one word—Penngrove." (Harris 1980) Other accounts state that because there was another town with the name of Penn's Grove in New Jersey , this could be a reason as to why the post office changed the name. Others claim that the Woodward family, who came from Pennsylvania, named their property Penn's Grove in honor of their home state. Along with the chicken and egg industry, Penngrove
2772-426: The oldest buildings in Penngrove, the old Methodist Episcopal Church was built in 1898 at the corner of Formschlag Lane and Petaluma Hill Road. In 1910, the church was moved on wooden rollers to its present location at 9970 Oak Street. The original building now serves as a fellowship hall, while a newer structure, built in 1955–1957, now serves as the main sanctuary. The original structure is still used by Girl Scouts of
2835-412: The paving stone industry kept Penngrove station busy. After the turn of the century, Penngrove became the "second largest egg and poultry producing area in the country. Only Petaluma outdid this area" (Harris 1980). Apparently, according to The San Francisco Examiner , chickens paid better than gold mines. To this day, many dilapidated chicken houses dot old farms and country roads in the area. One of
2898-591: The population lived in households and 0.4% lived in non-institutionalized group quarters. There were 1,040 households, out of which 260 (25.0%) had children under the age of 18 living in them, 483 (46.4%) were opposite-sex married couples living together, 117 (11.3%) had a female householder with no husband present, 65 (6.3%) had a male householder with no wife present. There were 80 (7.7%) unmarried opposite-sex partnerships , and 10 (1.0%) same-sex married couples or partnerships . 285 households (27.4%) were made up of individuals, and 83 (8.0%) had someone living alone who
2961-477: The property was broken up and sold off piecemeal to incoming settlers. The town of Rohnert Park was named after the Rohnert family, which owned the Rohnert Seed Farm. In 1929, a successful businessman, Waldo Emerson Rohnert (1869–1933), a native of Detroit, Michigan , purchased a large ranch in the area and minimized flooding in the fields with a crude drainage system. He died shortly thereafter. His son, Fred Rohnert,
3024-617: The railway. The creek feeds into the Petaluma River , which flows to San Pablo Bay . Due to the Sonoma Mountain 's ancient volcanism, Penngrove is rich with obsidian and petrified wood . Its soil is unique, composed mainly of clay-like adobe , which has been used for centuries as building material. A prime example of adobe architecture is the Rancho Petaluma Adobe , a State Historic Park in nearby Petaluma. Penngrove enjoys
3087-459: The region. The grant encompassed present-day Penngrove, Cotati and Rohnert Park . Cotate Rancho is a part of Vallejo Township which encompasses the plain between Sonoma Mountain and Petaluma Creek, San Pablo Bay , with an east–west line dividing the tract from Santa Rosa Township." Rancho Cotate was sold in 1849 to Dr. Thomas S. Page of Cotati, and eventually broken up and sold off piecemeal to incoming settlers. The first European settlers in
3150-457: The same category of census data as incorporated places. This distinguishes CDPs from other census classifications, such as minor civil divisions (MCDs), which are in a separate category. The population and demographics of the CDP are included in the data of county subdivisions containing the CDP. Generally, a CDP shall not be defined within the boundaries of what the Census Bureau regards to be an incorporated city, village or borough. However,
3213-477: The second Eagle School, the old school was used as a teacher's residence. It was later moved about 50 ft (15 m) south to its current location and reconfigured into an ell. The second Eagle School was built between Main and Oak streets. The original structure no longer exists, and a private home now stands on that property, however, the steps leading to "Eagle School" from Main Street are still visible. Some of building materials were recycled for construction of
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#17328772357113276-472: The war they decided they wanted to stay together as a group and have a club house of their own" (Harris 1980: 33). In 1922, after raising funds and materials, Penngrove came together to build the Community Club House. The total cost was $ 9,000. The building was first named the "Penngrove Social Welfare Club House", but was later shortened to Penngrove Women's Club House. After a fire destroyed portions of
3339-499: Was $ 61,420. Males had a median income of $ 41,757 versus $ 31,149 for females. The per capita income for the city was $ 23,035. About 3.2% of families and 8.0% of the population were below the poverty line , including 4.6% of those under age 18 and 6.3% of those over age 64. Rohnert Park is governed by a City Council of five members, who serve staggered four-year terms. Municipal elections are held in November of even-numbered years. In 2019,
3402-463: Was 2.1%; the rental vacancy rate was 4.8%. 55.8% of the population lived in owner-occupied housing units and 43.3% lived in rental housing units. At the 2000 census there were 42,236 people in 15,503 households, including 9,797 families, in the city. The population density was 6,564.5 inhabitants per square mile (2,534.6/km ). There were 15,808 housing units at an average density of 2,457 units per square mile (949 units/km ). The racial makeup of
3465-412: Was 2.65 and the average family size was 3.20. The age distribution was 25.3% under the age of 18, 14.8% from 18 to 24, 32.0% from 25 to 44, 19.8% from 45 to 64, and 8.1% 65 or older. The median age was 32 years. For every 100 females, there were 94.1 males. For every 100 females age 18 and over, there were 90.2 males. The median income for a household in the city was $ 51,942, and the median family income
3528-455: Was 31,178 (76.1%) White, 759 (1.9%) African American, 407 (1.0%) Native American, 2,144 (5.2%) Asian, 179 (0.4%) Pacific Islander, 3,967 (9.7%) from other races, and 2,337 (5.7%) from two or more races. Hispanic or Latino of any race were 9,068 persons (22.1%). The census reported that 99.0% of the population lived in households and 1.0% lived in non-institutionalized group quarters. There were 15,808 households, 4,842 (30.6%) had children under
3591-580: Was 44.8 years. For every 100 females, there were 98.4 males. For every 100 females age 18 and over, there were 99.0 males. There were 1,120 housing units at an average density of 278.3 per square mile (107.5/km), of which 61.5% were owner-occupied and 38.5% were occupied by renters. The homeowner vacancy rate was 1.4%; the rental vacancy rate was 3.1%. 64.6% of the population lived in owner-occupied housing units and 35.0% lived in rental housing units. The Mexican government granted Rancho Cotate to Captain Juan Castaneda in July 1844 for his military services in
3654-711: Was 65 or older. The average household size was 2.57. There were 9,336 families (59.1% of households); the average family size was 3.13. The age distribution was 8,571 people (20.9%) under the age of 18, 6,853 people (16.7%) aged 18 to 24, 11,035 people (26.9%) aged 25 to 44, 10,710 people (26.1%) aged 45 to 64, and 3,802 people (9.3%) who were 65 or older. The median age was 33.0 years. For every 100 females, there were 95.3 males. For every 100 females age 18 and over, there were 92.7 males. There were 16,551 housing units at an average density of 2,361.9 units per square mile (911.9 units/km ), of which 54.0% were owner-occupied and 46.0% were occupied by renters. The homeowner vacancy rate
3717-407: Was 65 years of age or older. The average household size was 2.42. There were 665 families (63.9% of all households); the average family size was 2.89. The population was spread out, with 442 people (17.5%) under the age of 18, 244 people (9.7%) aged 18 to 24, 585 people (23.2%) aged 25 to 44, 889 people (35.2%) aged 45 to 64, and 362 people (14.4%) who were 65 years of age or older. The median age
3780-534: Was a source of basalt paving stones, which were used to pave the streets of major cities in the Bay Area , including San Francisco. Harris notes that 200 men were employed at the three major cobblestone quarries at the end of the 19th century, and that quarry scars can still be seen dotting the hills between East Railroad Avenue and Roberts Road. When the Northwestern Pacific Railroad was completed in 1870,
3843-416: Was built on Woodward Avenue, just above Main Street. This structure still bears the title "Penngrove Firehouse." It is a now a private residence. In 1975, the current firehouse was built at the corner of Old Redwood Highway and Main Street, the unofficial entrance to Penngrove. Until the 1990s, a siren placed at the top of the building would sound in order to alert volunteer firefighters of a fire. The siren had
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#17328772357113906-473: Was formerly a freight station on the Northwestern Pacific Railroad and a center of egg and chicken farming. Penngrove's downtown consists of Main Street, a 0.3-mile (0.48 km) street linking Old Redwood Highway to Adobe Road. Penngrove School is located at the corner of Adobe Road, where Main Street becomes Petaluma Hill Road. Lichau Creek flows southward through the town, paralleling
3969-477: Was reduced to 2,500. From 1950 through 1990, the Census Bureau specified other population requirements for unincorporated places or CDPs in Alaska , Puerto Rico , island areas, and Native American reservations . Minimum population criteria for CDPs were dropped with the 2000 Census . The Census Bureau's Participant Statistical Areas Program (PSAP) allows designated participants to review and suggest modifications to
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