Platte County, Missouri

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Template:Infobox U.S. county

Platte County is a county located in the northwestern portion of the U.S. state of Missouri and is part of the Kansas City metropolitan area. As of the 2020 census, the population was 106,718. Its county seat is Platte City.[1] The county was organized December 31, 1838,[2] from the Platte Purchase,[3] named for the Platte River. (Platte is derived from the French word for a low, shallow, or intermittent stream.) The Kansas City International Airport is located in the county, approximately one mile west of Interstate 29 between mile markers 12 and 15. The land for the airport was originally in an unincorporated portion of Platte County before being annexed by Platte City, and eventually Kansas City.

Geography

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File:Platte-courthouse.jpg
Platte County Courthouse in Platte City was built after the original courthouse was burned with the rest of Platte City during the American Civil War. Blanche Barrow was held at the adjoining jail following a Bonnie & Clyde shootout just south of Platte City.

According to the U.S. Census Bureau, the county has a total area of 427 square miles (1,110 km2), of which 420 square miles (1,100 km2) is land and 6.6 square miles (17 km2) (1.5%) is water.[4] The county's southwestern border with Kansas is formed by the Missouri River.

Adjacent counties

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Major highways

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Demographics

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Template:US Census population

2020 census

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As of the 2020 census, the county had a population of 106,718. The median age was 38.3 years. 23.9% of residents were under the age of 18 and 15.0% of residents were 65 years of age or older. For every 100 females there were 96.3 males, and for every 100 females age 18 and over there were 94.2 males age 18 and over.[5]

The racial makeup of the county was 78.3% White, 7.8% Black or African American, 0.5% American Indian and Alaska Native, 2.6% Asian, 0.7% Native Hawaiian and Pacific Islander, 2.0% from some other race, and 8.2% from two or more races. Hispanic or Latino residents of any race comprised 6.7% of the population.[6]

86.4% of residents lived in urban areas, while 13.6% lived in rural areas.[7]

There were 42,452 households in the county, of which 32.4% had children under the age of 18 living with them and 24.1% had a female householder with no spouse or partner present. About 26.8% of all households were made up of individuals and 9.2% had someone living alone who was 65 years of age or older.[5]

There were 45,307 housing units, of which 6.3% were vacant. Among occupied housing units, 65.0% were owner-occupied and 35.0% were renter-occupied. The homeowner vacancy rate was 1.2% and the rental vacancy rate was 9.2%.[5]

Racial and ethnic composition

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Platte County, Missouri – Racial and ethnic composition
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
Race / Ethnicity (NH = Non-Hispanic) Pop 1980[8] Pop 1990[9] Pop 2000[10] Pop 2010[11] Pop 2020[12] % 1980 % 1990 % 2000 % 2010 % 2020
White alone (NH) 44,608 54,438 66,230 75,135 81,426 96.26% 94.07% 89.77% 84.12% 76.30%
Black or African American alone (NH) 568 1,195 2,542 5,147 8,135 1.23% 2.07% 3.45% 5.76% 7.62%
Native American or Alaska Native alone (NH) 137 298 303 370 391 0.30% 0.51% 0.41% 0.41% 0.37%
Asian alone (NH) 329 762 1,084 2,031 2,721 0.71% 1.32% 1.47% 2.27% 2.55%
Native Hawaiian or Pacific Islander alone (NH) x [13] x [14] 148 287 695 x x 0.20% 0.32% 0.65%
Other race alone (NH) 159 13 77 123 459 0.34% 0.02% 0.10% 0.14% 0.43%
Mixed race or Multiracial (NH) x [15] x [16] 1,186 1,805 5,730 x x 1.61% 2.02% 5.37%
Hispanic or Latino (any race) 540 1,161 2,211 4,424 7,161 1.17% 2.01% 3.00% 4.95% 6.71%
Total 46,341 57,867 73,781 89,322 106,718 100.00% 100.00% 100.00% 100.00% 100.00%

2000 census

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As of the census[17] of 2000, there were 73,781 people, 29,278 households, and 20,231 families residing in the county. The population density was 176 people per square mile (68 people/km2). There were 30,902 housing units at an average density of 74 units per square mile (29/km2). The racial makeup of the county was 91.45% White, 3.49% Black or African American, 0.46% Native American, 1.48% Asian, 0.20% Pacific Islander, 1.05% from other races, and 1.87% from two or more races. Approximately 3.00% of the population were Hispanic or Latino of any race. 23.4% were of German, 12.5% Irish, 12.2% American and 11.4% English ancestry.

There were 29,278 households, out of which 34.10% had children under the age of 18 living with them, 57.00% were married couples living together, 8.80% had a female householder with no husband present, and 30.90% were non-families. 24.90% of all households were made up of individuals, and 6.00% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.00.

In the county, the population was spread out, with 25.80% under the age of 18, 8.30% from 18 to 24, 32.60% from 25 to 44, 24.50% from 45 to 64, and 8.80% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 98.10 males. For every 100 females age 18 and over, there were 95.50 males.

The median income for a household in the county was $55,849, and the median income for a family was $65,236. Males had a median income of $44,310 versus $31,005 for females. The per capita income for the county was $26,356. About 3.30% of families and 4.80% of the population were below the poverty line, including 5.70% of those under age 18 and 5.70% of those age 65 or over.

Education

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School districts

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School districts (all full K-12) include:[18]

Public schools

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  • North Platte R-I School District – Dearborn
    • North Platte Elementary School (PK-03)
    • North Platte Intermediate School (04-06)
    • North Platte Junior High School (07-08)
    • North Platte High School (09-12)
  • Park Hill School District – Kansas City
    • Russell Jones Education Center (K-12) – (Special Education)
    • Hopewell Elementary School (K-05)
    • Alfred L. Renner Elementary School (K-05)
    • Thomas B. Chinn Elementary School (K-05)
    • English Landing Elementary School (K-05)
    • Graden Elementary School (K-05)
    • Hawthorn Elementary School (K-05)
    • Line Creek Elementary School (K-05)
    • Gerner Family Early Education Center (PK)
    • Prairie Point Elementary School (K-05)
    • Southeast Elementary School (K-05)
    • Tiffany Ridge Elementary School (K-05)
    • Union Chapel Elementary School (K-05)
    • Congress Middle School (06-08)
    • Lakeview Middle School (06-08)
    • Plaza Middle School (06-08)
    • Walden Middle School (06-08)
    • Park Hill High School (09-12) -- within Kansas City city limits
    • Park Hill South High School (09-12) – Riverside
    • LEAD Innovation Studio (09-12)
  • Platte County R-III School District – Platte City
    • Donald D. Siegrist Elementary School (K-5)
    • Pathfinder Elementary School (PK-5)
    • Compass Elementary School (PK-5)
    • Barry Elementary School (PK-5)
    • Platte Purchase Middle School (06-08)
    • Platte City Middle School (06-08)
    • Platte County High School (09-12)
  • West Platte County R-II School District – Weston
    • Central Elementary School (PK-06)
    • West Platte County High School (07-12)

Private schools

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College and universities

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Metropolitan Community College has a service area that includes all of the county, though only the portion in the Park Hill school district is in the community college district's in-district taxation zone.[19]

Public libraries

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Communities

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Cities

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Villages

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Civil townships

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Census-designated place

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Unincorporated communities

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Population ranking

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The population ranking of the following table is based on the 2020 US census of Platte County.[21]

† County seat
†† Partly within adjacent counties

Rank Name Municipal Type Population
1 Kansas City †† Home Rule 508,090
2 Smithville †† 4th Class City 10,406
3 Parkville 4th Class City 7,117
4 Platte City † 4th Class City 4,784
5 Riverside 4th Class City 4,013
6 Weatherby Lake 4th Class City 2,077
7 Weston 4th Class City 1,756
8 Lake Waukomis 4th Class City 888
9 Ferrelview Village 642
10 Edgerton 4th Class City 601
11 Dearborn 4th Class City 482
12 Camden Point 4th Class City 457
13 Platte Woods 4th Class City 394
14 Northmoor 4th Class City 291
15 Tracy 4th Class City 269
16 Farley Village 265
17 Houston Lake 4th Class City 229
18 Ridgely Village 95
19 New Market Census-designated place 88
20 Iatan Village 39

Politics

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Local

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The Republican Party controls politics at the local level in Platte County. Republicans hold all of the elected positions in the county. However, Governor Jay Nixon carried the county in his two successful elections, and in 2004, Claire McCaskill of Jackson County narrowly won a majority of the county's votes over Republican victor Matt Blunt. While the county has swung to the Republican party, the presence of Kansas City has helped keep the county competitive into the 21st century.

State

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Past Gubernatorial Elections Results
Year Republican Democratic Third Parties
2024 52.31% 30,102 45.75% 26,328 1.94% 1,114
2020 51.84% 29,616 46.02% 26,293 2.14% 1,222
2016 50.20% 24,738 46.62% 22,973 2.58% 1,269
2012 44.64% '20,154 52.39% 23,654 2.97% 1,339
2008 42.51% 19,417 55.23% 25,228 2.26% 1,032
2004 48.31% 20,137 50.31% 20,970 1.32% 577
2000 50.23% 16,971 47.69% 16,115 2.08% 703
1996 36.40% 10,581 61.37% 17,840 2.23% 647

Platte County is divided into three legislative districts in the Missouri House of Representatives, two held by Republicans and one held by a Democrat.

  • District 12 — Mike Jones (R-Kansas City). Consists of Parkville, Riverside, and Platte Woods.

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  • District 13 — Sean Pouche (R-Kansas City). Consists of the communities of Platte City, Weston, Farley, Ferrelview, and a part of the city of Kansas City. District 13 also consists of portions of Buchanan County.

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  • District 14 – Ashley Aune (D-Kansas City). Consists of the communities of Houston Lake, Lake Waukomis, Weatherby Lake, Northmoor, and part of the city of Kansas City.

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Along with Buchanan County, all of Platte County is a part of Missouri's 34th District in the Missouri Senate and is currently represented by Tony Luetkemeyer (R-Parkville). Template:Election box begin Template:Election box candidate with party link Template:Election box candidate with party link Template:Election box end Template:Election box begin Template:Election box candidate with party link Template:Election box candidate with party link Template:Election box end Template:Election box begin Template:Election box candidate with party link Template:Election box candidate with party link Template:Election box end

Federal

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All of Platte County is included in Missouri's 6th Congressional District. It is currently represented by Sam Graves (R-Tarkio) in the U.S. House of Representatives.

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United States presidential election results for Platte County, Missouri[22]
Year Republican Democratic Third party
No.  % No.  % No.  %
1888 1,010 26.75% 2,727 72.24% 38 1.01%
1892 885 23.71% 2,664 71.38% 183 4.90%
1896 1,044 24.47% 3,191 74.80% 31 0.73%
1900 997 24.45% 3,052 74.86% 28 0.69%
1904 953 27.06% 2,537 72.03% 32 0.91%
1908 982 25.84% 2,795 73.53% 24 0.63%
1912 510 14.80% 2,535 73.58% 400 11.61%
1916 921 23.52% 2,974 75.96% 20 0.51%
1920 1,724 28.25% 4,361 71.47% 17 0.28%
1924 1,999 34.80% 3,674 63.96% 71 1.24%
1928 2,423 41.94% 3,344 57.88% 10 0.17%
1932 1,160 18.24% 5,179 81.46% 19 0.30%
1936 1,787 26.71% 4,884 72.99% 20 0.30%
1940 2,545 35.38% 4,635 64.44% 13 0.18%
1944 2,344 38.47% 3,741 61.40% 8 0.13%
1948 1,644 27.34% 4,354 72.40% 16 0.27%
1952 3,390 42.36% 4,604 57.53% 9 0.11%
1956 3,596 40.55% 5,271 59.45% 0 0.00%
1960 4,771 44.88% 5,860 55.12% 0 0.00%
1964 3,059 33.24% 6,143 66.76% 0 0.00%
1968 4,836 42.74% 4,665 41.22% 1,815 16.04%
1972 8,764 67.69% 4,183 32.31% 0 0.00%
1976 8,103 47.51% 8,651 50.73% 300 1.76%
1980 10,092 53.81% 7,342 39.14% 1,322 7.05%
1984 12,859 62.64% 7,668 37.36% 0 0.00%
1988 11,838 51.18% 11,225 48.53% 66 0.29%
1992 9,380 31.82% 10,920 37.04% 9,178 31.14%
1996 13,332 45.36% 12,705 43.23% 3,352 11.41%
2000 17,785 52.23% 15,325 45.00% 944 2.77%
2004 23,302 55.52% 18,412 43.87% 256 0.61%
2008 24,460 52.44% 21,459 46.01% 721 1.55%
2012 25,618 56.04% 19,175 41.95% 917 2.01%
2016 25,933 52.28% 20,057 40.43% 3,618 7.29%
2020 28,917 50.49% 27,179 47.46% 1,174 2.05%
2024 29,381 50.49% 27,566 47.37% 1,242 2.13%
2016 1 33.33% 1 33.33% 1 33.33%


Missouri presidential preference primary (2008)

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Main articles: 2008 Missouri Democratic presidential primary and 2008 Missouri Republican presidential primary

Former U.S. Senator Hillary Clinton (D-New York) received more votes, a total of 5,434, than any candidate from either party in Platte County during the 2008 presidential primary.

See also

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References

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  1. ↑ "Find a County". National Association of Counties. Retrieved June 7, 2011.
  2. ↑ "Platte County History". Platte County, Missouri. Archived from the original on March 24, 2015. Retrieved November 25, 2014.
  3. ↑ Soil Survey (Platte County, Missouri ed.). U.S. Dept of Agriculture. 1923. p. 2. Retrieved January 19, 2015.
  4. ↑ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on October 21, 2013. Retrieved November 18, 2014.
  5. ↑ 5.0 5.1 5.2 "2020 Decennial Census Demographic Profile (DP1)". United States Census Bureau. 2021. Retrieved December 18, 2025.
  6. ↑ "2020 Decennial Census Redistricting Data (Public Law 94-171)". United States Census Bureau. 2021. Retrieved December 18, 2025.
  7. ↑ "2020 Decennial Census Demographic and Housing Characteristics (DHC)". United States Census Bureau. 2023. Retrieved December 18, 2025.
  8. ↑ "1980 Census of Population - General Social and Economic Characteristics - Missouri- Table 16 - Persons by Spanish Origin, Race, and Sex: 1980" (PDF). United States Census Bureau. p. 20-25.
  9. ↑ "1990 Census of Population - General Population Characteristics - Missouri: Table 5 - Race and Hispanic Origin" (PDF). United States Census Bureau. p. 13-63.
  10. ↑ "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Platte County, Missouri". United States Census Bureau.
  11. ↑ "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Platte County, Missouri". United States Census Bureau.
  12. ↑ "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Platte County, Missouri". United States Census Bureau.
  13. ↑ included in the Asian category in the 1980 Census
  14. ↑ included in the Asian category in the 1990 Census
  15. ↑ not an option in the 1980 Census
  16. ↑ not an option in the 1990 Census
  17. ↑ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  18. ↑ Geography Division (January 12, 2021). 2020 Census – School District Reference Map: Platte County, MO (PDF) (Map). U.S. Census Bureau. Archived (PDF) from the original on July 24, 2022. Retrieved July 23, 2022. - Text list
  19. ↑ "MCC Service Areas" (PDF). Metropolitan Community College. Retrieved June 15, 2025.
  20. ↑ Breeding, Marshall. "Mid-Continent Public Library". Libraries.org. Retrieved May 8, 2017.
  21. ↑ "2023-2024 Official Manual of the State of Missouri". Missouri Secretary of State. Retrieved May 28, 2025.
  22. ↑ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved March 26, 2018.
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Coordinates: 39°23′N 94°46′W / 39.38°N 94.77°W / 39.38; -94.77

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