St. Clair County, Missouri

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Template:Infobox U.S. county

St. Clair County is a county located in the western portion of the U.S. state of Missouri. As of the 2020 census, the population was 9,284.[1] Its county seat is Osceola.[2] The largest city is Appleton City. The county was organized in 1841 and named after General Arthur St. Clair, Governor of the Northwest Territory.[3] St. Clair was also the 9th president of the United States in Congress Assembled. Under his presidency, the Northwest Ordinance and United States Constitution were passed.[4]

According to the April 1907 issue of The Century Magazine, for well over 30 years (dating from 1870) St. Clair County was in open rebellion against the U.S. Government, refusing to pay interest on bonds issued to assist in the building of a railroad that was never built.

Geography

According to the U.S. Census Bureau, the county has a total area of 702 square miles (1,820 km2), of which 670 square miles (1,700 km2) is land and 32 square miles (83 km2) (4.6%) is water.[5]

Adjacent counties

Major highways

Transit

Demographics

Template:US Census population

2020 census

As of the 2020 census, the county had a population of 9,284. The median age was 48.4 years, with 21.3% of residents under the age of 18 and 25.8% aged 65 or older. For every 100 females there were 102.7 males, and for every 100 females age 18 and over there were 101.3 males.[6]

The racial makeup of the county was 93.1% White, 0.3% Black or African American, 0.7% American Indian and Alaska Native, 0.2% Asian, 0.1% Native Hawaiian and Pacific Islander, 0.7% from some other race, and 4.9% from two or more races. Hispanic or Latino residents of any race comprised 1.9% of the population.[7]

St. Clair 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) 8,510 8,356 9,338 9,366 8,567 98.70% 98.81% 96.75% 95.52% 92.28%
Black or African American alone (NH) 17 22 20 47 26 0.20% 0.26% 0.21% 0.48% 0.28%
Native American or Alaska Native alone (NH) 58 41 72 58 63 0.67% 0.48% 0.75% 0.59% 0.68%
Asian alone (NH) 5 5 14 12 19 0.06% 0.06% 0.15% 0.12% 0.20%
Native Hawaiian or Pacific Islander alone (NH) x [13] x [14] 2 1 7 x x 0.02% 0.01% 0.08%
Other race alone (NH) 0 0 4 1 23 0.00% 0.00% 0.04% 0.01% 0.25%
Mixed race or Multiracial (NH) x [15] x [16] 107 150 401 x x 1.11% 1.53% 4.32%
Hispanic or Latino (any race) 32 33 95 170 178 0.37% 0.39% 0.98% 1.73% 1.92%
Total 8,622 8,457 9,652 9,805 9,284 100.00% 100.00% 100.00% 100.00% 100.00%

0.0% of residents lived in urban areas, while 100.0% lived in rural areas.[17]

There were 3,928 households in the county, of which 23.3% had children under the age of 18 living with them and 23.3% had a female householder with no spouse or partner present. About 31.8% of all households were made up of individuals and 17.1% had someone living alone who was 65 years of age or older.[6]

There were 5,288 housing units, of which 25.7% were vacant. Among occupied housing units, 76.0% were owner-occupied and 24.0% were renter-occupied. The homeowner vacancy rate was 1.6% and the rental vacancy rate was 10.7%.[6]

2000 census

As of the census[18] of 2000, there were 9,652 people, 4,040 households, and 2,791 families residing in the county. The population density was 14 people per square mile (5.4 people/km2). There were 5,205 housing units at an average density of 8 units per square mile (3.1/km2). The racial makeup of the county was 97.36% White, 0.23% Black or African American, 0.75% Native American, 0.15% Asian, 0.02% Pacific Islander, 0.29% from other races, and 1.21% from two or more races. Approximately 0.98% of the population were Hispanic or Latino of any race.

There were 4,040 households, out of which 26.30% had children under the age of 18 living with them, 57.60% were married couples living together, 7.70% had a female householder with no husband present, and 30.90% were non-families. 27.40% of all households were made up of individuals, and 14.80% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.83.

In the county, the population was spread out, with 23.00% under the age of 18, 5.60% from 18 to 24, 22.90% from 25 to 44, 27.20% from 45 to 64, and 21.30% who were 65 years of age or older. The median age was 44 years. For every 100 females there were 98.60 males. For every 100 females age 18 and over, there were 94.30 males.

The median income for a household in the county was $25,321, and the median income for a family was $31,498. Males had a median income of $23,231 versus $18,351 for females. The per capita income for the county was $14,025. About 16.20% of families and 19.60% of the population were below the poverty line, including 25.30% of those under age 18 and 17.60% of those age 65 or over.

Education

Public schools

  • Appleton City R-II School District – Appleton City
    • Appleton City Elementary School (K–5)
    • Appleton City High School (06-12)
  • Hudson R-IX School District – Appleton City
    • Hudson Elementary School (PK–8)
  • Osceola Public Schools – Osceola
    • Osceola Elementary School (PK–6)
    • Osceola High School (7–12)
  • Roscoe C-1 School District – Roscoe
    • Roscoe Elementary School (PK–8)
  • Lakeland R-III School District – Lowry City & Deepwater
    • Lakeland Elementary School

Public libraries

  • Appleton City Public Library
  • St. Clair County Library-Main Library (Osceola)
  • St. Clair County Library-Lowry City Branch

Communities

Cities

Villages

Unincorporated communities

Townships

St. Clair County is divided into 16 townships:

Politics

Local

The Republican Party predominantly controls politics at the local level in St. Clair County.

Template:Missouri county elected officials

State

Past gubernatorial elections results
Year Republican Democratic Third Parties
2024 78.01% 3,887 20.11% 1,002 1.88% 94
2020 78.01% 3,880 20.00% 995 1.99% 99
2016 62.86% 2,927 33.51% 1,560 3.63% 169
2012 50.33% 2,335 45.72% 2,121 3.95% 183
2008 41.90% 2,093 54.73% 2,734 3.36% 168
2004 58.21% 2,888 40.40% 2,004 1.39% 69
2000 50.73% 2,405 47.35% 2,245 1.92% 91
1996 42.91% 1,909 54.37% 2,419 2.72% 121

All of St. Clair County is a part of Missouri's 125th District in the Missouri House of Representatives and is represented by Warren Love (R-Osceola). Template:Election box begin 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 end Template:Election box begin Template:Election box candidate with party link Template:Election box end

All of St. Clair County is a part of Missouri's 28th District in the Missouri Senate. The seat is currently Held by Sandy Crawford. Template:Election box begin Template:Election box candidate with party link Template:Election box end

Federal

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All of St. Clair County is included in Missouri's 4th Congressional District and is currently represented by Vicky Hartzler (R-Harrisonville) in the U.S. House of Representatives. Template:Election box begin Template:Election box candidate with party link 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 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 candidate with party link Template:Election box candidate with party link Template:Election box end

Political culture

United States presidential election results for St. Clair County, Missouri[19]
Year Republican Democratic Third party
No.  % No.  % No.  %
1888 1,635 44.33% 1,697 46.01% 356 9.65%
1892 1,510 40.79% 1,572 42.46% 620 16.75%
1896 1,829 40.30% 2,686 59.19% 23 0.51%
1900 1,844 44.91% 2,036 49.59% 226 5.50%
1904 1,895 49.65% 1,761 46.14% 161 4.22%
1908 1,723 46.50% 1,877 50.66% 105 2.83%
1912 1,046 28.14% 1,710 46.00% 961 25.85%
1916 1,718 45.80% 1,881 50.15% 152 4.05%
1920 3,249 56.94% 2,296 40.24% 161 2.82%
1924 2,907 49.70% 2,640 45.14% 302 5.16%
1928 3,846 68.88% 1,701 30.46% 37 0.66%
1932 2,271 37.71% 3,681 61.13% 70 1.16%
1936 3,351 50.13% 3,302 49.40% 31 0.46%
1940 3,950 57.80% 2,859 41.83% 25 0.37%
1944 3,306 60.87% 2,119 39.02% 6 0.11%
1948 2,548 50.52% 2,489 49.35% 7 0.14%
1952 3,465 64.17% 1,914 35.44% 21 0.39%
1956 3,018 57.84% 2,200 42.16% 0 0.00%
1960 3,196 63.15% 1,865 36.85% 0 0.00%
1964 1,961 43.06% 2,593 56.94% 0 0.00%
1968 2,271 54.36% 1,496 35.81% 411 9.84%
1972 2,847 66.88% 1,410 33.12% 0 0.00%
1976 1,808 44.07% 2,271 55.35% 24 0.58%
1980 2,419 57.46% 1,706 40.52% 85 2.02%
1984 2,667 61.71% 1,655 38.29% 0 0.00%
1988 2,312 55.27% 1,864 44.56% 7 0.17%
1992 1,555 33.72% 1,965 42.62% 1,091 23.66%
1996 1,815 40.58% 1,974 44.13% 684 15.29%
2000 2,731 57.63% 1,866 39.38% 142 3.00%
2004 3,098 62.40% 1,841 37.08% 26 0.52%
2008 2,981 59.76% 1,886 37.81% 121 2.43%
2012 3,019 65.26% 1,460 31.56% 147 3.18%
2016 3,501 75.62% 936 20.22% 193 4.17%
2020 3,932 79.05% 988 19.86% 54 1.09%
2024 3,982 79.61% 959 19.17% 61 1.22%
2016 1 33.33% 1 33.33% 1 33.33%


See also

References

  1. ↑ "Explore Census Data". data.census.gov. Retrieved December 27, 2021.
  2. ↑ "Find a County". National Association of Counties. Retrieved June 7, 2011.
  3. ↑ Eaton, David Wolfe (1918). How Missouri Counties, Towns and Streams Were Named. The State Historical Society of Missouri. pp. 357.
  4. ↑ Klos, Stanley L. (2004). "Arthur St. Clair". President Who? Forgotten Founders. Pittsburgh, Pennsylvania: Evisum, Inc. pp. 367–422. ISBN 0-9752627-5-0.
  5. ↑ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on October 21, 2013. Retrieved November 20, 2014.
  6. ↑ 6.0 6.1 6.2 "2020 Decennial Census Demographic Profile (DP1)". United States Census Bureau. 2021. Retrieved December 18, 2025.
  7. ↑ "2020 Decennial Census Redistricting Data (Public Law 94-171)". United States Census Bureau. 2021. 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. pp. 20–25. Archived from the original (PDF) on November 13, 2025 – via Wayback Machine.
  9. ↑ "1990 Census of Population - General Population Characteristics - Missouri: Table 5 - Race and Hispanic Origin" (PDF). United States Census Bureau. pp. 13–63. Archived from the original (PDF) on March 13, 2025 – via Wayback Machine.
  10. ↑ "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – St. Clair 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) – St. Clair 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) – St. Clair 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. ↑ "2020 Decennial Census Demographic and Housing Characteristics (DHC)". United States Census Bureau. 2023. Retrieved December 18, 2025.
  18. ↑ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  19. ↑ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved March 26, 2018.

Template:Geographic Location

Template:St. Clair County, Missouri Template:Missouri Coordinates: 38°02′N 93°46′W / 38.04°N 93.77°W / 38.04; -93.77

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