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St. Clair County, Missouri
Map of Missouri highlighting St. Clair County
Location in the state of Missouri
Map of the U.S. highlighting Missouri
Missouri's location in the U.S.
Founded 1841
Named for Arthur St. Clair, governor of the Northwest Territory
Seat Osceola
Largest city Appleton City
 - Total
 - Land
 - Water

702 sq mi (1,818 km²)
677 sq mi (1,753 km²)
25 sq mi (65 km²), 3.60%
 - (2000)
 - Density

14/sq mi (6/km²)
Time zone Central: UTC-6/-5

St. Clair County is a county located in the U.S. state of Missouri. As of 2000, the population is 9,652. Its county seat is Osceola6. The county was organized in 1841 and named for Gen. Arthur St. Clair, governor of the Northwest Territory.


According to the U.S. Census Bureau, the county has a total area of 1,818 km² (702 sq mi). 1,753 km² (677 sq mi) of it is land and 65 km² (25 sq mi) of it (3.60%) is water.

Adjacent counties[]

Major highways[]


As of the census2 of 2000, there were 9,652 people, 4,040 households, and 2,791 families residing in the county. The population density was 6/km² (14/sq mi). There were 5,205 housing units at an average density of 3/km² (8/sq mi). 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. 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.

Cities and towns[]

Coordinates: 38°02′N 93°46′W / 38.04, -93.77

This page uses content from the English language Wikipedia. The original content was at St. Clair County, Missouri. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.