St. Clair County
Sign in to saveAlso known as St. Clair County, Missouri, Saint Clair County, Saint Clair County, Missouri, St. Clair County, MO
county in Missouri, United States
Key facts
- Country
- United States
- State
- Missouri
- Founded
- January 29, 1841
- Named after
- Arthur St. Clair
- Seat
- Osceola
- Largest city
- Appleton City
- Total
- 702 sq mi (1,820 km )
- Land
- 670 sq mi (1,700 km )
- Water
- 32 sq mi (83 km ) 4.6%
- Estimate 2025
- 9,976
- Density
- 14.9/sq mi (5.8/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
- 4th
- Website
- www .stclaircomo .com
via Wikipedia infobox
Wikidata facts
- Population
- 9284
- Area
- 1818
- Official website
- www.stclaircomo.com
- Image
- St Clair County Missouri courthouse 20191026-6924.jpg
- Households
- 4120
Show 5 more facts
- Commons category
- St. Clair County, Missouri
- inception
- 1841-01-29
- water as percent of area
- 4.6
- native label
- St. Clair County
- per capita income
- 23158
Sources (11)
via Wikidata · CC0
~6 min read
Article
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. Its county seat is Osceola. The largest city is Appleton City. The county was organized in 1841 and named after General Arthur St. Clair, Governor of the Northwest Territory. 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.
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.