St. Clair County in figures

A profile of St. Clair County from official statistics: 24 figures in 5 sections, each with its period, its change from a year earlier, its rank among similar places where a ranking exists, and its source.

Figures last updated on 2026-10-12.

People

Population in St. Clair County was 9,976 in 2025, up 1.4% from 2024, and the 31st lowest of 115 counties in Missouri.

Median age46.1 years2024Down 1.1 years from 2023Tied for the 12th highest of 115 counties in Missouri
Population aged 65 and over25.4%2025Down 0.1 percentage points from 2024The 18th highest of 115 counties in Missouri
Foreign-born population share1.2%2024Up 0.2 percentage points from 2023
Population density5.7 inhabitants per km²2025Up 1.3% from 2024
Net domestic migration, July to June1812025, estimatedCompared with 125 in 2024
9,2009,4009,6009,80010K2020202120222023202420252020: 9,350 persons2021: 9,417 persons2022: 9,584 persons2023: 9,750 persons2024: 9,843 persons2025: 9,976 persons9,2009,4009,6009,80010K2020202220252020: 9,350 persons2021: 9,417 persons2022: 9,584 persons2023: 9,750 persons2024: 9,843 persons2025: 9,976 persons
Population, 2020 to 2025. persons. Source: U.S. Census Bureau, Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program).

Sources: U.S. Census Bureau, Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program); U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population; U.S. Census Bureau, Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties; U.S. Census Bureau, American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs; U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km²; U.S. Census Bureau, Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Population and demography statistics and rankings

Work and income

Unemployment rate in St. Clair County was 4.2% (provisional) in August 2026, down 0.9 percentage points from August 2025, and tied for the 43rd highest of 115 counties in Missouri.

Unemployment rate4.2%August 2026, provisionalDown 0.9 percentage points from August 2025Tied for the 43rd highest of 115 counties in Missouri
Poverty rate (US official measure)16%2024Down 2.2 percentage points from 2023
Gini index44.62024Up 1.2 points from 2023
234562021-072022-042023-012023-102024-072025-042026-082021-07: 4.1 %2021-08: 4.2 %2021-09: 2.8 %2021-10: 3.3 %2021-11: 2.9 %2021-12: 3 %2022-01: 3.9 %2022-02: 3.9 %2022-03: 3.3 %2022-04: 2.2 %2022-05: 2.4 %2022-06: 2.8 %2022-07: 3 %2022-08: 3 %2022-09: 2.1 %2022-10: 2.8 %2022-11: 2.7 %2022-12: 2.6 %2023-01: 3.4 %2023-02: 3.6 %2023-03: 3.5 %2023-04: 3.5 %2023-05: 4 %2023-06: 4.2 %2023-07: 4.2 %2023-08: 4.1 %2023-09: 3.3 %2023-10: 3.8 %2023-11: 3.4 %2023-12: 3.5 %2024-01: 4.6 %2024-02: 4.2 %2024-03: 4 %2024-04: 3.3 %2024-05: 4.1 %2024-06: 4.3 %2024-07: 4.8 %2024-08: 4.9 %2024-09: 3.7 %2024-10: 4 %2024-11: 3.9 %2024-12: 3.7 %2025-01: 4.6 %2025-02: 4.7 %2025-03: 4.6 %2025-04: 4 %2025-05: 4.3 %2025-06: 4.6 %2025-07: 4.9 %2025-08: 5.1 %2025-09: 4 %2025-11: 3.7 %2025-12: 3.4 %2026-01: 4.5 %2026-02: 4.3 %2026-03: 4.2 %2026-04: 3.7 %2026-05: 3.6 %2026-06: 4 %2026-07: 4.2 %2026-08: 4.2 %234562021-072023-042025-012026-082021-07: 4.1 %2021-08: 4.2 %2021-09: 2.8 %2021-10: 3.3 %2021-11: 2.9 %2021-12: 3 %2022-01: 3.9 %2022-02: 3.9 %2022-03: 3.3 %2022-04: 2.2 %2022-05: 2.4 %2022-06: 2.8 %2022-07: 3 %2022-08: 3 %2022-09: 2.1 %2022-10: 2.8 %2022-11: 2.7 %2022-12: 2.6 %2023-01: 3.4 %2023-02: 3.6 %2023-03: 3.5 %2023-04: 3.5 %2023-05: 4 %2023-06: 4.2 %2023-07: 4.2 %2023-08: 4.1 %2023-09: 3.3 %2023-10: 3.8 %2023-11: 3.4 %2023-12: 3.5 %2024-01: 4.6 %2024-02: 4.2 %2024-03: 4 %2024-04: 3.3 %2024-05: 4.1 %2024-06: 4.3 %2024-07: 4.8 %2024-08: 4.9 %2024-09: 3.7 %2024-10: 4 %2024-11: 3.9 %2024-12: 3.7 %2025-01: 4.6 %2025-02: 4.7 %2025-03: 4.6 %2025-04: 4 %2025-05: 4.3 %2025-06: 4.6 %2025-07: 4.9 %2025-08: 5.1 %2025-09: 4 %2025-11: 3.7 %2025-12: 3.4 %2026-01: 4.5 %2026-02: 4.3 %2026-03: 4.2 %2026-04: 3.7 %2026-05: 3.6 %2026-06: 4 %2026-07: 4.2 %2026-08: 4.2 %
Unemployment rate, July 2021 to August 2026. %. Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics: unemployment rate by county, not seasonally adjusted.

Sources: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics: unemployment rate by county, not seasonally adjusted; U.S. Census Bureau, American Community Survey 5-year estimates, table B19013: median household income in the past 12 months; U.S. Bureau of Economic Analysis, CAINC1: county annual personal income summary, per capita personal income, current dollars, individual counties and county equivalents; U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE): percent of people of all ages in poverty, states and counties; U.S. Census Bureau, American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100). Labor market statistics and rankings

Economy

GDP (US dollars) in St. Clair County was $257.24 million in 2024, down 3% from 2023, and the 17th lowest of 115 counties in Missouri.

10015020025030020012005200920132017202120242001: 126.5 USD million2002: 128.4 USD million2003: 135.1 USD million2004: 145.6 USD million2005: 139.8 USD million2006: 138.4 USD million2007: 137.3 USD million2008: 136 USD million2009: 139.9 USD million2010: 152.7 USD million2011: 148 USD million2012: 153.5 USD million2013: 159.1 USD million2014: 165.4 USD million2015: 150 USD million2016: 145.8 USD million2017: 144.5 USD million2018: 156.5 USD million2019: 164.1 USD million2020: 169.4 USD million2021: 188.6 USD million2022: 215.3 USD million2023: 265.2 USD million2024: 257.2 USD million10015020025030020012009201720242001: 126.5 USD million2002: 128.4 USD million2003: 135.1 USD million2004: 145.6 USD million2005: 139.8 USD million2006: 138.4 USD million2007: 137.3 USD million2008: 136 USD million2009: 139.9 USD million2010: 152.7 USD million2011: 148 USD million2012: 153.5 USD million2013: 159.1 USD million2014: 165.4 USD million2015: 150 USD million2016: 145.8 USD million2017: 144.5 USD million2018: 156.5 USD million2019: 164.1 USD million2020: 169.4 USD million2021: 188.6 USD million2022: 215.3 USD million2023: 265.2 USD million2024: 257.2 USD million
Gross domestic product (GDP), US dollars, 2001 to 2024. USD million. Source: U.S. Bureau of Economic Analysis, CAGDP1: county GDP summary, current-dollar GDP (published in thousands of dollars, shown in millions).

Sources: U.S. Bureau of Economic Analysis, CAGDP1: county GDP summary, current-dollar GDP (published in thousands of dollars, shown in millions); Invokely, GDP in current dollars (BEA SAGDP2 and CAGDP1) divided by mid-year population (BEA SAINC1 and CAINC1); U.S. Bureau of Economic Analysis, CAGDP11: annual percent change in real GDP, all industry total, individual counties and county equivalents. Economy statistics and rankings

Prices and housing

Median home value in St. Clair County was $157,100 in 2024, up 10.2% from 2023, and the 39th lowest of 115 counties in Missouri.

110K120K130K140K150K160K20212022202320242021: 112,800 USD2022: 126,500 USD2023: 142,500 USD2024: 157,100 USD100K120K140K160K202120242021: 112,800 USD2022: 126,500 USD2023: 142,500 USD2024: 157,100 USD
Median home value, 2021 to 2024. USD. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units.

Sources: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units; Federal Housing Finance Agency, FHFA developmental all-transactions county house prices, published annual percent change, nominal, not seasonally adjusted; U.S. Census Bureau, American Community Survey 5-year estimates, table B25064: median gross rent (dollars), renter-occupied housing units paying cash rent; U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: owner-occupied housing units as a percentage of occupied housing units, calculated with stored inputs; U.S. Census Bureau, Building Permits Survey: final annual county estimates of new privately owned housing units authorized, including imputation. Housing statistics and rankings

Business and tourism

Employer firms in St. Clair County were 127 in 2023, down 3.1% from 2022, and tied for the 15th lowest of 115 counties in Missouri.

Establishment entry rate9.964%2023Up 1.48 percentage points from 2022The 58th highest of 115 counties in Missouri
Establishment exit rate12.1%2023Up 4.33 percentage points from 2022The 12th highest of 115 counties in Missouri
Job creation rate13.494%2023Up 0.18 percentage points from 2022
Farms6762022No 2021 figure to compare
12014016018020019992003200720112015201920231999: 156 count2000: 158 count2001: 154 count2002: 150 count2003: 152 count2004: 177 count2005: 181 count2006: 161 count2007: 158 count2008: 150 count2009: 139 count2010: 140 count2011: 139 count2012: 142 count2013: 158 count2014: 150 count2015: 165 count2016: 151 count2017: 136 count2018: 131 count2019: 139 count2020: 137 count2021: 130 count2022: 131 count2023: 127 count1201401601802001999200820231999: 156 count2000: 158 count2001: 154 count2002: 150 count2003: 152 count2004: 177 count2005: 181 count2006: 161 count2007: 158 count2008: 150 count2009: 139 count2010: 140 count2011: 139 count2012: 142 count2013: 158 count2014: 150 count2015: 165 count2016: 151 count2017: 136 count2018: 131 count2019: 139 count2020: 137 count2021: 130 count2022: 131 count2023: 127 count
Employer firms, 1999 to 2023. count. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties.

Sources: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties; U.S. Census Bureau, Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010; U.S. Census Bureau, Business Dynamics Statistics: establishment exit rate, all covered industries, nation and states from 1978, counties from 2010; U.S. Census Bureau, Business Dynamics Statistics: job creation rate, all covered industries, nation and states from 1978, counties from 2010; U.S. Department of Agriculture, National Agricultural Statistics Service, Census of Agriculture: number of farms, nation, states and counties (1997 to 2022). Companies statistics and rankings

Sources and citations

Each figure comes from the table cited here. Cite the publisher; these citations include any notice the publisher requires.

  1. U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.
  2. U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat. Retrieved 2026-10-08.
  3. U.S. Census Bureau. Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.
  4. U.S. Census Bureau. American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b05002.dat. Retrieved 2026-10-09.
  5. U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.
  6. U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
  7. U.S. Bureau of Labor Statistics. Local Area Unemployment Statistics: unemployment rate by county, not seasonally adjusted. https://download.bls.gov/pub/time.series/la/la.data.0.CurrentU25-29. Retrieved 2026-10-08.
  8. U.S. Census Bureau. American Community Survey 5-year estimates, table B19013: median household income in the past 12 months. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b19013.dat. Retrieved 2026-10-08.
  9. U.S. Bureau of Economic Analysis. CAINC1: county annual personal income summary, per capita personal income, current dollars, individual counties and county equivalents. https://apps.bea.gov/regional/zip/CAINC1.zip. Retrieved 2026-10-11.
  10. U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): percent of people of all ages in poverty, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2024/2024-state-and-county/est24all.txt. Retrieved 2026-10-08.
  11. U.S. Census Bureau. American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b19083.dat. Retrieved 2026-10-10.
  12. U.S. Bureau of Economic Analysis. CAGDP1: county GDP summary, current-dollar GDP (published in thousands of dollars, shown in millions). https://apps.bea.gov/regional/zip/CAGDP1.zip. Retrieved 2026-10-08.
  13. Invokely calculation from GDP in current dollars (BEA SAGDP2 and CAGDP1) divided by mid-year population (BEA SAINC1 and CAINC1). https://invokely.ai/docs/methodology#gdp_per_capita_usd. Retrieved 2026-10-09.
  14. U.S. Bureau of Economic Analysis. CAGDP11: annual percent change in real GDP, all industry total, individual counties and county equivalents. https://apps.bea.gov/regional/zip/CAGDP11.zip. Retrieved 2026-10-08.
  15. U.S. Census Bureau. American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25077.dat. Retrieved 2026-10-09.
  16. Federal Housing Finance Agency (FHFA). FHFA developmental all-transactions county house prices, published annual percent change, nominal, not seasonally adjusted. https://www.fhfa.gov/hpi/download/annual/hpi_at_county.xlsx. Retrieved 2026-10-10.
  17. U.S. Census Bureau. American Community Survey 5-year estimates, table B25064: median gross rent (dollars), renter-occupied housing units paying cash rent. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25064.dat. Retrieved 2026-10-09.
  18. U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: owner-occupied housing units as a percentage of occupied housing units, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Retrieved 2026-10-09.
  19. U.S. Census Bureau. Building Permits Survey: final annual county estimates of new privately owned housing units authorized, including imputation. https://www2.census.gov/econ/bps/County/co2025a.txt. Retrieved 2026-10-10.
  20. U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-11.
  21. U.S. Census Bureau. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-12.
  22. U.S. Census Bureau. Business Dynamics Statistics: establishment exit rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-12.
  23. U.S. Census Bureau. Business Dynamics Statistics: job creation rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-12.
  24. Source: USDA National Agricultural Statistics Service, Census of Agriculture. Census of Agriculture: number of farms, nation, states and counties (1997 to 2022). Retrieved through Data Commons (datacommons.org). https://www.nass.usda.gov/AgCensus/. Retrieved 2026-10-11. Retrieved through Data Commons (https://datacommons.org).

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