St. Louis County, Missouri
St. Louis County, Missouri, had an estimated population of 990,911 in 2025 across 1,317 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Missouri's counties and nationally.
- Population
- 990,911
- 2025 estimate
- Area
- 1,317 km²
- Density
- 752
- per km²
- Median income
- $82,936
- household, ACS 2024
- Median age
- 40.3
- years, ACS 2024
How Missouri's counties spread
Amenities & Infrastructure
| Indicator | Value | In Missouri | In the US |
|---|---|---|---|
| Households with Broadband2024 | 93.4% | 2 / 115 | 207 / 3,144 |
| Median Gross Rent2024 | $1,209 | 4 / 115 | 523 / 3,137 |
| Median Home Value2024 | $276,800 | 5 / 115 | 745 / 3,139 |
| Owner-Occupied Homes2024 | 69.2% | 88 / 115 | 2,324 / 3,144 |
| Vacant Homes2024 | 7.2% | 103 / 115 | 2,645 / 3,144 |
Demography
| Indicator | Value | In Missouri | In the US |
|---|---|---|---|
| Aged 65 and Over2024 | 19.1% | 71 / 115 | 1,820 / 3,144 |
| American Indian & Alaska Native2024 | 0.1% | 66 / 115 | 1,566 / 3,144 |
| Asian, non-Hispanic2024 | 4.9% | 1 / 115 | 190 / 3,144 |
| Average Household Size2024people | 2.4 | 94 / 115 | 1,980 / 3,144 |
| Black, non-Hispanic2024 | 24.0% | 3 / 115 | 387 / 3,144 |
| Foreign-Born2024 | 8.4% | 3 / 115 | 525 / 3,144 |
| Hispanic or Latino2024 | 3.9% | 25 / 115 | 1,881 / 3,144 |
| Median Age2024years | 40.3 | 67 / 115 | 1,938 / 3,144 |
| Sex Ratio2024per 1,000 males | 1,090 | 4 / 115 | 183 / 3,144 |
| Speak a Language Other Than English2024 | 10.5% | 7 / 115 | 870 / 3,144 |
| Under 182024 | 22.0% | 78 / 115 | 1,479 / 3,144 |
| Veterans2024 | 6.0% | 105 / 115 | 2,329 / 3,144 |
| White, non-Hispanic2024 | 61.4% | 113 / 115 | 2,372 / 3,144 |
Economy
| Indicator | Value | In Missouri | In the US |
|---|---|---|---|
| Below Poverty Line2024 | 9.8% | 97 / 115 | 2,383 / 3,144 |
| Households on SNAP2024 | 8.0% | 84 / 115 | 2,321 / 3,144 |
| Income Inequality2024index | 0.494 | 10 / 115 | 321 / 3,144 |
| Median Household Income2024 | $82,936 | 7 / 115 | 487 / 3,143 |
| Per Capita Income2024 | $51,977 | 1 / 115 | 184 / 3,144 |
| Unemployment Rate2024 | 4.3% | 35 / 115 | 1,627 / 3,144 |
Education
| Indicator | Value | In Missouri | In the US |
|---|---|---|---|
| Bachelor's Degree or Higher2024 | 47.4% | 2 / 115 | 130 / 3,144 |
| High School or Higher2024 | 94.5% | 8 / 115 | 365 / 3,144 |
Health Coverage
| Indicator | Value | In Missouri | In the US |
|---|---|---|---|
| No Health Insurance2024 | 5.7% | 107 / 115 | 2,250 / 3,144 |
| With a Disability2024 | 12.1% | 111 / 115 | 2,644 / 3,144 |
Population & Density
| Indicator | Value | In Missouri | In the US |
|---|---|---|---|
| Population2025 | 990,911 | 1 / 115 | 53 / 3,144 |
| Population Density2025/km² | 752 | 2 / 115 | 75 / 3,144 |
Work & Commute
| Indicator | Value | In Missouri | In the US |
|---|---|---|---|
| Commute by Public Transit2024 | 1.4% | 3 / 115 | 271 / 3,144 |
| Households with No Vehicle2024 | 6.6% | 34 / 115 | 955 / 3,144 |
| Mean Commute Time2024minutes | 23.1 | 65 / 115 | 1,801 / 3,143 |
| Work from Home2024 | 18.3% | 3 / 115 | 202 / 3,144 |
Other counties of Missouri
- Adair County
- Andrew County
- Atchison County
- Audrain County
- Barry County
- Barton County
- Bates County
- Benton County
- Bollinger County
- Boone County
- Buchanan County
- Butler County
- Caldwell County
- Callaway County
- Camden County
- Cape Girardeau County
- Carroll County
- Carter County
- Cass County
- Cedar County
- Chariton County
- Christian County
- Clark County
- Clay County
- Clinton County
- Cole County
- Cooper County
- Crawford County
- Dade County
- Dallas County
- Daviess County
- DeKalb County
- Dent County
- Douglas County
- Dunklin County
- Franklin County
- Gasconade County
- Gentry County
- Greene County
- Grundy County
- Harrison County
- Henry County
- Hickory County
- Holt County
- Howard County
- Howell County
- Iron County
- Jackson County
- Jasper County
- Jefferson County
- Johnson County
- Knox County
- Laclede County
- Lafayette County
- Lawrence County
- Lewis County
- Lincoln County
- Linn County
- Livingston County
- Macon County
- Madison County
- Maries County
- Marion County
- McDonald County
- Mercer County
- Miller County
- Mississippi County
- Moniteau County
- Monroe County
- Montgomery County
- Morgan County
- New Madrid County
- Newton County
- Nodaway County
- Oregon County
- Osage County
- Ozark County
- Pemiscot County
- Perry County
- Pettis County
- Phelps County
- Pike County
- Platte County
- Polk County
- Pulaski County
- Putnam County
- Ralls County
- Randolph County
- Ray County
- Reynolds County
- Ripley County
- Saline County
- Schuyler County
- Scotland County
- Scott County
- Shannon County
- Shelby County
- St. Charles County
- St. Clair County
- St. Francois County
- St. Louis city
- Ste. Genevieve County
- Stoddard County
- Stone County
- Sullivan County
- Taney County
- Texas County
- Vernon County
- Warren County
- Washington County
- Wayne County
- Webster County
- Worth County
- Wright County
Compare St. Louis County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.