Census › Missouri › Franklin County › St. Clair
St. Clair city, Missouri
| Population | 4,789 | B01003 |
|---|---|---|
| Population, 2020 census | 4,791 | P1 |
| Median age | 37.6 | B01002 |
| Under 18 | 21.1% | B01001 |
| 65 and over | 16.2% | B01001 |
| Households | 2,034 | B11001 |
| Foreign born | 5.7% | B05002 |
| Median household income | $41,820 | B19013 |
|---|---|---|
| Median family income | $43,056 | B19113 |
| Per capita income | $25,135 | B19301 |
| Poverty rate | 15.1% | B17001 |
| Unemployment rate | 9.8% | B23025 |
| Civilian labor force | 2,285 | B23025 |
| Mean commute (minutes) | 29.4 | B08013 |
| Bachelor's degree or higher | 9.5% | B15003 |
|---|
| Housing units | 2,233 | B25001 |
|---|---|---|
| Owner-occupied | 56.0% | B25003 |
| Renters | 44.0% | B25003 |
| Median home value | $157,700 | B25077 |
| Median gross rent | $1,011 | B25064 |
| White, not Hispanic | 89.6% | B03002 |
|---|---|---|
| Black | 0.6% | B03002 |
| Hispanic or Latino | 2.4% | B03002 |
| Asian | 0.3% | B03002 |
| American Indian and Alaska Native | 0.0% | B03002 |
Figures from the 2020-2024 American Community Survey five-year estimates (table codes link to the same table for this area at data.census.gov) and the 2020 census (P1), via IPUMS NHGIS. Estimates for small areas carry wide margins of error; a tract's figures describe its residents, not any one organization.
Against the county: median household income here is 57% of Franklin County's ($73,165); poverty 15.1% against 8.2%.
Map
Click an area for its page. Circles are FURP records at their ZIP code's center point, sized by how many. Download this map's areas with their census figures: CSV (center points) · GeoJSON (outlines), ready for Datawrapper, Mapshaper or Google My Maps. Outlines: Census TIGER/Line 2026, simplified.
FURP records in St. Clair, MO
| Records | How many | Total | Biggest |
|---|---|---|---|
| Nonprofits | 71 | $9,464,074 revenue (latest return) | DEVELOPMENTAL SERVICES OF FRANKLIN COUNTY INC ($7,869,405) |
| Form 5500 plan sponsors | 31 | 39 plans | FARMERS AND MERCHANTS BANK (4) |
| Open Payments recipients | 9 | $34,716 industry payments | PATRICK J ROSE ($18,682) |
| Food recall firms | 1 | 1 recalls | Plaze Inc (1) |
| Patent and trademark owners | 20 | 117 patents and marks | E-Z Products LLC (49) |
| Federal award recipients | 474 | $3,792,546 federal awards | ST CLAIR CITY HALL ($646,803) |
| State business registrations | 36 | AJ SEAMLESS GUTTERING LLC |
Cross-reference: 71 nonprofits for 4,789 residents is 148.3 per 10,000 people; their latest-year revenue of $9,464,074 is $1,976 per resident, 11.1% of all household income here (households at the median income).
Nonprofits: biggest by revenue (latest return)
- DEVELOPMENTAL SERVICES OF FRANKLIN COUNTY INC Saint Clair, MO · $7,869,405
- ST CLAIR AREA CHAMBER OF COMMERCE Saint Clair, MO · $419,665
- GREATER ST CLAIR HOMES INC St Clair, MO · $294,186
- NORTH AMERICAN ARTIST FOUNDATION Saint Clair, MO · $288,883
- AMERICAN LEGION Saint Clair, MO · $193,935
- BENEVOLENT & PROTECTIVE ORDER OF ELKS OF THE USA Saint Clair, MO · $192,466
- VETERANS OF FOREIGN WARS DEPT OF MISSOURI Saint Clair, MO · $103,686
- FAMILY PLANNING CLINIC OF St Clair, MO · $59,886
- ST CLAIR AREA CHAMBER FOUNDATION Saint Clair, MO · $26,923
- ST CLAIR BAND BOOSTERS Saint Clair, MO · $8,421
Form 5500 plan sponsors: biggest by plans
- FARMERS AND MERCHANTS BANK St. Clair, MO · 4
- ATRO ENGINEERED SYSTEMS, INC. St. Clair, MO · 2
- JAMES L. BUNGE, D.D.S. St. Clair, MO · 2
- PERFORMANCE ENGINEERING & MANUFACTURING LLC Saint Clair, MO · 2
- RICHANDSUSAN LLC Saint Clair, MO · 2
- STEELWELD EQUIPMENT CO., INC Saint Clair, MO · 2
- AF CHAPMAN CORPORATION Saint Clair, MO · 1
- AJ SEAMLESS GUTTERING LLC Saint Clair, MO · 1
- ATRO LLC Saint Clair, MO · 1
- BALANCED SOLUTIONS HEALTHCARE Saint Clair, MO · 1
Open Payments recipients: biggest by industry payments
- PATRICK J ROSE Saint Clair, MO · $18,682
- REBEKAH SUEZANN HELMIG Saint Clair, MO · $12,406
- CHARLES DEAN BLACKBURN Saint Clair, MO · $1,798
- PHILLIP BUCKLEY Saint Clair, MO · $799
- YUNUS EMRE DEMIRHAN Saint Clair, MO · $467
- ROSE GLASTETTER Saint Clair, MO · $268
- DENNIS MC COY Saint Clair, MO · $175
- BARTON J COLEMAN Saint Clair, MO · $91
- JONAH MICHAEL PFEIFFER Saint Clair, MO · $30
Food recall firms: biggest by recalls
- Plaze Inc Saint Clair, MO · 1
Patent and trademark owners: biggest by patents and marks
- E-Z Products LLC St. Clair, MO · 49
- Gutter Guard Systems, Inc. St. Clair, MO · 12
- PLZ Aeroscience Corporation St. Clair, MO · 11
- PAR-WAY GROUP St. Clair, MO · 10
- Thermasi LLC St. Clair, MO · 7
- Ace Case Manufacturing, LLC St. Clair, MO · 4
- Letha, LTD. St. Clair, MO · 4
- DynaQuip Controls Corporation St. Clair, MO · 3
- SPRAY DYNAMICS, LTD. St. Clair, MO · 3
- Performance Engineering And Manufacturing, LLC Saint Clair, MO · 2
Federal award recipients: biggest by federal awards
- ST CLAIR CITY HALL St. Clair, MO · $646,803
- ST CLAIR SENIOR APARTMENTS LP Saint Clair, MO · $516,331
- EBW GRAY LLC Saint Clair, MO · $478,374
- GREATER ST CLAIR Saint Clair, MO · $269,219
- COSMOTOLOGY COLLEGE OF FRANKLIN COUNTY Saint Clair, MO · $241,547
- JONES STREET Saint Clair, MO · $200,663
- JONES STREET APTS Saint Clair, MO · $155,653
- VINE STREET Saint Clair, MO · $113,796
- JERRONS LLC Saint Clair, MO · $110,839
- MIDWEST HYDRO DRILLING & SERVICE, INC Saint Clair, MO · $76,606
Census figures are from IPUMS NHGIS: the American Community Survey 2020-2024 five-year estimates (ACS table codes shown with each figure) and the 2020 decennial census (Demographic and Housing Characteristics), by state, county, place and census tract. FURP records are placed by ZIP code (the Census Bureau's 2020 ZCTA-to-county and ZCTA-to-tract relationship files: the county or tract holding most of the ZIP's land) and by city name (Census place names, normalized), so a record's tract is its ZIP's main tract, not its street's. Cite: Jonathan Schroeder, David Van Riper, Steven Manson, Grace Cooper, Zachary Krause, Tracy Kugler, Tsu Zhu, and Steven Ruggles. IPUMS National Historical Geographic Information System: Version 21.0 [dataset]. Minneapolis, MN: IPUMS. 2026. http://doi.org/10.18128/D050.V21.0