St. Charles County, Missouri
63 public bodies govern here, 5 school districts are based here, and USDA lists 2 farmers markets. Everything below says where it came from.
In four numbers
- People
- 414,535
- Median household income
- $104,692
- ±1,179
- Unemployed
- 2.9%
- 6,752 of 230,817 in the labour force
- Homes with broadband
- 95.1%
- 153,405 of 161,311 households
U.S. Census Bureau, American Community Survey 5-year estimates 2020-2024; read 2026-09-26. Percentages worked out here from the two counts shown.
Who governs here
County government 1
| Name | People | Office | Website |
|---|---|---|---|
| County of St Charles | 409,981 (2021) | 100 N 3rd Street, Saint Charles | Website |
Cities, towns and villages 17
| Name | People | Office | Website |
|---|---|---|---|
| City of Cottleville | 5,761 (2021) | 5490 5th St, Cottleville | Website |
| City of Dardenne Prairie | 12,933 (2021) | 2032 Hanley Rd, O Fallon | Website |
| City of Flint Hill | 832 (2021) | Po Box 196, Flinthill | Website |
| City of Foristell | 567 (2021) | 121 Mulberry St, Foristell | Website |
| City of Lake Saint Louis | 17,311 (2021) | 200 Civic Center Dr, Lake St Louis | Website |
| City of New Melle | 538 (2021) | Po Box 114, New Melle | Website |
| City of O'Fallon | 93,644 (2021) | 100 N Main St, O Fallon | Website |
| City of Portage Des Sioux | 328 (2021) | Po Box 108, Portage Des Sioux | — |
| City of St Charles | 70,820 (2021) | 200 N 2nd St, Saint Charles | Website |
| City of St Paul | 3,301 (2021) | 2300 Saint Paul Rd, Saint Paul | Website |
| City of St Peters | 58,129 (2021) | Po Box 9, Saint Peters | Website |
| City of Weldon Spring | 5,304 (2021) | 5401 Independence Rd, Weldon Spring | Website |
| City of Wentzville | 45,452 (2021) | 200 W 4th St, Wentzville | Website |
| Town of Augusta | 267 (2021) | Po Box 42, Augusta | Website |
| Town of Weldon Spring Heights | 92 (2021) | 32 Weldon Spring Heights Dr, Saint Charles | — |
| Town of West Alton | 356 (2021) | Po Box 42, West Alton | — |
| Village of Josephville | 516 (2021) | 1010 Kersting Rd, Wentzville | — |
Special districts 45
| Name | What it does | Office | Website |
|---|---|---|---|
| Dardenne Creek Drainage District 3 | Drainage | 505 Iffrig Rd, Saint Peters | — |
| Hancock Bottoms Drainage District | Drainage | 5234 Hwy T, Augusta | — |
| St Peters Drainage District | Drainage | 1360 Silvers Rd, Saint Peters | — |
| Darst Bottom Levee District | Flood control | Po Box 61, Defiance | — |
| Lakeside 370 Levee District | Flood control | 190 Carondelet Plz, Saint Louis | — |
| North County Levee District | Flood control | 5560 Barwise Rd, Saint Charles | — |
| St Charles County Ambulance Service | Health | 4169 Old Mill Pkwy, Saint Peters | — |
| Barathaven Transportation Development District | Highways | 1001 Boardwalk Springs Pl, O Fallon | — |
| Boscherts Landing Transportation Development District | Highways | 190 Carondelet Plz, Saint Louis | — |
| Dardenne Town Square Transportation Development District | Highways | 1001 Boardwalk Springs Pl, O Fallon | — |
| First Capitol Drive Tdd | Highways | 1001 Boardwalk Springs Pl, O Fallon | — |
| Hawk Ridge Transportation Development District | Highways | 1001 Boardwalk Springs Pl, O Fallon | — |
| Hutchings Farm Plaza Transportation Development District | Highways | Po Box 82, Cottleville | — |
| Kingsmill Transportation Development District | Highways | 14151 Clayton Rd, Chesterfield | — |
| Mark Twain Mall Transportation Development District | Highways | 7700 Forsyth Blvd. Suite 1800, Saint Louis | — |
| Megan Shoppes Transportation Development District | Highways | 1001 Boardwalk Springs Pl, O Fallon | — |
| Mexico Road Transportation Development District | Highways | 505 N 7th St, Saint Louis | — |
| Mid Rivers-N Transportation Development District | Highways | 1001 Boardwalk Springs Pl, O Fallon | — |
| Salt Lick Road Transportation Development District | Highways | 16690 Swingley Ridge Rd, Chesterfield | — |
| South Ridge Tdd | Highways | 1001 Boardwalk Springs PL., O'Fallon | — |
| St Charles Riverfront Transportation Development District | Highways | 200 N 2nd St, Saint Charles | — |
| Wentzville Commons Connector Tdd | Highways | 7700 Forsyth Blvd., ST. Louis | — |
| Wentzville II Transportation Development District | Highways | 7700 Forsyth Blvd, Saint Louis | — |
| Wentzville Industrial Tdd | Highways | 190 Carondelet Plaza, ST. Louis | — |
| Wentzville Parkway I Transportation Development District | Highways | 1001 Boardwalk Springs Pl, O Fallon | — |
| Wentzville Three Trans Dev Dist | Highways | 7700 Forsyth Blvd, Saint Louis | — |
| Wentzville Transportation Development District | Highways | 7700 Forsyth Blvd, Saint Louis | — |
| Winghaven Transportation Development District | Highways | 1001 Boardwalk Springs Pl, O Fallon | — |
| St Charles County Housing Authority | Housing and community development | 100 N 3rd St, Saint Charles | — |
| St Charles Housing Authority | Housing and community development | 1041 Olive St, Saint Charles | — |
| St Charles City/County Library District | Libraries | Po Box 529, Saint Peters | Website |
| Augusta Fire Protection District | Local fire protection | 5266 Hackmann Rd, Augusta | — |
| Central County Fire and Rescue | Local fire protection | 1 Timberbrook Dr, Saint Peters | — |
| Cottleville Fire Protectection District | Local fire protection | 1385 Motherhead Rd, Saint Charles | Website |
| Lake St Louis Fire Protection District | Local fire protection | 1815 Lake Saint Louis Boulevard, Lake St Louis | Website |
| New Melle Fire Protection District | Local fire protection | 3705 Mill Street P.o. Box 27, New Melle | Website |
| O'Fallon Fire Protection Dist | Local fire protection | 111 Laura K Dr, O Fallon | Website |
| Orchard Farm Fire Protection District | Local fire protection | 5045 N Highway 94, Saint Charles | Website |
| Rivers Pointe Fire Protection District | Local fire protection | 100 Firehouse Dr, West Alton | — |
| Wentzville Fire Protection District | Local fire protection | 209 W Pearce Blvd, Wentzville | Website |
| St Charles County Convention and Sports Facilities Authority | Parks and recreation | Po Box 858, Saint Charles | — |
| The New Town at St Charles Theatre and Cultural Arts District | Parks and recreation | 3333 Rue Royale St, Saint Charles | — |
| Duckett Cr Sewer District | Sewerage | 3550 Highway K, O Fallon | Website |
| St Charles County Public Water Supply District 2 | Sewerage and water supply | Po Box 967, O Fallon | Website |
| St Charles County Soil and Water Conservation District | Soil and water conservation | 160 Saint Peters Centre Blvd, Saint Peters | Website |
U.S. Census Bureau, 2022 Census of Governments, Government Units List (published August 2023); the file read 2026-09-26. Offices are placed by county; a special district’s territory can cross county lines. Each body posts its own meetings on its website where the Census records one.
School districts based here
FORT ZUMWALT SCHOOL DISTRICT
School district27 schools
555 E. TERRA LANE, O'Fallon, MO, 63366
Its website — where its board posts meetings. Federal record.
FRANCIS HOWELL R-III
School district23 schools
801 CORPORATE CENTRE DRIVE, O'Fallon, MO, 63368
Its website — where its board posts meetings. Federal record.
ORCHARD FARM R-V
School district5 schools
3489 Boschertown Rd, Saint Charles, MO, 63301
Its website — where its board posts meetings. Federal record.
ST. CHARLES R-VI
School district12 schools
400 N SIXTH STREET, St Charles, MO, 63301
Its website — where its board posts meetings. Federal record.
WENTZVILLE R-IV
School district21 schools
280 INTERSTATE DRIVE, Wentzville, MO, 63385
Its website — where its board posts meetings. Federal record.
National Center for Education Statistics, Common Core of Data 2024-25; read 2026-09-26.
Farmers markets
St. Charles Lions Club Farmers Market
300 North Riverside Drive St. Charles, MO, 63301
Gathered by USDA from the web; USDA record last changed 2023-03-27. USDA listing
Chandler Hill Farmers' Market
596 Defiance Rd., Chandler Hill Vineyards, Defiance, MO, 63341
Gathered by USDA from the web; USDA record last changed 2023-03-27. USDA listing
USDA National Farmers Market Directory; read 2026-09-26.