Washington County, Missouri
16 public bodies govern here, 4 school districts are based here, and USDA lists 1 farmers market. Everything below says where it came from.
In four numbers
- People
- 23,470
- Median household income
- $56,043
- ±6,053
- Unemployed
- 3.6%
- 352 of 9,677 in the labour force
- Homes with broadband
- 82.6%
- 7,371 of 8,920 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 Washington | 23,502 (2021) | 102 N Missouri St, Potosi | — |
Cities, towns and villages 4
| Name | People | Office | Website |
|---|---|---|---|
| City of Irondale | 371 (2021) | Po Box 53, Irondale | — |
| City of Potosi | 2,526 (2021) | 121 E High St, Potosi | — |
| Town of Mineral Point | 230 (2021) | Po Box 127, Mineral Point | — |
| Village of Caledonia | 133 (2021) | Po Box 100, Caledonia | — |
Special districts 11
| Name | What it does | Office | Website |
|---|---|---|---|
| Washington County Ambulance District | Health | 6900 Bill Gum Business Blvd, Mineral Point | — |
| Potosi City Housing Authority | Housing and community development | 103 W Citadel Dr, Potosi | — |
| Washington County Library | Libraries | 235 E High St, Potosi | Website |
| Caledonia Fire Protection District | Local fire protection | Po Box 30, Caledonia | — |
| Irondale Fire District | Local fire protection | Po Box 121, Irondale | — |
| Potosi Fire Protection District | Local fire protection | Po Box 338, Potosi | — |
| Richwoods Fire Protection District | Local fire protection | 10015 Turtle Rd, Richwoods | Website |
| Washington County Soil and Water Conservation District | Soil and water conservation | 103 N Missouri St, Potosi | — |
| Washington County Public Water Supply District 1 | Water supply utility | Po Box 650, Potosi | — |
| Washington County Public Water Supply District 2 | Water supply utility | Po Box 73, Belgrade | — |
| Washington County Public Water Supply District 4 | Water supply utility | 10264 Pine Dr, Bismarck | — |
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
KINGSTON K-14
School district4 schools
10047 DIAMOND RD, Cadet, MO, 63630
Its website — where its board posts meetings. Federal record.
POTOSI R-III
School district4 schools
400 North Mine, Potosi, MO, 63664
Its website — where its board posts meetings. Federal record.
RICHWOODS R-VII
School district1 schools
10788 STATE HWY A, Richwoods, MO, 63071
Its website — where its board posts meetings. Federal record.
VALLEY R-VI
School district2 schools
1 VIKING DR, Caledonia, MO, 63631
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
Washington County Farmers' Market
520 Purcell Dr., Potosi, MO, 63664
Gathered by USDA from the web; USDA record last changed 2023-03-27. USDA listing
USDA National Farmers Market Directory; read 2026-09-26.