Washington County

Washington County is an administrative division in southeastern Missouri that encompasses multiple municipalities, with Potosi serving as the county seat. The county includes several towns and unincorporated areas distributed across its territory.

French explorers first entered the region in 1722, which eventually led to the development of mining operations in the area. Permanent settlement began in 1763 when French colonists established communities in the territory.

The county maintains multiple educational institutions, including Kingston K-XIV, Potosi R-III, and Richwoods R-VII school districts serving local communities throughout the region.

The County Courthouse in Potosi serves as the central location for government services and administrative matters. Visitors can find essential county offices and resources at this location.

The area contains natural sites such as Big River Access and Council Bluff Lake where visitors can enjoy water-based recreation. Buford Mountain also provides additional opportunities for outdoor activities.

Location: Missouri

Inception: 1813

Capital city: Potosi

Shares border with: Franklin County, Jefferson County, St. Francois County, Iron County, Crawford County

Website: http://washingtoncountymo.us

GPS coordinates: 37.97000,-90.88000

Latest update: December 7, 2025 19:25