THE WASHINGTON COUNTY LAND BRIEF
Land in the
Meramec River Hills setting.
Washington County has 759.9 square miles of land in Missouri. 2 mapped landscape regions meet across Washington County: Meramec River Hills, St. Francois Knobs and Basins.
Wooded uplands over limestone, dolomite and sandstone characterize the Ozarks. Springs, caves and spring-fed streams are widespread regional features within a landscape of uneven plateaus and valleys.
Regional context: Ozark Highlands ↗ · Regional mapping across the county footprint
Where the landscape changes
Washington County intersects 2 mapped regional units. The largest mapped shares are:
- Meramec River Hills88.1%
- St. Francois Knobs and Basins11.9%
Finding your parcel within Washington County
The atlas lists 5 cities, towns, townships, and Census communities associated with Washington County, including Terre du Lac, Potosi, Irondale. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Washington County by land and water
The Census records 2.62 square miles of water within Washington County, or 0.3% of its total area. That share is close to Washington County’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Washington County has 326.4 times the land area of nearby Potosi city (2.33 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Crawford County, Franklin County, Iron County, Jefferson County, St. Francois County within Missouri. A tract near one of these lines should be matched to the county identifier on its own records.