THE ST. MARY LAND BRIEF
Land in the
River Hills setting.
St. Mary city has 0.6 square miles of land in Ste. Genevieve County. Its Census reference point is in River Hills, within Interior River Valleys and Hills.
Broad terraced river valleys contrast with wooded slopes and dissected glacial plains. Bottomland settings and upland oak landscapes occur close together across the Interior River Valleys and Hills.
Regional context: Interior River Valleys and Hills ↗ · Classification at the Census reference point
St. Mary and Ste. Genevieve County
St. Mary is associated with Ste. Genevieve County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
St. Mary by land and water
The Census records 0.01 square miles of water within St. Mary, or 1.6% of its total area. It is 0.1 percentage points higher than the 1.5% recorded for Ste. Genevieve County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, St. Mary city has 77.8% of the land area of nearby Lithium CDP (0.77 square miles). These areas describe boundaries, not comparable property prices.

