THE WEST ALTON LAND BRIEF
Land in the
Middle Mississippi Alluvial Plain setting.
West Alton city has 28.8 square miles of land in St. Charles County. Its Census reference point is in Middle Mississippi Alluvial Plain, 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
West Alton and St. Charles County
West Alton is associated with St. Charles 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.
West Alton by land and water
The Census records 8.42 square miles of water within West Alton, or 22.6% of its total area. It is 17.2 percentage points higher than the 5.4% recorded for St. Charles County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, West Alton city has 1.9 times the land area of nearby Old Jamestown CDP (14.9 square miles). These areas describe boundaries, not comparable property prices.

