THE MERCER COUNTY LAND BRIEF
Land in the
Loess Flats and Till Plains setting.
Mercer County has 453.8 square miles of land in Missouri. The mapped landscape region in Mercer County is Loess Flats and Till Plains.
Irregular plains form a transition between northern agricultural country and more wooded uplands to the south and east. Grassland and forest historically mixed, with wider woodland belts beside streams.
Regional context: Central Irregular Plains ↗ · Regional mapping across the county footprint
Finding your parcel within Mercer County
The atlas lists 13 cities, towns, townships, and Census communities associated with Mercer County, including Lindley, Ravanna, Washington. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Mercer County by land and water
The Census records 1.28 square miles of water within Mercer County, or 0.3% of its total area. That share is close to Mercer County’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Mercer County has 8.8 times the land area of nearby Morgan township (51.5 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Grundy County, Harrison County, Putnam County, Sullivan County within Missouri. A tract near one of these lines should be matched to the county identifier on its own records.

