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About the Mercer County, Ohio outline, lakes, and rivers map
Customize this Mercer County, Ohio outline, lakes, and rivers map with water features including Grand Lake-Saint Marys and rivers. Style the border, water, and background independently to match your project.
Export the finished Mercer County, Ohio map as SVG, PNG, or PDF for presentations, reports, websites, classroom materials, or print.

Map facts
- Geography
- Mercer is represented as a county in Ohio.
- Administrative hierarchy
- North America → Ohio → Mercer
- Map extent
- Longitude -84.8103° to -84.4344°; latitude 40.3518° to 40.7282°
- Water features
- 1 named lake and river geometry included
- Source
- Natural Earth base geography, modified by CustomAtlas
