Ohio River Map
The Ohio River is a 1,580 km (981 mi) river in the United States. This map shows its course from the Allegheny River to the Mississippi River on shaded relief, with its river network, lakes, borders and major cities.
How to read this map
The Ohio River is about 1,580 km (981 mi) long and drains a basin of about 528,000 km² (204,000 sq mi). Its average discharge is about 7,970 m³/s (282,000 cu ft/s). It rises at the Allegheny River and flows into the Mississippi River. It flows through or along Ohio, Kentucky, Illinois, West Virginia and Pennsylvania. Tributaries include Guyandotte River, Kanawha River, Kentucky River, Cumberland River, Tennessee River, Wabash River, Sandy Creek and Scioto River.
The highlighted blue line is the course of the Ohio River as mapped by Natural Earth. Towns and cities on the map include St. Louis, Cleveland, Pittsburgh, Cincinnati, Indianapolis, Columbus, Louisville and Nashville. Labeled states and countries: Ohio, Pennsylvania, Virginia, Illinois, Kentucky, West Virginia and Indiana.
Greens show lower elevations; tan and brown show higher land, with pale tones toward the highest terrain. Shadows emphasize the slopes, and vertical relief is exaggerated so landforms are easier to read. Dashed lines show country borders, and fine dashed lines show state or province borders.
The relief uses Terrain Tiles (SRTM, GMTED2010 and ETOPO1 elevation data). Rivers, lakes, borders and the course of the Ohio River come from Natural Earth, and the figures on this page from Wikidata. Natural Earth draws features at a small scale, so the line is a guide to where the Ohio River is, not a surveyed boundary.
Blank physical map
The blank version keeps the mapped features and removes the place labels. Download it for a geography worksheet or practice identifying the features.
Ohio River facts
| Fact | Value |
|---|---|
| Length | 1,580 km (981 mi) |
| Drainage basin | 528,000 km² (204,000 sq mi) |
| Average discharge | 7,970 m³/s (282,000 cu ft/s) |
| Source | the Allegheny River |
| Mouth | the Mississippi River |
| Countries | the United States |
| US states | Ohio, Kentucky, Illinois, West Virginia and Pennsylvania |
| Tributaries | Guyandotte River, Kanawha River, Kentucky River, Cumberland River, Tennessee River, Wabash River, Sandy Creek, Scioto River, Great Miami River and Little Miami River |
Data sources and license
- Natural Earth (public-domain geography): Public domain.
- Terrain Tiles / Mapzen (SRTM, GMTED2010, ETOPO1): Open elevation data; source attribution retained.
- Wikidata (lengths, areas, countries and other facts): CC0 1.0.
Map design and rendered images: Atlas of Maps, CC BY 4.0. Source databases retain their own licenses; the map license does not replace them.
Maps of the countries: United States. Compare with the world rivers map.
Frequently asked questions
How long is the Ohio River?
The Ohio River is about 1,580 km (981 mi) long, with a drainage basin of about 528,000 km² (204,000 sq mi).
Where does the Ohio River start and end?
The Ohio River rises at the Allegheny River and flows into the Mississippi River.
Which states does the Ohio River flow through?
The Ohio River flows through or along Ohio, Kentucky, Illinois, West Virginia and Pennsylvania.
Can I download a blank map of the Ohio River?
Yes. The blank version keeps the relief, rivers and borders and the highlighted river but removes the place names. Both versions are free to download as PNG and as an A4 PDF.
Use this map
You can download, print and share this map for free, in class, in school projects, in presentations and on websites, as long as you credit the source: Ohio River Map · Atlas of Maps (atlasofmaps.com), license CC BY 4.0.
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