The Ohio River
- The Ohio River is 981 miles long, starting at the confluence of the Allegheny and the Monongahela Rivers in Pittsburgh, Pennsylvania, and ending in Cairo, Illinois, where it flows into the Mississippi River.
- The Ohio River flows through or borders six states: Illinois, Indiana, Kentucky, Ohio, Pennsylvania, and West Virginia. In addition, water from parts of New York, Virginia, North Carolina, Tennessee and Alabama drain into tributaries that empty into the Ohio.
- The Ohio River is the source of drinking water for more than three million people.
- Over 25 million people, almost 10% of the US population, live in the Ohio River Basin.