The Apalachicola-Chatta hoochee-Flint (ACF) River Basin covers about 20,500 square miles that drains parts of Alabama, Florida, and Georgia. The basin extends from its headwaters northern Georgia to the Gulf of Mexico. Population in the basin was estimated to be 3.7 million in 2005, an increase of about 41 percent from the 1990 popula-tion of 2.6 million. In 2005, slightly more than 721,000 acres of crops were irrigated within the basin.