Eufaula is a city in and the county seat of McIntosh County, Oklahoma, United States. The population was 2,813 at the 2010 census, an increase of 6.6 percent from 2,639 in 2000. Eufaula is in the southern part of the county, 30 miles north of McAlester and 32 miles south of Muskogee. The name "Eufaula" comes from the Eufaula tribe, part of the Musogee Creek confederacy.