ABERDEEN, a city of north-eastern Mississippi, U.S.A., at the head of navigation on the Tombigbee river; the county seat of Monroe county. It is south-east of Memphis, Tennessee (about 137 miles away). It is on Federal highway 45, and is served by the Frisco, the Illinois Central and the Mobile and Ohio railways. The population in 1920 was 4,071 (52% negroes), and was 3,925 in 1930 by the Federal census. Formerly the cotton trade was the principal business. Aberdeen has a large trade in cotton, cotton seed and its products, cattle, feed, pelts, hides, wool, lumber, hardware and machinery. The dairy industry and truck-farming are developing rapidly. Two gas wells were "brought in" near by in 1927. The city was founded about and incorporated in 1837.