Rockham is a town in Faulk County, South Dakota, United States, off U.S. Route 212, and was a stop on the old Chicago and North Western Railway.

[8] The Chicago & North Western Railway constructed a rail line from Redfield to Faulkton in 1886.

[9] Rockham was founded as a stop on the railway that year, in 1886 on land originally homesteaded by Anders Opperud, and was incorporated on March 4, 1909.

Rockham received its first telephone service in 1903 and electrical power was distributed throughout the city in 1919.

[11] In 1970, the Chicago & North Western Railway abandoned its rail line from Redfield to Gettysburg, leaving Rockham without rail service for hauling grain.

According to the United States Census Bureau, the town has a total area of 0.50 square miles (1.29 km2), all land.

38.5% of all households were made up of individuals, and 15.4% had someone living alone who was 65 years of age or older.

22.2% of all households were made up of individuals, and 5.6% had someone living alone who was 65 years of age or older.