South Sioux Falls, South Dakota

[1] South Sioux Falls was founded in early 1888 on 4 acres (16,000 m2) of land donated by lawyer and congressman Richard F. Pettigrew and S. L. Tate for the Norwegian Lutheran Normal School (now Augustana College).

Pettigrew had envisioned an industrial suburb and funded construction of a railroad to Pierre and a six-story packing plant, which were both never fully realized.

[4] The city had approximately 1,600 people at the time of the 1950 census, making it the third largest settlement in South Dakota.

[5] The state legislature repealed the ban in 1951, allowing for studies into consolidation to commence.

[7] A second attempt was made in 1955, with terms agreed by the two city governments to take over the debts of South Sioux Falls and combine school districts.

1955 map of proposed Interstate routes, showing South Sioux Falls as an independent city