Fifty years ago, Sioux Falls was the biggest city in South Dakota. But compared to 2025, the population then was more like Fargo or Cedar Rapids today, about 140,000 people.
Sioux Falls in 1975: A Smaller City
That’s quite a difference from the nearly quarter of a million people that call Sioux Falls and the surrounding area home.
RELATED: Half of South Dakota’s Population Now Lives in Sioux Falls and Rapid City
Half a century ago, in 1975, Sioux Falls was still the major urban center for the area, if only a bit smaller. The city limits at the time were 57th Street in the south, AKA the Minnehaha/Lincoln County boundary…