Peterson is a city in Clay County, Iowa, United States. The population was 322 in the 2020 census, a decline from 372 in 2000.
Peterson, Iowa
Blockhouse built as part of Fort Peterson, 1862.
Clay County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 16,384. Its county seat is Spencer. Its name is in honor of Henry Clay Jr., a colonel who died in action in the Mexican–American War, and son of Henry Clay, famous American statesman from Kentucky.
Clay County Courthouse