Republican City is a village, despite its name, in Harlan County, Nebraska, United States. The population was 150 at the 2010 census. The town is near the Harlan County Reservoir. At its peak in the 1950s the population was about 4 times larger than it is today.

Harlan County is a county in the U.S. state of Nebraska. As of the 2020 United States Census, the population was 3,073. Its county seat is Alma. The county is home to the Harlan County Reservoir.