Republican City is a village in Harlan County, Nebraska, United States. The population was 150 at the 2010 census. The town is near the Harlan County Reservoir.HistoryRepublican City was founded in 1871. It is named for the Republican River.GeographyRepublican City is located at .According to the United States Census Bureau, the village has a total area of 0.33sqmi, all of it land.Demographics2010 censusAs of the census of 2010, there were 150 people, 76 households, and 47 families residing in the village. The population density was 454.5PD/sqmi. There were 207 housing units at an average density of 627.3/sqmi. The racial makeup of the village was 100.0% White. Hispanic or Latino of any race were 1.3% of the population.There were 76 households of which 13.2% had children under the age of 18 living with them, 56.6% were married couples living together, 5.3% had a female householder with no husband present, and 38.2% were non-families. 34.2% of all households were made up of individuals and 15.8% had someone living alone who was 65 years of age or older. The average household size was 1.97 and the average family size was 2.51.