Harris is a city in Osceola County, Iowa, United States. The population was 151 at the time of the 2020 census. Harris had its start in the yea…Harris is a city in Osceola County, Iowa, United States. The population was 151 at the time of the 2020 census. Harris had its start in the year 1889 by the building of the Burlington, Cedar Rapids & Northern Railway through Fairview Township. It was named for one of its founders, A. W. Harris. Homer E. Richards was postmaster of Harris from 1900 until 1910; after being elected county treasurer he relocated his family to Sibley on 1 January 1911.