Oskaloosa, Iowa, becomes the first municipality in the United States to fingerprint all of its citizens.
Oskaloosa is a city in, and the county seat of, Mahaska County, Iowa, United States. In the late nineteenth and early twentieth century, Oskaloosa was a national center of bituminous coal mining. The population was 11,558 in the 2020 U.S. Census, an increase from 10,938 in 2000.