Allen County is a county located in the southeast portion of the U.S. state of Kansas. Its county seat and most populous city is Iola. As of the 2020 census, the population was 12,526. The county was named for William Allen, a U.S. Senator from Ohio and prominent supporter of westward expansion.

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Not who you're looking for? Others named Allen County: county in Indiana, United States · county in Kentucky, United States · county in Ohio, United States

Overview

From Wikipedia (CC BY-SA 4.0).