Allen County, Kansas

Allen County (county code AL) is a county located in southeast portion of the U.S. state of Kansas. In 2010, 13,371 people lived there. Its county seat is Iola. Iola is also the biggest city in Allen County.
Geography.
The U.S. Census Bureau says that the county has a total area of . Of that, is land and (1.0%) is water. Allen County is located in the southeastern part of Kansas.
People.
Census 2010.
The 2010 United States Census says that there were 13,371 people living in Allen County.