Nemaha County, Kansas

Nemaha County (standard abbreviation: NM) is a county in the northeastern part of the U.S. state of Kansas. In 2010, 10,178 people lived there. The county seat is Seneca.
History.
In 1855, Nemaha County was created.
The first railroad in Nemaha County was built in 1866.
On May 30, 1879, the "Irving, Kansas Tornado" went through Nemaha county. This tornado measured F4 on the Fujita scale. It had a damage path wide and long. Eighteen people were killed and sixty were injured in this tornado.
Geography.
The U.S. Census Bureau says that the county has a total area of . Of that, is land and (0.3%) is water.