For many millennia the Great Plains of North America was inhabited by nomadic Native Americans.

In 1802, Spain returned most of the land to France, but keeping title to about 7,500 square miles.

In 1803, most of the land for modern day Kansas was acquired by the United States from France as part of the 828,000 square mile Louisiana Purchase for 2.83 cents per acre.

This tornado measured F4 on the Fujita scale, and had a damage path 800 yards (730 m) wide and 100 miles (160 km) long.

28.00% of all households were made up of individuals, and 16.00% had someone living alone who was 65 years of age or older.

Nemaha County was a prohibition, or "dry", county until the Kansas Constitution was amended in 1986 and voters approved the sale of alcoholic liquor by the individual drink with a 30% food sales requirement.

† means a community is designated a Census-Designated Place (CDP) by the United States Census Bureau.

The cities of Sabetha and Seneca are considered governmentally independent and are excluded from the census figures for the townships.