Towns & Places:
Argonia
Belle Plaine
Caldwell
Conway Springs
Geuda Springs/Geuda
Hunnewell – Ghost Town
Mayfield
Milton
Milan
Mulvane
Oxford/Neptawah
South Haven
Wellington – County Seat
Wellington Lake
Sumner County, Kansas, located in the south-central part of the state, was created from parts of Marion and Butler Counties on February 26, 1867. It was named in honor of Charles Sumner, a U.S. Senator from Massachusetts, who strongly advocated for Kansas to become a Free State.
The county seat is Wellington. As of the 2020 census, the population was 22,382.
©Kathy Alexander/Legends of Kansas, July 2022.
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