Sumner County, Kansas

Chisholm Trail near Caldwell, Kansas by Kathy Alexander.

Chisholm Trail near Caldwell, Kansas, by Kathy Alexander.

Towns & Places:

Argonia
Belle Plaine
Caldwell 
Conway Springs
Geuda Springs/Geuda
HunnewellGhost Town
Mayfield
Milton
Milan
Mulvane
Oxford/Neptawah
South Haven
Wellington – County Seat

Chisholm Trail

Extinct Towns

Wellington Lake

Sumner County Photo Gallery

Sumner County, Kansas Location

Sumner County, Kansas Location

Sumner County, Kansas by L.H. Everts & Co, 1887

Sumner County, Kansas by L.H. Everts & Co, 1887

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, updated October 2023.

Also See:

Everyplace in Kansas

Kansas Counties

Kansas Destinations

Scenic Byways