Sumner County is the name of two counties in the United States:
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Sumner County, Kansas
Sumner County is a county located in the U.S. state of Kansas. Its county seat is Wellington. As of the 2020 census, the population was 22,382. The county is named after Charles Sumner, a U.S. Senator from Massachusetts who was a leader of ...
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Sumner County, Tennessee
Sumner County is a county located on the central northern border of Tennessee in the United States. As of the 2020 United States census, the population was 196,281. Its county seat is Gallatin, and its most populous city is Hendersonville. T ...
{{Geodis, uscounty