Sumner County, Kansas
Sumner County: County in Kansas, United States
About
Sumner County is a county located in the U.S. state of Kansas. As of the 2010 census, the population was 24,132 and a population density of 8 people per km². After 10 years in 2020 county had an estimated population of 22,578 inhabitants. Its county seat is Wellington. The county was created 152 years ago in 1872.
Quick Facts about Sumner County
| Population : | 22,578 (2020) |
| Country : | United States of America |
| State : | Kansas (United States) |
| Different from : | Sumter County, Sumter County, Sumter County, Sumner County, Sumter County |
| Area : | 3069 km2 |
| Water as percent of area : | 0.3% |
| Land as percent of area : | 99.7% |
| Named for : | Charles Sumner |
| Capital : | Wellington |
| Establishment : | January 01, 1873 |
| Time Zone : | Central Time Zone |
| Local time : | 11:18:24 (22nd February 2025) |
| Density : | 7 Pop. per km² as of 2020 |
| Population growth : | -6.88% (2010-2020) |
Geography
Sumner County is located at 37°14'14"N 97°28'36"W (37.2372800, -97.4765500). It has 6 neighbors: Butler County, Cowley County, Kingman County, Sedgwick County, Grant County and Kay County.
Sumner County map
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The largest city of Sumner County is Mulvane with a population of 6,566. Other cities include, Conway Springs population 1,214, Oxford population 988, Argonia population 462 and Wellington population 336. See all Sumner County cities & populated places.
Sumner County Populated Places
Cities, towns, neighborhoods & other populated places in Sumner County.
| City Name | Population | Title |
|---|---|---|
| Mulvane | 6,566 | City in Kansas, United States of America |
| Belle Plaine | 1,538 | Township in Sumner County, Kansas |
| Conway Springs | 1,214 | City in Sumner County, Kansas, United States of America |
| Oxford | 988 | City in Sumner County, Kansas, United States |
| Milton | 480 | Census-designated place in Sumner County, Kansas |
| Argonia | 462 | Human settlement in Sumner County, Kansas, United States of America |
| South Haven | 348 | Township in Sumner County, Kansas |
| Wellington | 336 | County seat of Sumner County, Kansas, United States |
| Geuda Springs | 176 | Human settlement in Kansas, United States of America |
| Caldwell | 145 | City in Sumner County, Kansas, United States |
| Mayfield | 104 | City in Sumner County, Kansas, United States |
| Milan | 77 | City in Kansas, USA |
| Hunnewell | 59 | City in Sumner County, Kansas |
- Official Website
Official website of Sumner County
Sumner County has 6 neighbours.
- Butler County county in Kansas, United States of America
- Cowley County county in Kansas, United States
- Kingman County county in Kansas, United States
- Sedgwick County county in Kansas, United States
- Grant County county in Oklahoma, United States
- Kay County county in Oklahoma, United States
- Wellington
Demographics
According to census records, the population of Sumner County decreased by 6.88% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 24,132 | - | census |
| 2011 | 23,787 | -1.45% | estimation process |
| 2012 | 23,635 | -0.64% | estimation process |
| 2013 | 23,537 | -0.42% | estimation process |
| 2014 | 23,384 | -0.65% | estimation process |
| 2015 | 23,417 | 0.14% | estimation process |
| 2016 | 23,183 | -1.01% | estimation process |
| 2017 | 23,117 | -0.29% | estimation process |
| 2018 | 23,019 | -0.43% | estimation process |
| 2019 | 22,836 | -0.8% | estimation process |
| 2020 | 22,578 | -1.14% | estimation process |
People born in Sumner County (1)
(1894-1970) Emerson Dunham, Sr. was born in Sumner County
Other places with the same name (2)
- Sumner County , Tennessee county in Tennessee, United States with a population of 195,561 people.
Kansas Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Johnson County | 607,220 | County in Wyoming, United States |
| Sedgwick County | 519,907 | County in Kansas, United States |
| Wichita | 391,731 | The largest city in Kansas and the center of the Wichita metropolitan area. |
| Overland Park | 197,381 | The second most populous city in Johnson County, Kansas. |
| Shawnee County | 175,999 | County in Kansas, United States |
| Wyandotte County | 165,265 | County in Kansas, United States |
| Kansas City | 152,960 | The second most populous city in Kansas. |
| Douglas County | 122,530 | County in Kansas, United States |
| Leavenworth County | 82,246 | County in Kansas, United States |
| Riley County | 73,202 | County in Kansas, United States |
| Butler County | 66,992 | County in Kansas, United States of America |
| Shawnee | 66,298 | The most populous city in Johnson County, Kansas. |
| Reno County | 61,793 | County in Kansas, United States |
| Lenexa | 56,156 | The most populous city in Johnson County, Kansas. |
| Saline County | 53,926 | County in Kansas, United States |
| Salina | 46,274 | The most populous city in Saline County, Kansas. |
