Wheat Capital of the World   

Sumner County Courthouse
501 N. Washington
Wellington, Ks. 67152

Welcome to the official website for Sumner County. The purpose of this site is to provide timely and accurate information about Sumner County government and services and make it available to the public at their convenience via the Internet. This site provides access to information, offices, documents, and instructions of various activities.

Sumner County is located in south-central Kansas and, in 2003, was designated within the greater Wichita Metropolitan Service Area. Our county seat is in Wellington. Sumner County is comprised of 30 townships and 11 incorporated cities, Argonia, Belle Plaine, Caldwell, Conway Springs, Geuda Springs, Hunnewell, Mayfield, Milan, Oxford, South Haven, and Wellington. A portion of the City of Mulvane also lies in Sumner County. There are also a number of smaller communities located within the county that are not incorporated.  

The County is 36 miles wide from east to west borders and approximately 33 miles from north to south. It covers a total of 1,188 square miles. It is bounded on the east by Cowley County, the north by Sedgwick County, the west by Kingman and Harper Counties, and the south by Grant and Kay Counties in Oklahoma. As of the 2010 Census, the population of Sumner County was 24,132.

The official county newspaper for 2013 is the Belle Plaine News.

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For questions about Sumner County in General, please contact the Sumner County Clerk.
For questions or comments regarding these pages contact 
Sumner County Webmaster.


Sumner County Data Disclaimer 

It is understood that, while Sumner County has no indication and reason to believe that there are inaccuracies in information presented on this web site.  Sumner County makes no representations of any kind, including but not limited to warranties of merchantability or fitness for a particular use. Nor are any such warranties to be implied with respect to the information, data or service furnished herein. 

In no event shall 
Sumner County become liable to users of these data, or any other party, for any loss or damages, consequential or otherwise, including but not limited to time, money, or goodwill, arising from the use, operation or modification of the data. In using this data, users further agree to indemnify, defend, and hold harmless Sumner County for any and all liability of any nature arising out of or resulting from the lack of accuracy or correctness of the data, or the use of the data.



"No person shall knowingly sell, give or receive, for the purpose of selling or offering for sale, any property or service to persons listed therein, any list of names and addresses contained therein, or derived from public records..." K.S.A. 21-3914. Violation of this law is a Class C Misdemeanor and can subject the violator to prosecution and imprisonment up to 30 days and a fine of $500.00. Violators will be reported for prosecution. By accessing this site, the user makes the following certification pursuant to K.S.A. 45-220(c)(2): "the requester does not intend to, and will not: (A) Use any list of names or addresses contained in or derived from the records or information for the purpose of selling or offering for sale any property or service to any person listed or to any person who resides at any address listed; or (B) sell, give or otherwise make available to any person any list of names or addresses contained in or derived from the records or information the purpose of allowing that person to sell or offer for sale any property or service to any person listed or to any person who resides at any address listed."