1st Kansas Credit Union is a state-chartered credit union based in Topeka, Kansas and founded in 1929. 1st Kansas Credit Union membership is primarily available to employees of the United States Postal Service and the United States Government in specific states and regions, as well as retirees, immediate family members, and Federal Government Employee Organizations and Associations. 1st Kansas Credit Union offers consumer checking and savings accounts, certificates of deposit, individual retirement accounts, health savings accounts, credit cards, consumer loans, mortgages, and other services.