Historically, the state has held as many as eight seats (1893–1933). The number of congressional seats decreased from five to four following the 1990 Census. Between 1990 and 2000, the population of Kansas grew by 8.5% from 2,477,574 to 2,688,418, making it the 32nd most populated state; all four congressional seats were retained.
Kansas Legislative Research Department (June 19, 2001): 1992 Congressional Districts with selected cities and county populations (pdf, 741 kb). "This map is designed to be printed on 11 x 17 inch or larger format paper."
Kansas Legislative Research Department (July 31, 2002): Guidelines and Criteria for 2002 Kansas Congressional and Legislative Redistricting, 2 pages (pdf).
National Committee for an Effective Congress (June 22, 2004).