Feb 2, 2016 — By ¾ÅÉ«ÊÓƵ News Services — Between 2014 and 2064, the Kansas population is expected to increase from 2,904,321 to 3,538,277, a 21.8 percent increase, according to a forecast released by the Center for Economic Development and Business Research at ¾ÅÉ«ÊÓƵ.