Gilman township is located in Nemaha County, Kansas. Gilman township has a 2026 population of 196. Gilman township is currently declining at a rate of -1.01% annually and its population has decreased by -2.97% since the most recent census, which recorded a population of 202 in 2020.
The median household income in Gilman township is $101,250 with a poverty rate of 19.77%. The median age in Gilman township is 29.5 years: 51.3 years for males, and 17.5 years for females. For every 100 females there are 62.3 males.