Gilliam is a city located in Saline County, Missouri. Gilliam has a 2026 population of 177. Gilliam is currently growing at a rate of 0.57% annually and its population has decreased by 0% since the most recent census, which recorded a population of 177 in 2020.
The median household income in Gilliam is $39,728 with a poverty rate of 39.81%. The median age in Gilliam is 24 years: 16.3 years for males, and 29.5 years for females. For every 100 females there are 92.9 males.