Barnett is a city located in Morgan County, Missouri. Barnett has a 2026 population of 165. Barnett is currently growing at a rate of 1.85% annually and its population has increased by 5.77% since the most recent census, which recorded a population of 156 in 2020.
The median household income in Barnett is $36,750 with a poverty rate of 20.16%. The median age in Barnett is 39.8 years: 40.5 years for males, and 39.5 years for females. For every 100 females there are 115.0 males.