St. Thomas is a town located in Cole County, Missouri. St. Thomas has a 2026 population of 226. St. Thomas is currently growing at a rate of 0.89% annually and its population has increased by 2.73% since the most recent census, which recorded a population of 220 in 2020.
The median household income in St. Thomas is $89,688 with a poverty rate of 3.07%. The median age in St. Thomas is 39.6 years: 39.6 years for males, and 40.2 years for females. For every 100 females there are 78.1 males.