Ste. Marie is a village located in Jasper County, Illinois. Ste. Marie has a 2026 population of 228. Ste. Marie is currently declining at a rate of -0.44% annually and its population has decreased by -2.15% since the most recent census, which recorded a population of 233 in 2020.
The median household income in Ste. Marie is $86,250 with a poverty rate of 4.27%. The median age in Ste. Marie is 29.4 years: 26.7 years for males, and 37.2 years for females. For every 100 females there are 117.8 males.