Ste. Marie township
- County:
- Jasper County
- County Seat:
- No
- Area (mi²):
- 43.315
- State:
- Illinois
Ste. Marie township is located in Jasper County, Illinois. Ste. Marie township has a 2026 population of 510. Ste. Marie township is currently declining at a rate of -0.58% annually and its population has decreased by -1.92% since the most recent census, which recorded a population of 520 in 2020.
The median household income in Ste. Marie township is $91,250 with a poverty rate of 1.79%. The median age in Ste. Marie township is 36.5 years: 37.5 years for males, and 31.5 years for females. For every 100 females there are 104.0 males.