
St. Mary township
- County:
- McLean County
- County Seat:
- No
- Area (mi²):
- 33.235
- State:
- North Dakota
St. Mary township is located in McLean County, North Dakota. St. Mary township has a 2025 population of 205. St. Mary township is currently growing at a rate of 0.49% annually and its population has increased by 3.02% since the most recent census, which recorded a population of 199 in 2020.
The average household income in St. Mary township is $93,432 with a poverty rate of 23.76%. The median age in St. Mary township is 50.5 years: 49.9 years for males, and 50.6 years for females.