St. Thomas township
- County:
- Pembina County
- County Seat:
- No
- Area (mi²):
- 71.964
- State:
- North Dakota
St. Thomas township is located in Pembina County, North Dakota. St. Thomas township has a 2026 population of 97. St. Thomas township is currently declining at a rate of -3% annually and its population has decreased by -4.9% since the most recent census, which recorded a population of 102 in 2020.
The median age in St. Thomas township is 63.8 years: 65.5 years for males, and 63.3 years for females. For every 100 females there are 146.5 males.