
Sarnia township
- County:
- Nelson County
- County Seat:
- No
- Area (mi²):
- 34.756
- State:
- North Dakota
Sarnia township is located in Nelson County, North Dakota. Sarnia township has a 2025 population of 45. Sarnia township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 45 in 2020.
The average household income in Sarnia township is -$1000.00 Mn with a poverty rate of 13.33%. The median age in Sarnia township is 41.2 years: 41.5 years for males, and 0 years for females.