Twin Valley township
- County:
- McKenzie County
- County Seat:
- No
- Area (mi²):
- 79.148
- State:
- North Dakota
Twin Valley township is located in McKenzie County, North Dakota. Twin Valley township has a 2026 population of 271. Twin Valley township is currently growing at a rate of 3.83% annually and its population has increased by 1.88% since the most recent census, which recorded a population of 266 in 2020.
The median household income in Twin Valley township is $227,578 with a poverty rate of 0%. The median age in Twin Valley township is 67.1 years: 50.9 years for males, and 68.3 years for females. For every 100 females there are 85.0 males.