Arna township
- County:
- Pine County
- County Seat:
- No
- Area (mi²):
- 37.602
- State:
- Minnesota
Arna township is located in Pine County, Minnesota. Arna township has a 2026 population of 96. Arna township is currently growing at a rate of 1.05% annually and its population has increased by 12.94% since the most recent census, which recorded a population of 85 in 2020.
The median household income in Arna township is $44,375 with a poverty rate of 19%. The median age in Arna township is 55.7 years: 50.8 years for males, and 61.3 years for females. For every 100 females there are 143.9 males.