North Otter township
- County:
- Macoupin County
- County Seat:
- No
- Area (mi²):
- 35.708
- State:
- Illinois
North Otter township is located in Macoupin County, Illinois. North Otter township has a 2026 population of 751. North Otter township is currently declining at a rate of -0.4% annually and its population has decreased by -2.21% since the most recent census, which recorded a population of 768 in 2020.
The median household income in North Otter township is $135,132 with a poverty rate of 6.09%. The median age in North Otter township is 58.3 years: 48.3 years for males, and 61.9 years for females. For every 100 females there are 115.9 males.