Noonan
- County:
- Divide County
- County Seat:
- No
- Area (mi²):
- 0.292
- State:
- North Dakota
Noonan is a city located in Divide County, North Dakota. Noonan has a 2026 population of 134. Noonan is currently declining at a rate of -0.74% annually and its population has decreased by -2.9% since the most recent census, which recorded a population of 138 in 2020.
The median household income in Noonan is $125,625 with a poverty rate of 11.66%. The median age in Noonan is 47.3 years: 45 years for males, and 51.2 years for females. For every 100 females there are 87.4 males.