Sibley
- County:
- Barnes County
- County Seat:
- No
- Area (mi²):
- 0.045
- State:
- North Dakota
Sibley is a city located in Barnes County, North Dakota. Sibley has a 2026 population of 20. Sibley 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 20 in 2020.
The median household income in Sibley is $46,875 with a poverty rate of 10%. The median age in Sibley is 64.5 years: 63.5 years for males, and 73 years for females. For every 100 females there are 66.7 males.