
Oneida County
- State:
- Wisconsin
- County Seat:
- Rhinelander
Oneida County's estimated 2025 population is 38,292 with a growth rate of 0.09% in the past year according to the most recent United States census data. Oneida County is the 39th largest county in Wisconsin. The 2010 population was 35,949 and has seen a growth of 6.52% since that time.