Bull Valley
- County:
- McHenry County
- County Seat:
- No
- Area (mi²):
- 9.843
- State:
- Illinois
Bull Valley is a village located in McHenry County, Illinois. Bull Valley has a 2026 population of 1,136. Bull Valley is currently growing at a rate of 0.53% annually and its population has decreased by 0% since the most recent census, which recorded a population of 1,136 in 2020.