Spring Valley
- County:
- Bureau County
- County Seat:
- No
- Area (mi²):
- 7.412
- State:
- Illinois
Spring Valley is a city located in Bureau County, Illinois. Spring Valley has a 2026 population of 5,404. Spring Valley is currently declining at a rate of -0.93% annually and its population has decreased by -3.08% since the most recent census, which recorded a population of 5,576 in 2020.