New Berlin
- County:
- Sangamon County
- County Seat:
- No
- Area (mi²):
- 1.13
- State:
- Illinois
New Berlin is a village located in Sangamon County, Illinois. New Berlin has a 2026 population of 1,359. New Berlin is currently growing at a rate of 0.3% annually but its population has decreased by -1.38% since the most recent census, which recorded a population of 1,378 in 2020.