# 4 John Street, Rockford

Source page: https://checkyourplace.com/address/rockford/4-john-street-rockford

## Facts

- City: Rockford
- 2026 conforming loan limit: $832,750 (FHFA, Winnebago County)
- EPA radon zone: 1 (highest potential)
- Sinkhole-prone ground: on karst terrain (USGS)
- Coordinates: 42.28497, -89.08915

Sourced directly from official city and county records.