# 645 Mason Avenue, Joliet

Source page: https://checkyourplace.com/address/joliet/645-mason-avenue-joliet

## Facts

- City: Joliet
- 2026 conforming loan limit: $832,750 (FHFA, Will County)
- EPA radon zone: 1 (highest potential)
- Sinkhole-prone ground: on karst terrain (USGS)
- Coordinates: 41.53619, -88.10058

Sourced directly from official city and county records.