# 139 Jefferson Avenue, San Mateo

Source page: https://checkyourplace.com/address/san-mateo/139-jefferson-avenue-san-mateo

## Facts

- City: San Mateo
- 2026 conforming loan limit: $1,249,125 (FHFA, San Mateo County)
- EPA radon zone: 2 (moderate potential)
- Coordinates: 37.46104, -122.26123

Sourced directly from official city and county records.