# 1 O Street, Antioch

Source page: https://checkyourplace.com/address/antioch/1-o-street-antioch

## Facts

- City: Antioch
- FEMA flood zone: Zone AE, high risk; flood insurance required by federally backed lenders
- 2026 conforming loan limit: $1,249,125 (FHFA, Contra Costa County)
- EPA radon zone: 3 (low potential)
- Coordinates: 38.01243, -121.82370

Sourced directly from official city and county records.