Flood Zones: Antioch vs Richmond
How do flood zones rules compare between Antioch, CA and Richmond, CA?
Antioch has fewer restrictions than Richmond.
Antioch, CA
Contra Costa County
Portions of Antioch along the San Joaquin River and creek tributaries are mapped in FEMA Special Flood Hazard Areas (SFHA). AMC Chapter 8-4 Floodplain Management requires elevation certificates and flood-resistant construction in Zone A/AE areas.
View full Antioch rules →Richmond, CA
Contra Costa County
Substantial portions of Richmond along the shoreline, Marina Bay, Point Richmond, and the Iron Triangle lie within FEMA AE, VE, or X-shaded flood zones, requiring flood-resistant construction, elevation certificates, and mandatory flood insurance for federally-backed mortgages.
View full Richmond rules →Key Facts Comparison
| Fact | Antioch | Richmond |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Antioch FAQ
Richmond FAQ
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