Flood Zones: Hesperia vs San Bernardino
How do flood zones rules compare between Hesperia, CA and San Bernardino, CA?
Hesperia and San Bernardino have similar restriction levels.
Hesperia, CA
San Bernardino County
Hesperia regulates development in special flood hazard areas (SFHAs) under Hesperia Municipal Code Chapter 8.28 (Flood Hazard Protections Regulations), implementing the National Flood Insurance Program (NFIP). The city's Floodplain Administrator (Cassandra Sanchez, (760) 947-1059) reviews proposed development in mapped FEMA flood zones. The city's website warns that current FIRMs are out of date and many formerly rural areas lack detailed mapping; a flood map modernization effort is underway. Property-specific flood risk can be checked via the city's GIS viewer at hesperia.geoviewer.io or the FEMA Map Service Center.
View full Hesperia rules →San Bernardino, CA
San Bernardino County
San Bernardino participates in the NFIP and regulates development in FEMA flood zones. Structures in Zone A or AE must meet base flood elevation standards; floodplain permits required.
View full San Bernardino rules →Key Facts Comparison
| Fact | Hesperia | San Bernardino |
|---|---|---|
| Local ordinance | HMC Chapter 8.28 — Flood Hazard Protections Regulations | - |
| Floodplain Administrator | Cassandra Sanchez, (760) 947-1059 | - |
| Map status | City reports current FIRMs are out of date; modernization underway | - |
| Federal floor | 44 CFR Part 60 (NFIP minimum standards) | - |
| NFIP Participation | - | Active NFIP community |
| Key Flood Areas | - | Santa Ana River, Warm Creek, City Creek |
| Freeboard Required | - | BFE plus 1 foot |
| Substantial Improvement | - | 50% of structure value |
| Regional Agency | - | SB County Flood Control District |
Highlighted rows indicate differences between cities.
Hesperia FAQ
How do I find out if my Hesperia property is in a flood zone?
Use the FEMA Map Service Center (msc.fema.gov) by address, the city's GIS viewer at hesperia.geoviewer.io, or call the Floodplain Administrator at (760) 947-1059. The city warns current FIRMs are out of date and detailed mapping is missing in some formerly rural areas.
Can I build in a Hesperia flood zone?
Yes, but development in a special flood hazard area requires review under HMC Chapter 8.28 (Flood Hazard Protections Regulations) and must meet NFIP standards at 44 CFR Part 60 — base flood elevation, anchoring, flood-resistant materials, and no obstruction of regulatory floodways.
San Bernardino FAQ
How do I check if my San Bernardino property is in a flood zone?
Use the FEMA Flood Map Service Center at msc.fema.gov and enter your address. San Bernardino Community Development staff can also confirm your zone and any local floodplain overlays at (909) 384-5122.
Do I need flood insurance in San Bernardino?
Properties in Zones A, AE, or AO with federally backed mortgages require flood insurance. Homeowners in Zone X can purchase Preferred Risk Policies at lower cost. Alluvial fan and debris flow areas in the foothills have significant risk even outside mapped zones.
Compare other topics
See how Hesperia and San Bernardino compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool