Flood Zones: Altadena vs Inglewood
How do flood zones rules compare between Altadena, CA and Inglewood, CA?
Altadena and Inglewood have similar restriction levels.
Altadena, CA
Los Angeles County
Most of Altadena is in FEMA Flood Zone X (minimal hazard), but the area along Eaton Wash, the Arroyo Seco tributaries, and post-Eaton Fire burn-scar areas have heightened flood and debris-flow risk. LA County Code Ch. 22.142 (Floodplain Management) applies in mapped Special Flood Hazard Areas.
View full Altadena rules →Inglewood, CA
Los Angeles County
Parts of Inglewood lie within FEMA-designated flood zones. Properties in these areas may require flood insurance and must comply with floodplain management regulations. New construction in flood zones must meet elevation and design standards.
View full Inglewood rules →Key Facts Comparison
| Fact | Altadena | Inglewood |
|---|---|---|
| Most of Altadena | Zone X (minimal hazard) | - |
| Eaton Wash Adjacent | Zone A / AE possible | - |
| Code Section | LA County Code Ch. 22.142 | - |
| BFE+1 Required | In SFHA | - |
| Post-Eaton Fire | Elevated debris-flow risk | - |
| NFIP | - | Inglewood participates |
| Flood Zones | - | FEMA Zone A and AE areas exist |
| Insurance | - | Required in Special Flood Hazard Areas |
| New Construction | - | Must meet base flood elevation |
Highlighted rows indicate differences between cities.
Altadena FAQ
Is Altadena in a flood zone?
Most of Altadena is in FEMA Zone X (minimal hazard), but areas along Eaton Wash and the foothill channels can be in Zone A/AE. Check the FEMA Map Service Center for your specific parcel.
Did the Eaton Fire affect flood risk?
Yes — post-fire burn scar areas above Altadena have elevated debris-flow and flash-flood risk during winter storms. USGS and NWS issue post-fire debris-flow advisories.
Inglewood FAQ
Is my Inglewood property in a flood zone?
Check FEMA's flood map service or contact the city's Building Division to determine if your property is in a Special Flood Hazard Area.
Do I need flood insurance in Inglewood?
If your property is in a FEMA-designated flood zone and has a federally backed mortgage, flood insurance is required. It's recommended for all properties in flood-prone areas.
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