Flood Zones: Anaheim vs Newport Beach
How do flood zones rules compare between Anaheim, CA and Newport Beach, CA?
Anaheim and Newport Beach have similar restriction levels.
Anaheim, CA
Orange County
Anaheim regulates development in flood zones under AMC 17.28 (Flood Hazard Reduction) and AMC 18.28 (Floodplain Overlay Zone). The Santa Ana River and its tributaries create FEMA-designated Special Flood Hazard Areas throughout the city.
View full Anaheim rules →Newport Beach, CA
Orange County
Newport Beach participates in the National Flood Insurance Program and regulates construction in FEMA-designated flood zones through NBMC Chapter 15.50. Properties in Special Flood Hazard Areas must elevate structures, obtain flood development permits, and carry flood insurance. Coastal flood zones face additional wave action and storm surge requirements.
View full Newport Beach rules →Key Facts Comparison
| Fact | Anaheim | Newport Beach |
|---|---|---|
| Codes | AMC 17.28 / 18.28 | - |
| Flood Source | Santa Ana River | - |
| Insurance | Required in SFHA | - |
| FEMA Maps | FIRM available online | - |
| Flood Zones | - | AE, VE, and X zones mapped |
| Elevation Req | - | 1 foot above BFE in AE zone |
| VE Zone | - | Pilings/columns, breakaway walls |
| Code | - | NBMC Chapter 15.50 |
Highlighted rows indicate differences between cities.
Anaheim FAQ
Is my Anaheim property in a flood zone?
Check FEMA's Flood Map Service Center or contact the Planning Department at 714-765-5139. The Santa Ana River creates significant flood hazard areas.
Do I need flood insurance in Anaheim?
If your property is in a Special Flood Hazard Area and has a federally insured mortgage, yes. Standard homeowner policies do not cover floods.
Newport Beach FAQ
Is my Newport Beach property in a flood zone?
Check the FEMA Flood Insurance Rate Maps available at the Building Division or FEMA's Flood Map Service Center online. Many properties along the coastline, harbor, and near Upper Newport Bay are in Special Flood Hazard Areas.
Do I need flood insurance in Newport Beach?
Properties with federally backed mortgages in FEMA Special Flood Hazard Areas are required to carry flood insurance. Even outside SFHAs, flood insurance is recommended given coastal storm and sea-level rise risks.
What is a substantial improvement for flood zone purposes?
A substantial improvement is any reconstruction, rehabilitation, or addition where the cost equals or exceeds 50% of the structure's market value before the work. This triggers full flood compliance for the entire structure.
Compare other topics
See how Anaheim and Newport Beach 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