North Richmond, CA— fire, flood & earthquake hazard information
North Richmond is a unincorporated community in Contra Costa County in the San Francisco Bay Area, covering about 1.4 square miles. This page summarizes what official government maps show for North Richmond: CAL FIRE fire hazard severity zones, FEMA flood zones, state seismic hazard zones, dam inundation areas, airport noise contours, and air-quality indicators. Figures are the share of North Richmond’s area that falls inside each mapped zone.
View North Richmond on the interactive map → to check any specific address, free.
Wildfire hazard severity zones
CAL FIRE's current Fire Hazard Severity Zone maps do not designate any zones within North Richmond. Individual properties near the boundary can still fall inside a neighboring zone — check the exact address on the map.
FEMA flood zones
12% of North Richmond lies within a FEMA Special Flood Hazard Area (1% annual chance, zones A/AE/AH/AO); 7% is in a coastal high hazard zone (V/VE); 38% is in the 0.2% annual chance (500-year) area. Federally backed mortgages in a Special Flood Hazard Area generally require flood insurance.
| Special Flood Hazard Area (100-yr) | 12% |
| Coastal high hazard (V/VE) | 7% |
| 0.2% annual chance (500-yr) | 38% |
Earthquake faults & seismic zones
The nearest mapped fault, the Hayward fault zone, is about 1.5 mi (2.4 km) from the center of North Richmond. 90% of its area is in a state-designated liquefaction zone of required investigation.
| Nearest mapped fault | Hayward fault zone — 1.5 mi (2.4 km) |
| Liquefaction zone | 90% |
Dam inundation, aircraft noise & air quality
81% of North Richmond lies within a state-reviewed dam-failure inundation area; annual average fine-particle (PM2.5) concentration across its census tracts is 9.1 μg/m³, and its composite pollution burden ranks around the 85th percentile statewide.
| Dam-failure inundation area | 81% |
| Annual PM2.5 (tract average) | 9.1 μg/m³ |
| Pollution burden percentile (statewide) | ~85 |
Frequently asked questions
- Is North Richmond in a wildfire hazard severity zone?
- CAL FIRE's current Fire Hazard Severity Zone maps do not designate any zones within North Richmond. Individual properties near the boundary can still fall inside a neighboring zone — check the exact address on the map.
- Is North Richmond in a FEMA flood zone?
- 12% of North Richmond lies within a FEMA Special Flood Hazard Area (1% annual chance, zones A/AE/AH/AO); 7% is in a coastal high hazard zone (V/VE); 38% is in the 0.2% annual chance (500-year) area. Federally backed mortgages in a Special Flood Hazard Area generally require flood insurance.
- What earthquake faults and seismic zones affect North Richmond?
- The nearest mapped fault, the Hayward fault zone, is about 1.5 mi (2.4 km) from the center of North Richmond. 90% of its area is in a state-designated liquefaction zone of required investigation.
- How do I check a specific address in North Richmond?
- Use the free sitelume interactive map at https://sitelume.com — search any North Richmond address to see which mapped zones it falls in, layer by layer.
Nearby in Contra Costa County
Sources: CAL FIRE Fire Hazard Severity Zones; FEMA National Flood Hazard Layer; USGS Quaternary Faults; CGS Seismic Hazard Zones & Alquist-Priolo zones; Cal OES dam inundation maps; county ALUC noise contours; CalEnviroScreen 4.0. Area shares are computed against each place’s Census TIGER boundary (last computed 2026-07-24). Boundaries and zone designations change; always verify with the issuing agency.