Elmira, CA— fire, flood & earthquake hazard information
Elmira is a unincorporated community in Solano County in the San Francisco Bay Area, covering about 0.5 square miles. This page summarizes what official government maps show for Elmira: 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 Elmira’s area that falls inside each mapped zone.
View Elmira 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 Elmira. Individual properties near the boundary can still fall inside a neighboring zone — check the exact address on the map.
FEMA flood zones
less than 1% of Elmira lies within a FEMA Special Flood Hazard Area (1% annual chance, zones A/AE/AH/AO); 14% 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) | less than 1% |
| 0.2% annual chance (500-yr) | 14% |
Earthquake faults & seismic zones
The nearest mapped fault, the Rio Vista fault, is about 3.5 mi (5.6 km) from the center of Elmira.
| Nearest mapped fault | Rio Vista fault — 3.5 mi (5.6 km) |
Dam inundation, aircraft noise & air quality
annual average fine-particle (PM2.5) concentration across its census tracts is 7.9 μg/m³, and its composite pollution burden ranks around the 73th percentile statewide.
| Annual PM2.5 (tract average) | 7.9 μg/m³ |
| Pollution burden percentile (statewide) | ~73 |
Frequently asked questions
- Is Elmira in a wildfire hazard severity zone?
- CAL FIRE's current Fire Hazard Severity Zone maps do not designate any zones within Elmira. Individual properties near the boundary can still fall inside a neighboring zone — check the exact address on the map.
- Is Elmira in a FEMA flood zone?
- less than 1% of Elmira lies within a FEMA Special Flood Hazard Area (1% annual chance, zones A/AE/AH/AO); 14% 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 Elmira?
- The nearest mapped fault, the Rio Vista fault, is about 3.5 mi (5.6 km) from the center of Elmira.
- How do I check a specific address in Elmira?
- Use the free sitelume interactive map at https://sitelume.com — search any Elmira address to see which mapped zones it falls in, layer by layer.
Nearby in Solano 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.