This is not a Natural Hazard Disclosure statement. Open state data, explained; flood and dam zones are not covered. Details
Is Union City in a fire hazard severity zone?
50.0% of Union City is mapped in a fire hazard severity zone, and 48.7% in High or Very High, where the seller disclosures apply.
Union City ranks 580 of 1050 California places for the share of land in High or Very High zones.
In land area, that is 9.45 sq mi High, 0.25 sq mi Moderate, out of 19.41 sq mi. Its High and Very High share of 48.7% is 3.8 points below the 52.5% of Alameda County. The median home value of $1,058,200 is 0% above the county median of $1,057,400. Among 20 places in the county it ranks 2 for exposure; Sunol ranks first at 54.1%. Seismic maps cover Union City with fault zone 2.5%, liquefaction 35.4%, landslide 27.4%.
Zones differ from street to street: check the address above. In Alameda County overall, 24.7% of the land is Very High.
No fire perimeter since 1950 touches Union City in the state record. Small fires are often missing from it.
Earthquake fault zone maps
Union City touches the Newark, Niles maps.
Nearby places compared
- Hayward, 3.4 mi northwest: 17.1% High or Very High, 1 fire, median home $820,700
- Fairview, 5.3 mi north: 18.4% High or Very High, 0 fires, median home $915,100
- Newark, 5.4 mi south: 0.0% High or Very High, 1 fire, median home $1,094,200
- Cherryland, 6.5 mi northwest: 0.0% High or Very High, 0 fires, median home $654,200
- San Lorenzo, 7.2 mi northwest: 0.0% High or Very High, 0 fires, median home $833,800
- Fremont, 7.2 mi southeast: 6.4% High or Very High, 3 fires, median home $1,289,400
- Ashland, 7.9 mi northwest: 0.0% High or Very High, 0 fires, median home $695,300
- Castro Valley, 8.0 mi north: 47.8% High or Very High, 0 fires, median home $1,058,200
- Sunol, 8.1 mi east: 54.1% High or Very High, 5 fires, median home $1,514,900
- Pleasanton, 9.9 mi northeast: 23.7% High or Very High, 3 fires, median home $1,432,300
- San Leandro, 10.0 mi northwest: 1.9% High or Very High, 0 fires, median home $813,600
- East Palo Alto, 10.4 mi southwest: 0.0% High or Very High, 0 fires, median home $1,124,000