Pomona

City in Los Angeles County

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Report created October 27, 2026 at www.firezones.info/community/58072/pomona

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    11% High · <1% Very High

    Most of the High land is in the Local Responsibility Area, where the City of Pomona adopts the zones CAL FIRE recommends.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    9% has burned

    Most recently the 2009 Diamond Fire, which burned 56 acres here, one of 21 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    <1% Elevated

    Utilities may shut off power in the CPUC High Fire-Threat District in fire weather, and homes outside it can lose power when their lines run through it.

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Land by hazard class

  1. Very High 24 acres · Local Responsibility Area <1%
  2. High 1,682 acres · <1 state, 1,682 local 11%
  3. Moderate 452 acres · Local Responsibility Area 3%
  4. Non-wildland 12,558 acres · Local Responsibility Area 85%

14,716 acres of land in all, <1 in the State Responsibility Area and 14,716 in the Local. State zones are the ones the State Fire Marshal designated, in effect since 1 April 2024. Local zones are CAL FIRE's 2025 recommendation, which each city or county adopts by ordinance and can make stricter. How to read fire zones

Largest fires

  1. 1929 Kelly No. 41 Fire Of 1,347 acres in all 606 acres
  2. 1949 Richards No. 179 Fire 305 acres
  3. 1928 Diamond No. 101 Fire Of 261 acres in all 168 acres
  4. 1957 Unnamed fire Of 281 acres in all 161 acres
  5. 1974 Unnamed fire 112 acres
  6. 1929 Le Claire No. 67 Fire Of 162 acres in all 109 acres
  7. 1971 Unnamed fire 107 acres
  8. 1974 Unnamed fire 98 acres
  9. 1985 Elephant Hill Fire 89 acres
  10. 1957 Unnamed fire Of 90 acres in all 89 acres

And 11 smaller fires. In all, 1,294 acres of Pomona have burned. Acres are the land each fire burned here, and fires that crossed less than an acre are not counted. Some older or smaller fires may be missing, and a fire perimeter can include unburned patches. How to read fire history

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published 27 June 2025, local map 2 February 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published 28 July 2026
Power line fire risk
California Public Utilities Commission
Published 23 February 2026

This site is independent and not affiliated with CAL FIRE or the CPUC, so for an official determination, check with the agency or your city or county. How we read the data

Nearby areas

ZIP codes in Pomona

Neighboring communities

  1. Pomona 11% High · <1% Very High · this area
  2. Chino 6% Very High
  3. Chino Hills 73% Very High
  4. Claremont 37% Very High
  5. Diamond Bar 36% Very High
  6. Industry 11% High · 3% Very High
  7. La Verne 29% Very High
  8. Montclair No hazard zones
  9. San Dimas 32% Very High
  10. Walnut 15% Very High