ZIP code 91792

Los Angeles County, including West Covina and South San Jose Hills

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Report created October 31, 2026 at www.firezones.org/zip/91792

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    1. High 331 acres · Local Responsibility Area 13%
    2. Moderate 70 acres · Local Responsibility Area 3%
    3. Non-wildland 2,058 acres · Local Responsibility Area 84%

    2,459 acres of land in all, 2,459 of it in the Local Responsibility Area. State zones are the ones the State Fire Marshal designated, in effect since April 1, 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

  • Fire history

    Fires CAL FIRE has recorded here

    1. 1972 Winnett Fire 747 acres in total 60 acres here
    2. 1959 Unnamed fire 57 acres here
    3. 1971 Montezuma Fire 286 acres in total 41 acres here
    4. 1962 Unnamed fire 55 acres in total 26 acres here
    5. 1957 Unnamed fire 189 acres in total 7 acres here
    6. 1974 Unnamed fire 64 acres in total 4 acres here
    7. 1973 Unnamed fire 4 acres here

    The most recent was an unnamed fire in 1974, which burned 4 acres here. In all, 196 acres of ZIP code 91792 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

Nearby areas

Communities in ZIP code 91792

Neighboring ZIP codes

  1. 91792 13% High · this area
  2. 91744 6% Very High
  3. 91748 45% Very High
  4. 91789 17% Very High
  5. 91790 <1% High
  6. 91791 12% High · 1% Very High

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published June 27, 2025, local map February 2, 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published July 28, 2026

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