ZIP code 91745

Los Angeles County, including Hacienda Heights and Industry

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Report created October 27, 2026 at www.firezones.info/zip/91745

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    38% Very High

    Most of the Very High land is in the State Responsibility Area, where the State Fire Marshal's zones apply.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    36% has burned

    Most recently the 2020 Palm Fire, which burned 8 acres here, one of 37 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    41% Elevated · <1% Extreme

    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 3,131 acres · 2,109 state, 1,022 local 38%
  2. High 484 acres · 117 state, 367 local 6%
  3. Moderate 404 acres · 58 state, 346 local 5%
  4. Non-wildland 4,284 acres · Local Responsibility Area 52%

8,303 acres of land in all, 2,284 in the State Responsibility Area and 6,020 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. 1939 La Habra No. 33 Fire Of 1,521 acres in all 991 acres
  2. 1989 Turnbull Fire Of 1,229 acres in all 985 acres
  3. 1955 Hacienda Fire Of 1,148 acres in all 607 acres
  4. 1949 Savage Cyn Fire Of 1,681 acres in all 457 acres
  5. 1945 Hacienda No. 162 Fire Of 856 acres in all 409 acres
  6. 1979 Catalina Fire Of 886 acres in all 337 acres
  7. 1949 Clark No. 81 Fire Of 446 acres in all 283 acres
  8. 1976 Puente Hills Fire Of 311 acres in all 278 acres
  9. 1970 Hacienda Fire 176 acres
  10. 1930 Unnamed fire Of 243 acres in all 170 acres

And 27 smaller fires. In all, 3,001 acres of ZIP code 91745 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

Communities in ZIP code 91745

Neighboring ZIP codes

  1. 91745 38% Very High · this area
  2. 90601 49% Very High
  3. 90602 47% Very High
  4. 90603 4% Very High
  5. 90605 29% Very High
  6. 90631 24% Very High
  7. 91744 6% Very High
  8. 91746 2% Moderate · <1% Very High
  9. 91748 45% Very High