Norco

City in Riverside County

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Report created October 27, 2026 at www.firezones.info/community/51560/norco

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    24% Very High

    All of the Very High land is in the Local Responsibility Area, where the City of Norco adopts the zones CAL FIRE recommends.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    6% has burned

    Most recently the 2015 Highway Fire, which burned 1 acre here, one of 5 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    11% 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 2,207 acres · Local Responsibility Area 24%
  2. High 825 acres · Local Responsibility Area 9%
  3. Moderate 1,187 acres · Local Responsibility Area 13%
  4. Non-wildland 4,435 acres · Local Responsibility Area 49%
  5. Not mapped by CAL FIRE 356 acres · Mostly federal land 4%

9,009 acres of land in all, 8,654 of it in the Local Responsibility Area. 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

Fires that burned here

  1. 1959 Hillside Fire Of 1,061 acres in all 217 acres
  2. 1985 River Fire Of 452 acres in all 172 acres
  3. 1979 Unnamed fire Of 209 acres in all 122 acres
  4. 2015 Highway Fire Of 1,049 acres in all · Cause: Campfire 1 acre
  5. 1985 River Fire Of 123 acres in all 1 acre

In all, 514 acres of Norco 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 Norco

Neighboring communities

  1. Norco 24% Very High · this area
  2. Corona 29% Very High
  3. Eastvale 6% Moderate · 3% Very High
  4. Jurupa Valley 22% Very High
  5. Riverside 21% Very High