Porterville

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Moderate 957 acres · 2 state, 954 local 8%
  2. Non-wildland 11,091 acres · Local Responsibility Area 92%
  3. Not mapped by CAL FIRE 41 acres · Mostly federal land <1%

  12,089 acres of land in all, 2 in the State Responsibility Area and 12,045 in the Local. 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

  Map
  1. 2011 Granite Fire 873 acres in total · Cause: Lightning 85 acres here
  2. 2002 Granite Fire Cause: Railroad 74 acres here
  3. 2021 Main Fire 378 acres in total 52 acres here
  4. 1958 Rocky Hill Fire 392 acres in total 8 acres here

  The most recent was the 2021 Main Fire, which burned 52 acres here. In all, 203 acres of Porterville 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