Wildfire Zones: Peoria vs Phoenix
How do wildfire zones rules compare between Peoria, AZ and Phoenix, AZ?
Peoria has fewer restrictions than Phoenix.
Peoria, AZ
Maricopa County
Peoria's western and northern edges border desert open space near Lake Pleasant, creating some wildfire risk. However, the city does not have formally designated WUI zones. The 2018 International Fire Code provides general fire prevention standards. Properties near the desert interface should maintain defensible space.
View full Peoria rules →Phoenix, AZ
Maricopa County
Phoenix adopts the International Fire Code (2024 edition with local amendments) under Chapter 15. While the urban core has low wildfire risk, northern mountain preserve areas have elevated risk. The Arizona DFFM evaluates communities at risk, and Phoenix requires defensible space and fire-resistant construction in hazard areas.
View full Phoenix rules →Key Facts Comparison
| Fact | Peoria | Phoenix |
|---|---|---|
| WUI Status | No formal designations | - |
| Risk Areas | Western edge near Lake Pleasant, Vistancia | - |
| Fire Code | 2018 International Fire Code | 2024 IFC with Phoenix amendments |
| Season | Pre-monsoon (April-June) highest risk | - |
| Growth | Rapid westward expansion into desert | - |
| State Program | Arizona Firewise USA | - |
| Code Chapter | - | Phoenix City Code Chapter 15 |
| High-Risk Areas | - | Northern mountain preserve areas |
| Defensible Space | - | 0-5 ft, 5-30 ft, 30-100 ft zones |
| Assessment | - | AZ WRAP wildfire risk portal |
Highlighted rows indicate differences between cities.
Peoria FAQ
Is Peoria in a wildfire zone?
No formal WUI zones, but western communities near desert open space have some wildfire exposure from dried vegetation.
Do I need fire-resistant materials?
No WUI-specific building codes apply. Standard fire code governs all construction.
What about new developments near the desert?
Communities like Vistancia near Lake Pleasant should maintain defensible space around homes.
Phoenix FAQ
Is Phoenix at risk for wildfires?
The urban core has low wildfire risk, but properties near the northern mountain preserves (such as areas near the Phoenix Mountains, South Mountain, and North Mountain) have elevated risk. The Arizona Wildfire Risk Assessment Portal can identify your property's risk level.
What fire prevention measures are required?
Phoenix follows the 2024 International Fire Code. Properties in fire-prone areas should maintain defensible space in three zones: Immediate (0-5 ft), Intermediate (5-30 ft), and Extended (30-100 ft). Fire-resistant construction materials including Class A roofing are recommended.
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