Natural Disaster Risk — ZIP Code 85140
San Tan Valley, Arizona
Risk Summary for ZIP 85140
ZIP 85140 scores 6.3/10 (High risk), above the U.S. average of 4.5. The leading hazard is Extreme Heat.
Top Hazards
All 18 Hazard Scores
How it compares
Live Conditions
🏠 What this means for insurance
Above-average risk — check your policy limits
Standard homeowners insurance may not fully cover all hazards rated highly in this area. Verify that your policy includes adequate coverage for the top local hazards, and ask your insurer about specific endorsements or separate policies (e.g., flood, earthquake).
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: ZIP 85140, Arizona
ZIP 85140 covers part of the San Tan Valley area, in the arid interior West. The surrounding region experiences intense summer heat and very low annual precipitation, with a summer monsoon season bringing flash flood risk shaping the natural hazards that residents of this ZIP code face. Risk scores here are derived from FEMA data for the encompassing county.
FEMA rates ZIP 85140's composite natural disaster risk at 6.3 out of 10 — high risk. The threat of extreme heat dominates the local risk profile, with the area experiencing heat waves that drive heat-related illness and place significant demand on energy infrastructure. Residents should also account for wildfire and lightning risk in their preparedness planning.
ZIP 85140's risk score, near the 6.1/10 state average and above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA, the highest-scoring are heat, wildfire, and lightning. These scores reflect county-level data and represent the baseline risk that all communities in the county share.
With a high natural disaster risk rating, ZIP 85140 residents benefit from taking preparedness seriously. Reviewing insurance coverage for heat and secondary hazards, registering for emergency alerts, and maintaining a household emergency kit are practical steps that can significantly reduce impact during a major event.
What this means for ZIP 85140: Extreme Heat preparedness
- Ensure reliable air conditioning and identify nearby cooling centers for extreme heat days.
- Check on elderly neighbors and never leave children or pets in parked vehicles.
- Stay hydrated and limit outdoor activity during the hottest hours when heat advisories are issued.
Risk for the surrounding area
Local Factors for ZIP 85140
These city-level factors differentiate ZIP 85140 from other communities in Arizona County and provide geographic context for its hazard exposure.
Population
51,260
UrbanGeographic Zone
Inland
Reduced coastal hazard exposure
Climate Band
Mild Temperate
Latitude 33.2°
Flood Terrain
Minimal — county topography limits flood risk
Flood score: 1.0/10
Wildfire Exposure
High — long dry fire season
Fire score: 9.8/10
Coordinates
33.2480° N, 111.4892° W
Population and coordinates from SimpleMaps US Cities data. Hazard scores from FEMA National Risk Index. Geographic classification derived from coordinates.
Recent Climate Data for ZIP 85140
Last 12 months · Source: Open-Meteo archive
Notable Weather Days (last 12 months)
Nearby ZIP codes
Other cities in Arizona
Data source: FEMA National Risk Index (NRI). County-level data applied to ZIP codes within each county. Scores are normalized to 1–10 across all US counties. This information is for general awareness only — consult official emergency management resources and a licensed insurer for property-specific advice.