Natural Disaster Risk — ZIP Code 51109
Sioux City, Iowa
Risk Summary for ZIP 51109
ZIP 51109 scores 6.0/10 (High risk), above the U.S. average of 4.5. The leading hazard is Hail.
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 51109, Iowa
Located in the interior eastern United States, ZIP 51109 serves the Sioux City community. The humid continental climate of this part of Iowa — bringing cold winters, hot summers, and frequent severe weather — directly shapes the hazard exposure for properties in this postal area.
ZIP 51109's overall natural disaster risk is rated 6.0/10 (High) by FEMA's National Risk Index. Hail is the primary natural disaster concern, with severe storms delivering baseball-sized or larger hailstones that cause significant insured losses each year. Secondary hazards include drought and landslide.
Relative to other U.S. communities, ZIP 51109's natural disaster risk is above the U.S. national average of 4.5/10, slightly above the 5.4/10 state average. The hazard distribution here is led by hail and drought, as measured by FEMA across Iowa. While city-specific sub-county variation exists, these scores represent the best available federal risk estimate.
With a high natural disaster risk rating, ZIP 51109 residents benefit from taking preparedness seriously. Reviewing insurance coverage for hail 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 51109: Hail preparedness
- Park vehicles under cover when severe storms are forecast to avoid costly hail damage.
- Document roof and property condition annually to streamline any future hail claims.
- Impact-resistant (Class 4) roofing can reduce hail damage and may lower insurance premiums.
Risk for the surrounding area
Local Factors for ZIP 51109
These city-level factors differentiate ZIP 51109 from other communities in Iowa County and provide geographic context for its hazard exposure.
Population
3,606
Small TownGeographic Zone
Inland
Reduced coastal hazard exposure
Climate Band
Cool Continental
Latitude 42.6°
Flood Terrain
Minimal — county topography limits flood risk
Flood score: 1.0/10
Wildfire Exposure
Moderate — seasonal fire risk
Fire score: 7.4/10
Coordinates
42.5987° N, 96.4780° 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 51109
Last 12 months · Source: Open-Meteo archive
Notable Weather Days (last 12 months)
Nearby ZIP codes
Other cities in Iowa
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.