Natural Disaster Risk in Rock Valley
Iowa
Risk Summary for Rock Valley
Rock Valley scores 5.7/10 (Moderate 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
Average risk — standard coverage usually sufficient
This area carries average natural disaster risk. A standard homeowners or renters policy should cover common events, but review the exclusions for floods and earthquakes, which are almost never included by default.
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: Rock Valley, Iowa
Rock Valley is a town of roughly 5,094 residents in Sioux County, in the interior eastern United States. The area experiences cold winters, hot summers, and frequent severe weather, with a tornado-active spring season shaping the pattern of natural hazards that residents encounter. Understanding the local risk profile is essential for anyone living in, moving to, or owning property in Rock Valley.
FEMA rates Rock Valley's composite natural disaster risk at 5.7 out of 10 — moderate risk. Hailstorm risk tops the local hazard profile, driven by frequent severe thunderstorm development that produces some of the most property-damaging hail in the country. Residents should also account for winter and tornado risk in their preparedness planning.
Rock Valley's risk score, near the 5.4/10 state average and above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Sioux County, the highest-scoring are hail, winter, and tornado. These scores reflect county-level data and represent the baseline risk that all communities in the county share.
Rock Valley's moderate risk profile means that while catastrophic events are less frequent, they do occur. Standard homeowners insurance typically covers many common hazards here, but confirming that hail exposure is adequately protected is a worthwhile step for property owners.
What this means for Rock Valley: Hail preparedness
- Impact-resistant (Class 4) roofing can reduce hail damage and may lower insurance premiums.
- 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.
Local Factors for Rock Valley
These city-level factors differentiate Rock Valley from other communities in Sioux County and provide geographic context for its hazard exposure.
Population
5,094
Small TownGeographic Zone
Inland
Reduced coastal hazard exposure
Climate Band
Cool Continental
Latitude 43.2°
Flood Terrain
Minimal — county topography limits flood risk
Flood score: 1.0/10
Wildfire Exposure
Lower — moist climate limits wildfire frequency
Fire score: 4.7/10
Coordinates
43.1926° N, 96.3372° W
Sioux County
Population and coordinates from SimpleMaps US Cities data. Hazard scores from FEMA National Risk Index. Geographic classification derived from coordinates.
Recent Climate Data for Rock Valley
Last 12 months · Source: Open-Meteo archive
Notable Weather Days (last 12 months)
ZIP Codes in Rock Valley
Other cities in Iowa
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. City scores inherit county-level FEMA data. For informational purposes only.