Natural Disaster Risk in Johnston City
Illinois
Risk Summary for Johnston City
Johnston City scores 7.2/10 (High risk), above the U.S. average of 4.5. The leading hazard is Strong Wind.
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: Johnston City, Illinois
Johnston City is a town of roughly 5,342 residents in Williamson County, in the interior eastern United States. The area experiences bitterly cold winters and hot, humid summers, with a severe thunderstorm and tornado season each spring 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 Johnston City.
FEMA rates Johnston City's composite natural disaster risk at 7.2 out of 10 — high risk. Strong wind is the primary natural hazard, with the area exposed to downburst winds from convective storms that can exceed 80 mph and cause hurricane-level localized damage. Residents should also account for earthquake and heat risk in their preparedness planning.
Johnston City's risk score, slightly above the 5.8/10 state average and well above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Williamson County, the highest-scoring are wind, earthquake, and heat. These scores reflect county-level data and represent the baseline risk that all communities in the county share.
Johnston City's high risk designation reflects meaningful exposure to natural hazards. Residents should verify that their insurance covers the area's primary risks, prepare a family emergency plan, and stay informed about seasonal hazard peaks through local weather and emergency management services.
What this means for Johnston City: Strong Wind preparedness
- Inspect and reinforce roofing, siding, and garage doors, which are common failure points in high winds.
- Secure or store outdoor furniture and loose objects that can become projectiles.
- Confirm your policy covers wind damage and keep an inventory of property for claims.
Local Factors for Johnston City
These city-level factors differentiate Johnston City from other communities in Williamson County and provide geographic context for its hazard exposure.
Population
5,342
Small TownGeographic Zone
Inland
Reduced coastal hazard exposure
Climate Band
Moderate Continental
Latitude 37.8°
Flood Terrain
Minimal — county topography limits flood risk
Flood score: 1.0/10
Wildfire Exposure
Lower — moist climate limits wildfire frequency
Fire score: 2.5/10
Coordinates
37.8264° N, 88.9261° W
Williamson 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 Johnston City
Last 12 months · Source: Open-Meteo archive
Notable Weather Days (last 12 months)
ZIP Codes in Johnston City
Other cities in Illinois
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.