Connecticut natural disaster risk
Connecticut ranks #43 of 51 from the lowest population-weighted county-score mean in our state comparison. Its highest hazard-score means are riverine flooding, hurricane, ice storm.
RelocateMath computes these state means by weighting FEMA county scores by population. A mean of county percentiles is not a national state percentile or an official FEMA state rating.
The vertical line marks county-score scale midpoint (50).
Find your county's risk in Connecticut
All 9 county rows with a FEMA score are available below, initially ordered by population.
| County | Population | Risk score | FEMA rating |
|---|---|---|---|
| Capitol Planning Region | 977,290 | 97.4 | Relatively High |
| Western Connecticut Planning Region | 627,071 | 96.3 | Relatively High |
| South Central Connecticut Planning Region | 570,598 | 95.1 | Relatively High |
| Naugatuck Valley Planning Region | 454,969 | 93.2 | Relatively Moderate |
| Greater Bridgeport Planning Region | 329,259 | 91.8 | Relatively Moderate |
| Southeastern Connecticut Planning Region | 279,971 | 88.6 | Relatively Moderate |
| Lower Connecticut River Valley Planning Region | 175,822 | 83.8 | Relatively Moderate |
| Northwest Hills Planning Region | 113,216 | 79.6 | Relatively Low |
| Northeastern Connecticut Planning Region | 96,312 | 62.8 | Relatively Low |
The county rows show FEMA's own county percentile scores and rating categories; the state figures above are our weighted means. County data cannot establish a property's safety. Expected loss is modeled annual loss per resident, not a premium quote. The insurance figure is what owners with a mortgage reported paying in 2024 (Census American Community Survey), not a current quote. For a specific home, check the address on FEMA's flood map and get insurance quotes before you commit. Our guide explains how to check natural disaster risk before you move.
Lowest FEMA county risk scores in Connecticut
- Northeastern Connecticut Planning Region 62.8
- Northwest Hills Planning Region 79.6
- Lower Connecticut River Valley Planning Region 83.8
- Southeastern Connecticut Planning Region 88.6
- Greater Bridgeport Planning Region 91.8
- Naugatuck Valley Planning Region 93.2
- South Central Connecticut Planning Region 95.1
- Western Connecticut Planning Region 96.3
Cities in Connecticut
- Hartford, CT county-score mean 95.3
- Bridgeport, CT county-score mean 94.7
- New Haven, CT county-score mean 95.1
- Norwich, CT county-score mean 88.6
Frequently asked questions
Is Connecticut safe from natural disasters?
Connecticut's population-weighted county-score mean is 93 out of 100 (very high county-score mean), #43 of 51 from the lowest mean in our state comparison. A state average cannot show whether an individual home is safe. About 60% of residents live in counties FEMA rates relatively high or very high.
What natural disasters happen in Connecticut?
The highest population-weighted county hazard-score means in Connecticut are riverine flooding, hurricane, ice storm (means 96, 94, 91 on the 0–100 county-score scale). These are not national state percentiles.
Which counties have the lowest modeled risk scores in Connecticut?
Among counties with at least 20,000 people, the lowest FEMA county risk scores are in Northeastern Connecticut Planning Region, Northwest Hills Planning Region, Lower Connecticut River Valley Planning Region. Conditions vary within each county; check an individual address separately.