Natural Hazard Risk in Connecticut
The risk score (0–100) combines expected annual loss from 18 natural hazards with social vulnerability and community resilience. Higher = greater relative risk. Scores compare counties across the United States.
See what's happening right now on the live map →| County | Risk score | Rating | Expected annual loss | Population |
|---|---|---|---|---|
| Capitol | 97.4 | Relatively High | $302.3M | 975,267 |
| Western Connecticut | 96.3 | Relatively High | $259.6M | 620,462 |
| South Central Connecticut | 95.1 | Relatively High | $173.8M | 570,229 |
| Naugatuck Valley | 93.2 | Relatively Moderate | $139.9M | 450,296 |
| Greater Bridgeport | 91.8 | Relatively Moderate | $104.3M | 325,728 |
| Southeastern Connecticut | 88.6 | Relatively Moderate | $83.5M | 280,316 |
| Lower Connecticut River Valley | 83.8 | Relatively Moderate | $62.8M | 174,152 |
| Northwest Hills | 79.6 | Relatively Low | $53.6M | 112,433 |
| Northeastern Connecticut | 62.8 | Relatively Low | $33.2M | 95,308 |
🏛️ Federal disaster declarations (last 2 years)
Fire · Designated areas: Hartford (County)(in PMSA 1170,3280,5440), New Haven (County)(in (P)MSA 1160,5480,8880)
Severe Storm · Designated areas: Fairfield (County)(in PMSA 1160,1930,5760,8040), Litchfield (County)(in (P)MSA 1170,1930,3280,8880), New Haven (County)(in (P)MSA 1160,5480,8880)
Severe Storm · Designated areas: Fairfield (County)(in PMSA 1160,1930,5760,8040), Litchfield (County)(in (P)MSA 1170,1930,3280,8880), New Haven (County)(in (P)MSA 1160,5480,8880)
Major disaster (DR) and emergency (EM) declarations unlock federal assistance for the designated areas. Source: FEMA / OpenFEMA.
Other states
Data: FEMA National Risk Index (updated ~annually). AlertAtlas is not an official warning service — always follow local authorities.