Question 1

Which county in Connecticut has the highest natural disaster risk?

Accepted Answer

Capitol Planning Region has the highest natural disaster risk in Connecticut, rated Relatively High (97th percentile nationally), based on FEMA National Risk Index data.

Question 2

Which county in Connecticut is the safest from natural disasters?

Accepted Answer

Northeastern Connecticut Planning Region has the lowest natural disaster risk in Connecticut, rated Relatively Low (63th percentile nationally), based on FEMA NRI data.

Question 3

What natural disasters are most common in Connecticut?

Accepted Answer

Connecticut counties face varying levels of risk from floods, wildfires, tornadoes, earthquakes, and hurricanes. The FEMA National Risk Index scores each county across 18 hazard types. See individual county pages for detailed hazard breakdowns.

Question 4

How is natural disaster risk measured by county?

Accepted Answer

The FEMA National Risk Index (NRI) measures natural disaster risk using expected annual loss, social vulnerability, and community resilience. Scores are normalized nationally, with ratings from Very Low to Very High across 18 natural hazard types.

County	Percentile	FEMA Rating	Flood	Wildfire	Tornado	Earthquake
Capitol Planning Region	97th	Relatively High	99.0	56.9	90.5	93.5
Western Connecticut Planning Region	96th	Relatively High	98.1	46.2	69.2	92.0
South Central Connecticut Planning Region	95th	Relatively High	96.9	41.2	78.0	91.5
Naugatuck Valley Planning Region	93th	Relatively Moderate	96.3	47.7	73.1	86.1
Greater Bridgeport Planning Region	92th	Relatively Moderate	94.8	23.9	41.7	86.4
Southeastern Connecticut Planning Region	89th	Relatively Moderate	91.8	39.4	53.1	80.9
Lower Connecticut River Valley Planning Region	84th	Relatively Moderate	90.3	43.6	43.3	74.8
Northwest Hills Planning Region	80th	Relatively Low	88.0	39.9	42.9	66.3
Northeastern Connecticut Planning Region	63th	Relatively Low	75.2	22.9	28.3	61.4

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