riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Western Connecticut Planning Region Disaster Risk

Western Connecticut Planning Region, Connecticut

FEMA Risk Rating

Relatively High

National Percentile

96th

of 3,144 counties

State Rank

#2

of 9 (1 = highest risk)

Flood Risk

98th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively High

Higher than 98% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 46% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 69% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 92% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively High

Higher than 97% of US counties

Risk Overview

About Natural Disaster Risk in Western Connecticut Planning Region, Connecticut

Western Connecticut faces above-average disaster risk

With a composite risk score of 96.28, Western Connecticut ranks in the relatively high category—significantly above the national baseline. This score reflects a region where multiple hazard types pose meaningful threats to residents and infrastructure year-round.

Highest-risk region in Connecticut

Western Connecticut's composite score of 96.28 substantially exceeds Connecticut's state average of 87.62, making it the state's highest-risk planning region. This 8.66-point gap underscores the concentration of natural disaster exposure in Connecticut's western communities.

Outpacing regional peers in hazard exposure

Western Connecticut's risk profile ranks notably higher than most neighboring Connecticut regions, driven by exposure to coastal hurricanes, urban flood zones, and seismic activity. Residents in this region face more layered hazard threats than inland areas of the state.

Flooding and hurricanes dominate local threats

Flood risk scores 98.06 in Western Connecticut—nearly at maximum—making it the region's most pressing hazard. Hurricane risk (96.95) and earthquake risk (91.95) are also substantial, while tornado risk (69.21) and wildfire risk (46.25) present secondary but real concerns for preparedness planning.

Comprehensive coverage is essential here

Standard homeowners insurance typically excludes flood and earthquake damage—critical gaps in Western Connecticut where composite risk reaches 96.28. Securing separate flood insurance and reviewing earthquake coverage can protect your family and property against the region's highest-probability disasters.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Western Connecticut Planning Region

Top Hazards by Exposure

  1. #1
    FloodPrepare
    98th percentile
  2. #2
    HurricanePrepare
    97th percentile
  3. #3
    EarthquakePrepare
    92th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Western Connecticut Planning Region

Risk Verdict

Natural hazard exposure in Western Connecticut Planning Region is notably high, placing it at the 96th percentile among all U.S. counties. Western Connecticut Planning Region's elevated composite score reflects cumulative multi-hazard exposure; households should prepare for the county's two or three primary hazard types.

Hazard Breakdown

Flood risk is Western Connecticut Planning Region's dominant natural hazard, ranked at the 98th percentile nationally under FEMA's National Risk Index. Hurricane ranks second at the 97th percentile nationally. Additional tracked hazards include earthquake (92th percentile), tornado (69th percentile), wildfire (46th percentile).

Preparedness Context

With flood ranked as the primary hazard at the 98th percentile nationally, Western Connecticut Planning Region households should build a go-bag that includes important documents, medications, and supplies to sustain the family for at least three days if evacuation is needed. Western Connecticut Planning Region's secondary hazard, hurricane at the 97th percentile nationally, indicates that compounding hazard types require layered preparation strategies, not single-peril planning. A waterproof container for documents (insurance policies, ID, prescriptions) and a clear household communication plan for when phone networks are congested are the two highest-value low-cost preparedness steps for Western Connecticut Planning Region households.

Regional Context

A composite score 8.7 points above the Connecticut state average puts Western Connecticut Planning Region in a higher-risk category than most counties in the state.

Is your household prepared for Western Connecticut Planning Region's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Western Connecticut Planning Region, CT?
Western Connecticut Planning Region has a FEMA National Risk Index rating of Relatively High, placing it in the 96th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Western Connecticut Planning Region?
Western Connecticut Planning Region is evaluated for five major natural hazard types: flooding (98th percentile), hurricane (97th percentile), earthquake (92th percentile), tornado (69th percentile), wildfire (46th percentile). The highest-risk hazard is flooding at the 98th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Western Connecticut Planning Region risk compare to the Connecticut average?
Western Connecticut Planning Region's composite risk percentile is 96th, compared to the Connecticut state average of 88th percentile. The state's overall risk rating is Relatively Moderate. This means Western Connecticut Planning Region faces higher natural disaster risk than the typical county in Connecticut.
Is Western Connecticut Planning Region at risk for flooding?
Yes, Western Connecticut Planning Region's flooding risk is at the 98th percentile nationally. This places it in the top quartile for this hazard type.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Why is Western Connecticut Planning Region higher risk than average?
Western Connecticut Planning Region's composite risk score of 96th percentile is above the Connecticut state average of 88th percentile. This elevated risk is driven by flooding exposure (98th percentile), along with hurricane and earthquake and tornado risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Source

Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.

Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.