Norwalk, CT

92,187 people · 4,028 per sq mi · 22.9 sq mi

Measured at the center point marked on the map, with the data a report uses. A report for an address adds the flood zone, elevation, nearby schools, noise sources, your commute, and what to verify.

Natural hazard risk

FEMA National Risk Index, December 2025

Relatively Moderateoverall, census tract at the city center

Coastal flooding: Relatively High
Inland (river and rain) flooding: Relatively Moderate
Hurricane: Relatively Moderate
Strong wind: Relatively Moderate
Winter weather: Relatively Moderate
Earthquake: Relatively Low
Heat wave: Relatively Low
Tornado: Very Low
Hail: Very Low
Landslide: Very Low

FEMA National Risk Index, December 2025

Storms and earthquakes

NOAA Storm Prediction Center, NOAA IBTrACS, USGS

Tornado tracks within 9 mi3 since 2000 · strongest EF2 · latest August 2020: 4
Tropical storm tracks within 50 mi2 at hurricane strength · strongest Category 2 · latest Gloria (1985): 20
Recorded earthquakes within 31 milargest M3.6: 1

NOAA Storm Prediction Center, NOAA IBTrACS, USGS

Reported crime

No FBI figures for a Norwalk police department. A report matches the nearest reporting agency instead.

Typical rent

No HUD Fair Market Rent loaded for this county.

Outdoor air

No modeled air values for this tract.

Disasters, Superfund, radon

OpenFEMA, EPA National Priorities List, EPA radon zones

Federal disaster declarations for the county, last 20 years: 0
Superfund sites within 10 mi: 1