Natural disaster risk in Middlesex County, New Jersey
New Jersey · population 862,614 · FIPS 34023
Overall: relatively high risk
Middlesex County has a composite risk score of 97.8 out of 100 — higher than 97% of US counties. It ranks 2 of 21 in New Jersey (1 = highest risk). Its highest-rated hazards are ice storm, strong wind, winter weather.
Drought now: No: no drought or dryness
No. On the U.S. Drought Monitor map valid 13 October 2026, no part of Middlesex County is in drought or abnormally dry (none of D0 to D4). That has been so for 7 weeks in a row.
Drought in Middlesex County: the last 52 weeks · droughtmonitor.unl.edu
The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration. Map courtesy of NDMC.
Risk, loss, vulnerability and resilience
| Measure | Rating and score |
|---|---|
| Overall risk Expected annual loss, adjusted for social vulnerability and community resilience. |
Relatively high 97.8 |
| Expected annual loss About $282.4 million a year, on average, across all 18 hazards. |
Relatively high 97.3 |
| Social vulnerability Higher means people may find it harder to prepare and recover. |
Relatively moderate 47.4 |
| Community resilience Higher means a stronger ability to prepare, adapt and recover. |
Relatively moderate 45.5 |
Risk by hazard
FEMA's risk rating for each of 18 natural hazards in Middlesex County, highest first. "Not applicable" means the hazard is not modelled here.
| Hazard | Risk rating and score |
|---|---|
| Ice storm | Very high 99 |
| Strong wind | Very high 99 |
| Winter weather | Very high 99 |
| Inland (riverine) flooding | Relatively high 98 |
| Cold wave | Relatively high 94 |
| Tornado | Relatively high 94 |
| Coastal flooding | Relatively high 83 |
| Earthquake | Relatively moderate 96 |
| Heat wave | Relatively moderate 96 |
| Hurricane | Relatively moderate 92 |
| Lightning | Relatively moderate 81 |
| Drought | Relatively moderate 75 |
| Wildfire | Relatively low 79 |
| Landslide | Relatively low 73 |
| Hail | Relatively low 42 |
| Avalanche | Not applicable |
| Tsunami | Insufficient data |
| Volcanic activity | Not applicable |
FEMA disaster declarations for Middlesex County
Federal declarations that designated Middlesex County, since 1 Jan 2024 (the period this site keeps from OpenFEMA). Older declarations are in FEMA's own dataset.
Not since 1 Jan 2024: no FEMA disaster declaration in the records this site read names Middlesex County.
All FEMA declarations in New Jersey, with estimated apply-by dates · Open FEMA deadlines
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s). Dataset: Disaster Declarations Summaries - v2.
How to read these ratings
- Ratings run in five steps: very low, relatively low, relatively moderate, relatively high and very high. They compare a county with every other US county; they are not a measure of danger on their own.
- Scores run from 0 to 100 and are national percentiles. The bar shows the score: a score of 80 means a higher value than 80% of US counties.
- Overall risk combines the expected annual loss with social vulnerability and community resilience.
- Expected annual loss is the average yearly loss to buildings, people and agriculture the model expects from all 18 hazards.
- Social vulnerability describes how hard it may be for people to prepare for and recover from a disaster. Higher is worse.
- Community resilience describes a community's ability to prepare, adapt and recover. Higher is better.
- "Not applicable" means FEMA does not model that hazard there (for example, hurricanes far inland).
About this data
Source: FEMA National Risk Index, version 1.20, released December 2025, published by the Federal Emergency Management Agency (US public domain). About the National Risk Index. The index is a model of relative risk built from historical hazard records, what is exposed and community factors. It is not a forecast, it does not describe any single property, and it is not insurance or financial advice. For decisions about a specific address, check FEMA's flood maps and your local emergency management office.
Questions
What is the natural disaster risk in Middlesex County, New Jersey?
FEMA's National Risk Index rates the overall risk in Middlesex County as relatively high, with a score of 97.8 out of 100 (higher than 97% of US counties). That is a comparison with other US counties, not a forecast.
What are the biggest natural hazards in Middlesex County?
The hazards rated highest for Middlesex County are ice storm (very high), strong wind (very high), winter weather (very high).
What is the flood risk in Middlesex County?
FEMA rates inland (river and rain) flooding risk in Middlesex County as relatively high, and coastal flooding risk as relatively high. For a specific property, check the FEMA flood map and your local floodplain office.
Has Middlesex County had a FEMA disaster declaration?
Not since 1 Jan 2024: no FEMA disaster declaration in the records this site read names Middlesex County.
Is Middlesex County in a drought?
No. On the U.S. Drought Monitor map valid 13 October 2026, no part of Middlesex County is in drought or abnormally dry (none of D0 to D4). That has been so for 7 weeks in a row.
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