Natural disaster risk in Strafford County, New Hampshire
New Hampshire · population 130,861 · FIPS 33017
Overall: relatively low risk
Strafford County has a composite risk score of 64.1 out of 100 — higher than 64% of US counties. It ranks 7 of 10 in New Hampshire (1 = highest risk). Its highest-rated hazards are ice storm, inland (riverine) flooding, lightning.
Drought now: Yes: D1 Moderate Drought, at least 54 weeks
Yes. On the U.S. Drought Monitor map valid 13 October 2026, 100% of Strafford County is in D1 Moderate Drought. Some of it has been at D1 or worse for at least 54 weeks in a row.
Drought in Strafford 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 low 64.1 |
| Expected annual loss About $29.1 million a year, on average, across all 18 hazards. |
Relatively low 71.6 |
| Social vulnerability Higher means people may find it harder to prepare and recover. |
Very low 16.6 |
| Community resilience Higher means a stronger ability to prepare, adapt and recover. |
Relatively high 73.5 |
Risk by hazard
FEMA's risk rating for each of 18 natural hazards in Strafford County, highest first. "Not applicable" means the hazard is not modelled here.
| Hazard | Risk rating and score |
|---|---|
| Ice storm | Relatively high 88 |
| Inland (riverine) flooding | Relatively moderate 75 |
| Lightning | Relatively moderate 74 |
| Drought | Relatively moderate 66 |
| Earthquake | Relatively low 77 |
| Hurricane | Relatively low 76 |
| Heat wave | Relatively low 49 |
| Winter weather | Relatively low 48 |
| Coastal flooding | Relatively low 44 |
| Strong wind | Relatively low 43 |
| Tornado | Relatively low 42 |
| Cold wave | Relatively low 41 |
| Landslide | Very low 61 |
| Wildfire | Very low 34 |
| Hail | Very low 20 |
| Avalanche | Not applicable |
| Tsunami | Insufficient data |
| Volcanic activity | Not applicable |
FEMA disaster declarations for Strafford County
Federal declarations that designated Strafford 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 Strafford County.
All FEMA declarations in New Hampshire, 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 Strafford County, New Hampshire?
FEMA's National Risk Index rates the overall risk in Strafford County as relatively low, with a score of 64.1 out of 100 (higher than 64% of US counties). That is a comparison with other US counties, not a forecast.
What are the biggest natural hazards in Strafford County?
The hazards rated highest for Strafford County are ice storm (relatively high), inland (riverine) flooding (relatively moderate), lightning (relatively moderate).
What is the flood risk in Strafford County?
FEMA rates inland (river and rain) flooding risk in Strafford County as relatively moderate, and coastal flooding risk as relatively low. For a specific property, check the FEMA flood map and your local floodplain office.
Has Strafford County had a FEMA disaster declaration?
Not since 1 Jan 2024: no FEMA disaster declaration in the records this site read names Strafford County.
Is Strafford County in a drought?
Yes. On the U.S. Drought Monitor map valid 13 October 2026, 100% of Strafford County is in D1 Moderate Drought. Some of it has been at D1 or worse for at least 54 weeks in a row.
Every county in New Hampshire, ranked · All states · Disasters near me