Vermont inland flooding risk
Windsor County has the highest inland flooding risk in Vermont, scoring 76.7 out of 100 — rated "Relatively Moderate" by FEMA's National Risk Index. Recorded inland flooding events across Vermont have increased 70% over the past five years compared to the prior five-year period.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Windsor County | 76.7 | Relatively Moderate | 16 |
| 2 | Chittenden County | 76.4 | Relatively Moderate | 17 |
| 3 | Windham County | 71.3 | Relatively Low | 71 |
| 4 | Washington County | 70.9 | Relatively Low | 25 |
| 5 | Rutland County | 67.3 | Relatively Low | 14 |
| 6 | Bennington County | 64.5 | Relatively Low | 27 |
| 7 | Orleans County | 60.7 | Relatively Low | 15 |
| 8 | Caledonia County | 52.8 | Relatively Low | 26 |
| 9 | Franklin County | 52.1 | Relatively Low | 8 |
| 10 | Orange County | 50 | Relatively Low | 5 |
| 11 | Addison County | 47.7 | Relatively Low | 16 |
| 12 | Lamoille County | 42.8 | Relatively Low | 15 |
| 13 | Essex County | 15.4 | Very Low | 10 |
| 14 | Grand Isle County | 12.8 | Very Low | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Inland Flooding risk nationally:
Other hazard risks in Vermont:
Frequently asked questions
What is the highest inland flooding risk county in Vermont?
Windsor County, VT has the highest inland flooding risk in Vermont, with a FEMA National Risk Index score of 76.7 out of 100 (rated "Relatively Moderate").
What causes inland flooding risk in Vermont?
Inland flooding covers riverine and surface (pluvial) flooding — the most common and costly natural disaster type in the US. High scores appear across river floodplains in the Midwest, South, and Mid-Atlantic, where legacy development in flood-prone areas and aging stormwater infrastructure concentrate risk.