Natural disaster risk in Adams County, Iowa
Iowa · population 3,704 · FIPS 19003
Overall: very low risk
Adams County has a composite risk score of 20.4 out of 100 — higher than 20% of US counties. It ranks 85 of 99 in Iowa (1 = highest risk). Its highest-rated hazards are drought, cold wave, heat wave.
Drought now: No: no drought or dryness
No. On the U.S. Drought Monitor map valid 13 October 2026, no part of Adams County is in drought or abnormally dry (none of D0 to D4). That has been so for 9 weeks in a row.
Drought in Adams 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. |
Very low 20.4 |
| Expected annual loss About $8.0 million a year, on average, across all 18 hazards. |
Very low 26.5 |
| Social vulnerability Higher means people may find it harder to prepare and recover. |
Relatively low 28.1 |
| Community resilience Higher means a stronger ability to prepare, adapt and recover. |
Relatively moderate 58.3 |
Risk by hazard
FEMA's risk rating for each of 18 natural hazards in Adams County, highest first. "Not applicable" means the hazard is not modelled here.
| Hazard | Risk rating and score |
|---|---|
| Drought | Relatively high 95 |
| Cold wave | Relatively low 56 |
| Heat wave | Relatively low 53 |
| Hail | Relatively low 50 |
| Tornado | Relatively low 38 |
| Strong wind | Relatively low 27 |
| Landslide | Very low 56 |
| Wildfire | Very low 31 |
| Winter weather | Very low 19 |
| Ice storm | Very low 18 |
| Inland (riverine) flooding | Very low 11 |
| Earthquake | Very low 8 |
| Hurricane | Very low 8 |
| Lightning | Very low 5 |
| Avalanche | Not applicable |
| Coastal flooding | Not applicable |
| Tsunami | Not applicable |
| Volcanic activity | Not applicable |
FEMA disaster declarations for Adams County
Federal declarations that designated Adams County, since 1 Jan 2024 (the period this site keeps from OpenFEMA). Older declarations are in FEMA's own dataset.
Yes. Adams County has been named in 1 FEMA declaration since 1 Jan 2024. The latest is DR-4784-IA (Severe Storms, Tornadoes, and Flooding), declared 24 May 2024.
| Declaration | Kind | Incident | Declared | Individual assistance here |
|---|---|---|---|---|
| DR-4784-IA | Major disaster | Severe Storms, Tornadoes, and Flooding | 24 May 2024 | Yes |
All FEMA declarations in Iowa, 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 Adams County, Iowa?
FEMA's National Risk Index rates the overall risk in Adams County as very low, with a score of 20.4 out of 100 (higher than 20% of US counties). That is a comparison with other US counties, not a forecast.
What are the biggest natural hazards in Adams County?
The hazards rated highest for Adams County are drought (relatively high), cold wave (relatively low), heat wave (relatively low).
What is the flood risk in Adams County?
FEMA rates inland (river and rain) flooding risk in Adams County as very low. For a specific property, check the FEMA flood map and your local floodplain office.
Has Adams County had a FEMA disaster declaration?
Yes. Adams County has been named in 1 FEMA declaration since 1 Jan 2024. The latest is DR-4784-IA (Severe Storms, Tornadoes, and Flooding), declared 24 May 2024.
Is Adams County in a drought?
No. On the U.S. Drought Monitor map valid 13 October 2026, no part of Adams County is in drought or abnormally dry (none of D0 to D4). That has been so for 9 weeks in a row.
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