Natural disaster risk in Macomb County, Michigan
Michigan · population 880,347 · FIPS 26099
Overall: relatively high risk
Macomb County has a composite risk score of 96.7 out of 100 — higher than 96% of US counties. It ranks 3 of 83 in Michigan (1 = highest risk). Its highest-rated hazards are cold wave, tornado, ice storm.
Drought now: No, but abnormally dry (D0)
No drought, but abnormally dry. On the U.S. Drought Monitor map valid 13 October 2026, 100% of Macomb County is D0 Abnormally Dry and none of it is in drought (D1 to D4). Some of it has been abnormally dry or worse for 9 weeks in a row.
Drought in Macomb 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 96.7 |
| Expected annual loss About $268.0 million a year, on average, across all 18 hazards. |
Relatively high 97.1 |
| Social vulnerability Higher means people may find it harder to prepare and recover. |
Relatively low 27.1 |
| Community resilience Higher means a stronger ability to prepare, adapt and recover. |
Very high 80.7 |
Risk by hazard
FEMA's risk rating for each of 18 natural hazards in Macomb County, highest first. "Not applicable" means the hazard is not modelled here.
| Hazard | Risk rating and score |
|---|---|
| Cold wave | Very high 99 |
| Tornado | Very high 99 |
| Ice storm | Very high 98 |
| Strong wind | Very high 98 |
| Inland (riverine) flooding | Relatively high 97 |
| Lightning | Relatively high 88 |
| Winter weather | Relatively high 88 |
| Heat wave | Relatively moderate 94 |
| Hail | Relatively moderate 90 |
| Earthquake | Relatively low 83 |
| Coastal flooding | Relatively low 46 |
| Hurricane | Very low 49 |
| Wildfire | Very low 41 |
| Landslide | Very low 36 |
| Avalanche | Not applicable |
| Drought | No rating |
| Tsunami | Insufficient data |
| Volcanic activity | Not applicable |
FEMA disaster declarations for Macomb County
Federal declarations that designated Macomb County, since 1 Jan 2024 (the period this site keeps from OpenFEMA). Older declarations are in FEMA's own dataset.
Yes. Macomb County has been named in 1 FEMA declaration since 1 Jan 2024. The latest is DR-4757-MI (Severe Storms, Tornadoes, and Flooding), declared 8 Feb 2024.
| Declaration | Kind | Incident | Declared | Individual assistance here |
|---|---|---|---|---|
| DR-4757-MI | Major disaster | Severe Storms, Tornadoes, and Flooding | 8 Feb 2024 | Yes |
All FEMA declarations in Michigan, 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 Macomb County, Michigan?
FEMA's National Risk Index rates the overall risk in Macomb County as relatively high, with a score of 96.7 out of 100 (higher than 96% of US counties). That is a comparison with other US counties, not a forecast.
What are the biggest natural hazards in Macomb County?
The hazards rated highest for Macomb County are cold wave (very high), tornado (very high), ice storm (very high).
What is the flood risk in Macomb County?
FEMA rates inland (river and rain) flooding risk in Macomb County as relatively high, and coastal flooding risk as relatively low. For a specific property, check the FEMA flood map and your local floodplain office.
Has Macomb County had a FEMA disaster declaration?
Yes. Macomb County has been named in 1 FEMA declaration since 1 Jan 2024. The latest is DR-4757-MI (Severe Storms, Tornadoes, and Flooding), declared 8 Feb 2024.
Is Macomb County in a drought?
No drought, but abnormally dry. On the U.S. Drought Monitor map valid 13 October 2026, 100% of Macomb County is D0 Abnormally Dry and none of it is in drought (D1 to D4). Some of it has been abnormally dry or worse for 9 weeks in a row.
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