Natural disaster risk in Porter County, Indiana
Indiana · population 173,161 · FIPS 18127
Overall: relatively moderate risk
Porter County has a composite risk score of 81.4 out of 100 — higher than 81% of US counties. It ranks 11 of 92 in Indiana (1 = highest risk). Its highest-rated hazards are tornado, cold wave, strong wind.
Drought now: No: no drought or dryness
No. On the U.S. Drought Monitor map valid 13 October 2026, no part of Porter County is in drought or abnormally dry (none of D0 to D4). That has been so for 4 weeks in a row.
Drought in Porter 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 moderate 81.4 |
| Expected annual loss About $58.2 million a year, on average, across all 18 hazards. |
Relatively moderate 85.8 |
| Social vulnerability Higher means people may find it harder to prepare and recover. |
Very low 13.4 |
| Community resilience Higher means a stronger ability to prepare, adapt and recover. |
Very high 89 |
Risk by hazard
FEMA's risk rating for each of 18 natural hazards in Porter County, highest first. "Not applicable" means the hazard is not modelled here.
| Hazard | Risk rating and score |
|---|---|
| Tornado | Relatively high 94 |
| Cold wave | Relatively high 93 |
| Strong wind | Relatively high 91 |
| Inland (riverine) flooding | Relatively moderate 79 |
| Winter weather | Relatively moderate 73 |
| Lightning | Relatively moderate 56 |
| Heat wave | Relatively low 70 |
| Earthquake | Relatively low 69 |
| Ice storm | Relatively low 47 |
| Wildfire | Very low 60 |
| Landslide | Very low 54 |
| Hail | Very low 31 |
| Coastal flooding | Very low 27 |
| Hurricane | Very low 13 |
| Avalanche | Not applicable |
| Drought | No rating |
| Tsunami | Insufficient data |
| Volcanic activity | Not applicable |
FEMA disaster declarations for Porter County
Federal declarations that designated Porter County, since 1 Jan 2024 (the period this site keeps from OpenFEMA). Older declarations are in FEMA's own dataset.
Yes. Porter County has been named in 3 FEMA declarations since 1 Jan 2024. The latest is DR-4933-IN (Severe Storms, Straight-Line Winds, Tornadoes, and Flooding), declared 25 Aug 2026.
| Declaration | Kind | Incident | Declared | Individual assistance here |
|---|---|---|---|---|
| DR-4933-IN | Major disaster | Severe Storms, Straight-Line Winds, Tornadoes, and Flooding | 25 Aug 2026 | Yes |
| EM-3651-IN | Emergency | Severe Storms, Straight-Line Winds, Tornadoes, and Flooding | 15 Aug 2026 | No |
| EM-3641-IN | Emergency | Severe Winter Storm | 24 Jan 2026 | No |
All FEMA declarations in Indiana, 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 Porter County, Indiana?
FEMA's National Risk Index rates the overall risk in Porter County as relatively moderate, with a score of 81.4 out of 100 (higher than 81% of US counties). That is a comparison with other US counties, not a forecast.
What are the biggest natural hazards in Porter County?
The hazards rated highest for Porter County are tornado (relatively high), cold wave (relatively high), strong wind (relatively high).
What is the flood risk in Porter County?
FEMA rates inland (river and rain) flooding risk in Porter County as relatively moderate, and coastal flooding risk as very low. For a specific property, check the FEMA flood map and your local floodplain office.
Has Porter County had a FEMA disaster declaration?
Yes. Porter County has been named in 3 FEMA declarations since 1 Jan 2024. The latest is DR-4933-IN (Severe Storms, Straight-Line Winds, Tornadoes, and Flooding), declared 25 Aug 2026.
Is Porter County in a drought?
No. On the U.S. Drought Monitor map valid 13 October 2026, no part of Porter County is in drought or abnormally dry (none of D0 to D4). That has been so for 4 weeks in a row.
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