Porter County, Indiana
Natural disaster risk, federal disaster history and flood insurance facts.
Porter County, Indiana has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 81% of US counties. It ranks 10th of 92 counties in Indiana. The costliest hazards here are inland flooding, tornadoes and cold waves. FEMA estimates about $58 million a year in expected losses, or roughly $336 per resident. Since 1991 it has been included in 14 federal disaster or emergency declarations for natural events (8 major disasters). The most recent was in August 2026 (severe storms, straight-line winds, tornadoes and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (118 policies). Since 1978, federal flood insurance has paid about $2.3 million on 187 claims here, including $763,000 for floods in 2008.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Porter County
- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
- Turn on emergency alerts on your phone and keep a weather radio.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 80.0 | $25M | ||
| Tornado | 94.4 | $14M | ||
| Cold wave | 93.8 | $13M | ||
| Strong wind | 91.2 | $3M | ||
| Heat wave | 70.4 | $1M | ||
| Earthquake | 69.4 | $971K | ||
| Lightning | 56.8 | $387K | ||
| Winter weather | 73.2 | $198K | ||
| Hail | 31.6 | $166K | ||
| Wildfire | 60.5 | $112K | ||
| Ice storm | 47.5 | $98K | ||
| Hurricane | 13.2 | $4K | ||
| Coastal flooding | 27.4 | $4K | ||
| Landslide | 54.4 | $2K |
Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is very low and community resilience is very high in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Porter County. 2020s bar runs to November 2026.
By type
Most recent
Show all 14
Indiana also had 5 statewide declarations that did not name single counties.
Storm history since 1958
Tornado risk by county ›The National Weather Service has logged 453 storm reports in Porter County since 1958, with 12 deaths and 17 injuries and about $49.8 million in reported damage. The strongest on record here was an F3 tornado on April 11, 1965.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Apr 11, 1965 | F3 | – | 0 / 0 |
| Mar 12, 1976 | F3 | – | 0 / 0 |
| Oct 24, 1967 | F3 | – | 0 / 0 |
| Apr 30, 1962 | F3 | – | 0 / 0 |
| Jun 11, 2026 | EF3 | Hebron | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Apr 11, 1965 | Tornado | – | $25M |
| Aug 22, 2014 | Flash Flood | South Haven | $10M |
| Feb 20, 2018 | Flood | Clanricarde | $4M |
| Aug 15, 2007 | Thunderstorm Wind | Hurlburt | $3M |
| Sep 14, 2008 | Flash Flood | Ogden Dunes | $2M |
| Aug 19, 2009 | Tornado | Chesterton | $2M |
Source: NOAA Storm Events Database, county-based reports through Jul 27, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.
Flood insurance in Porter County
Check your address flood zone ›National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.
Homes in Porter County
Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 72,662 housing units.
Compare in Indiana
All 92 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Marion County | Inland flooding | |
| Lake County | Inland flooding | |
| Allen County | Inland flooding | |
| Hamilton County | Inland flooding | |
| St. Joseph County | Inland flooding | |
| Elkhart County | Inland flooding | |
| Tippecanoe County | Inland flooding | |
| Vanderburgh County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Cook County, IL | 22 | |
| Lake County | 22 | |
| Berrien County, MI | 10 | |
| LaPorte County | 17 | |
| Jasper County | 17 | |
| Starke County | 16 |
Cities in Porter County
Common questions about Porter County
What is the biggest natural hazard in Porter County?
Inland flooding has the highest expected yearly losses in Porter County, about $25.2 million a year in FEMA's estimate. Tornado is second at $14.1 million.
How many federal disasters has Porter County had?
Porter County has been included in 14 federal disaster or emergency declarations for natural events since 1991, including 8 major disasters. The most recent was Severe Storms, Straight-Line Winds, Tornadoes, and Flooding in August 2026.
Is Porter County a high-risk place to live?
Its overall rating is Relatively Moderate, 10th highest of 92 in Indiana. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.
Do I need flood insurance in Porter County?
Standard home insurance does not cover flooding. About 1 in 500 homes in Porter County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.
How many tornadoes has Porter County had?
NOAA records list 29 tornadoes in Porter County since 1950. The strongest was an F3 tornado on April 11, 1965. The weather service has also logged 91 hail reports and 56 floods here.
Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.