Marion County, Kansas
Natural disaster risk, federal disaster history and flood insurance facts.
Marion County, Kansas has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 62% of US counties. It ranks 33rd of 105 counties in Kansas. The costliest hazards here are inland flooding, tornadoes and strong wind. FEMA estimates about $12 million a year in expected losses, or roughly $1,036 per resident. Since 1965 it has been included in 20 federal disaster or emergency declarations for natural events (18 major disasters). The most recent was in April 2024 (severe winter storm). Only 12 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $273,000 on 18 claims here.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Marion 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.
- Secure outdoor furniture and trash bins before storms.
- Have trees near the house checked.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 36.0 | $4M | ||
| Tornado | 69.1 | $3M | ||
| Strong wind | 73.9 | $1M | ||
| Ice storm | 90.4 | $1M | ||
| Heat wave | 70.1 | $948K | ||
| Hail | 80.1 | $904K | ||
| Cold wave | 29.6 | $415K | ||
| Wildfire | 78.1 | $350K | ||
| Lightning | 57.2 | $313K | ||
| Winter weather | 74.3 | $165K | ||
| Drought | 37.5 | $55K | ||
| Earthquake | 26.6 | $53K | ||
| Landslide | 35.0 | $468 |
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 relatively 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 Marion County. 2020s bar runs to November 2026.
By type
Most recent
Show all 20
Kansas also had 10 statewide declarations that did not name single counties.
Storm history since 1953
Tornado risk by county ›The National Weather Service has logged 723 storm reports in Marion County since 1953, with 1 death and 20 injuries and about $47.9 million in reported damage. The strongest on record here was an F5 tornado on March 13, 1990.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Mar 13, 1990 | F5 | – | 0 / 1 |
| Apr 2, 1956 | F3 | – | 1 / 0 |
| Apr 2, 1956 | F3 | – | 1 / 0 |
| Apr 2, 1956 | F3 | – | 0 / 0 |
| Apr 2, 1956 | F3 | – | 2 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Mar 13, 1990 | Tornado | – | $25M |
| Apr 2, 1956 | Tornado | – | $3M |
| Apr 2, 1956 | Tornado | – | $3M |
| Apr 2, 1956 | Tornado | – | $3M |
| Apr 2, 1956 | Tornado | – | $3M |
| Apr 2, 1956 | Tornado | – | $3M |
Source: NOAA Storm Events Database, county-based reports through Jul 4, 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 Marion 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 Marion 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; 5,693 housing units.
Compare in Kansas
All 105 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Johnson County | Inland flooding | |
| Sedgwick County | Inland flooding | |
| Shawnee County | Inland flooding | |
| Wyandotte County | Inland flooding | |
| Douglas County | Inland flooding | |
| Leavenworth County | Inland flooding | |
| Riley County | Inland flooding | |
| Butler County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Butler County | 27 | |
| Saline County | 17 | |
| Harvey County | 22 | |
| McPherson County | 17 | |
| Dickinson County | 15 | |
| Morris County | 26 | |
| Chase County | 20 |
Common questions about Marion County
What is the biggest natural hazard in Marion County?
Inland flooding has the highest expected yearly losses in Marion County, about $4.4 million a year in FEMA's estimate. Tornado is second at $2.5 million.
How many federal disasters has Marion County had?
Marion County has been included in 20 federal disaster or emergency declarations for natural events since 1965, including 18 major disasters. The most recent was Severe Winter Storm in April 2024.
Is Marion County a high-risk place to live?
Its overall rating is Very Low, 33rd highest of 105 in Kansas. 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 Marion County?
Standard home insurance does not cover flooding. About 1 in 1000 homes in Marion 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 Marion County had?
NOAA records list 55 tornadoes in Marion County since 1950. The strongest was an F5 tornado on March 13, 1990. The weather service has also logged 340 hail reports and 61 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.