Johnson County, Arkansas
Natural disaster risk, federal disaster history and flood insurance facts.
Johnson County, Arkansas has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 58% of US counties. It ranks 35th of 75 counties in Arkansas. The costliest hazards here are inland flooding, tornadoes and ice storms. FEMA estimates about $14 million a year in expected losses, or roughly $557 per resident. Since 1972 it has been included in 24 federal disaster or emergency declarations for natural events (16 major disasters). The most recent was in January 2026 (severe winter storm). Only 46 homes here carry federal flood insurance.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Johnson 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.
- Trim branches that hang over the roof or power lines.
- Plan for several days without power.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 62.0 | $7M | ||
| Tornado | 78.9 | $3M | ||
| Ice storm | 95.1 | $1M | ||
| Heat wave | 79.3 | $1M | ||
| Cold wave | 43.6 | $537K | ||
| Earthquake | 69.1 | $535K | ||
| Strong wind | 60.5 | $530K | ||
| Lightning | 76.0 | $444K | ||
| Hail | 48.1 | $173K | ||
| Wildfire | 67.4 | $102K | ||
| Drought | 46.5 | $82K | ||
| Winter weather | 66.1 | $80K | ||
| Hurricane | 36.4 | $17K | ||
| Landslide | 67.1 | $3K |
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 high and community resilience is very low in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Johnson County. 2020s bar runs to November 2026.
By type
Most recent
Show all 24
Arkansas also had 8 statewide declarations that did not name single counties.
Storm history since 1954
Tornado risk by county ›The National Weather Service has logged 551 storm reports in Johnson County since 1954, with 5 deaths and 150 injuries and about $32.2 million in reported damage. The strongest on record here was an EF3 tornado on May 24, 2011 near New Spadra.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| May 24, 2011 | EF3 | New Spadra | 4 / 1 |
| Apr 7, 1980 | F3 | – | 76 / 0 |
| Feb 15, 1954 | F3 | – | 24 / 0 |
| Apr 14, 1960 | F3 | – | 0 / 0 |
| Jun 6, 1974 | F3 | – | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| May 24, 2011 | Tornado | New Spadra | $13M |
| May 24, 2011 | Tornado | Coal Hill | $6M |
| Apr 7, 1980 | Tornado | – | $3M |
| Nov 18, 1985 | Tornado | – | $3M |
| Nov 15, 1988 | Tornado | – | $3M |
| Oct 29, 2009 | Flash Flood | Oark | $2M |
Source: NOAA Storm Events Database, county-based reports through Jun 22, 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.
Hurricanes and tropical storms
Hurricane risk by county ›Since 2008, 0 hurricanes and 1 tropical storm have passed within 65 miles of the center of Johnson County, 1 of them since 1950. The strongest was Tropical Storm Ike (2008), with top winds near 45 mph about 57 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 14, 2008 | Ike | Tropical storm, 45 mph | 57 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 14, 2008 | Ike | Tropical storm, 45 mph | 57 mi |
Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.
Flood insurance in Johnson 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 Johnson 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; 11,555 housing units.
Compare in Arkansas
All 75 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Pulaski County | Inland flooding | |
| Benton County | Inland flooding | |
| Washington County | Heat wave | |
| Sebastian County | Inland flooding | |
| Faulkner County | Tornado | |
| Saline County | Inland flooding | |
| Craighead County | Earthquake | |
| Garland County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Pope County | 17 | |
| Logan County | 21 | |
| Franklin County | 25 | |
| Madison County | 28 | |
| Newton County | 28 |
Common questions about Johnson County
What is the biggest natural hazard in Johnson County?
Inland flooding has the highest expected yearly losses in Johnson County, about $6.9 million a year in FEMA's estimate. Tornado is second at $2.7 million.
How many federal disasters has Johnson County had?
Johnson County has been included in 24 federal disaster or emergency declarations for natural events since 1972, including 16 major disasters. The most recent was Severe Winter Storm in January 2026.
Is Johnson County a high-risk place to live?
Its overall rating is Relatively Low, 35th highest of 75 in Arkansas. 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 Johnson County?
Standard home insurance does not cover flooding. About 1 in 250 homes in Johnson 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 Johnson County had?
NOAA records list 39 tornadoes in Johnson County since 1950. The strongest was an EF3 tornado on May 24, 2011 near New Spadra. The weather service has also logged 177 hail reports and 56 floods here.
How many hurricanes have hit Johnson County?
NOAA's hurricane records show 0 hurricanes and 1 tropical storm passing within 65 miles of the center of Johnson County. The strongest was Tropical Storm Ike (2008), with winds near 45 mph.
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.