Allen County, KS
FEMA National Risk Index scores, disaster declarations & hazard data
Allen County has experienced 14 federally declared disasters since 1969, most recently Severe Storms, Straight-Line Winds, Tornadoes, And Flooding in 2024. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Allen County's highest-rated hazards are winter weather, ice storm, and drought, with its top risk rated "Relatively Low" by FEMA's National Risk Index. Recorded storm events have decreased 80% over the past five years compared to the prior five-year period.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Allen County has been designated in 14 declarations since 1969, covering 6 disaster types including severe storm (8), biological (2), hurricane (1).
| Year | Type | Event name |
|---|---|---|
| 2024 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding |
| 2024 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2019 | Severe Storm | Tornadoes And Flooding |
| 2019 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, Flooding,Landslides,And Mudslides |
| 2010 | Severe Storm | Severe Winter Storms And Snowstorm |
| 2008 | Severe Storm | Severe Winter Storms |
| 2007 | Severe Storm | Severe Storms And Flooding |
| 2005 | Hurricane | Hurricane Katrina Evacuation |
Showing the 10 most recent of 14 total declarations since 1969.
Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.
Risk by hazard type
| Hazard | Risk rating | Risk score | Recorded events | Deaths | Prop. damage |
|---|---|---|---|---|---|
| Wildfire | Very Low | 22.4 | 0 | 0 | — |
| Inland Flooding | Very Low | 26.3 | 28 | 0 | $702K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 28.8 | — | — | — |
| Heat Wave | Relatively Low | 54.4 | 1 | 0 | — |
| Tornado | Relatively Low | 35.3 | 1 | 0 | — |
| Hurricane | Very Low | 16.8 | 0 | 0 | — |
| Hail | Relatively Low | 44 | 47 | 0 | — |
| Strong Wind | Relatively Low | 45.5 | 0 | 0 | — |
| Winter Weather | Relatively Low | 58.1 | 0 | 0 | — |
| Ice Storm | Relatively Low | 57.6 | — | — | — |
| Cold Wave | Relatively Low | 30.9 | — | — | — |
| Lightning | Relatively Low | 48.8 | 0 | 0 | — |
| Drought | Relatively Low | 55.9 | 0 | 0 | — |
| Landslide | Very Low | 14.4 | 0 | 0 | — |
| Avalanche | Not Applicable | — | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Not Applicable | — | — | — | — |
Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.
Community vulnerability
Allen County ranks in the 59th percentile (Moderate) for community vulnerability — a measure of how hard disaster impacts tend to hit residents. Higher vulnerability means more displacement, worse health outcomes, and slower recovery after a disaster.
| SVI theme | Percentile | Vulnerability level |
|---|---|---|
| Overall | 59th | Moderate |
| Socioeconomic status | 57th | Moderate |
| Household characteristics | 64th | Moderate |
| Racial & ethnic minority status | 32nd | Low |
| Housing type & transportation | 61st | Moderate |
Source: CDC/ATSDR Social Vulnerability Index 2022. Percentiles compare counties nationally — higher means more vulnerable relative to other counties. See CDC SVI for full methodology.
Future risk outlook
| Wildfire metric | National percentile | Level |
|---|---|---|
| Burn probability | 48th | Relatively Moderate |
| Risk to homes | 49th | Relatively Moderate |
| Buildings in direct exposure zone | 50.4% | — |
NOAA tracked 77 weather events in this county over 2016–2025: 64 in 2016–20 vs 13 in 2021–25 (-80% — frequency decreasing).
Wildfire: USDA Forest Service Wildfire Risk to Communities (RDS-2020-0016-2) — modeled values, not annual forecasts. See wildfirerisk.org. Inland flood and heat projections pending data availability; coastal sea-level projections are available for select coastal counties below — see the data page.
Nearby counties
Frequently asked questions
What natural hazards pose the greatest risk in Allen County?
According to the FEMA National Risk Index, the highest-risk hazards in Allen County, Kansas are winter weather, ice storm, and drought. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has Allen County received federal disaster declarations?
Yes. Allen County has received 14 federal disaster declarations since 1969, including declarations in 2024. The most common disaster type on record is severe storm (8 declarations).
Has Allen County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Allen County include Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2024), Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2024). See the declarations table above for the full history since 1969.
How does Allen County's natural hazard risk compare to nearby counties?
Among neighboring counties, Bourbon County, KS has the highest overall natural hazard risk (Very Low) and Woodson County, KS has the lowest (Very Low). Allen County is rated Very Low overall.
How is Allen County's composite disaster risk index calculated?
Allen County's composite disaster risk index — officially FEMA's National Risk Index (NRI) — scores every US county on a 0–100 percentile scale across 18 natural hazard types, factoring in expected annual loss, social vulnerability, and community resilience. Allen County's composite score of 15 means its overall natural hazard risk is higher than 15% of US counties.