Morton County, ND
FEMA National Risk Index scores, disaster declarations & hazard data
Morton County has experienced 27 federally declared disasters since 1966, most recently Severe Storm, Tornadoes, And Straight-Line Winds in 2025. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Morton County's highest-rated hazards are hail, winter weather, and ice storm, with its top risk rated "Relatively High" by FEMA's National Risk Index. Recorded storm events have decreased 35% over the past five years compared to the prior five-year period. Community vulnerability is relatively low (5th percentile nationally), indicating stronger recovery capacity than most US counties.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Morton County has been designated in 27 declarations since 1966, covering 4 disaster types including flood (16), severe storm (8), biological (2).
| Year | Type | Event name |
|---|---|---|
| 2025 | Severe Storm | Severe Storm, Tornadoes, And Straight-Line Winds |
| 2023 | Flood | Flooding |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2019 | Flood | Flooding |
| 2014 | Severe Storm | Severe Winter Storm |
| 2011 | Flood | Flooding |
| 2011 | Flood | Flooding |
| 2010 | Severe Storm | Severe Winter Storm |
| 2010 | Severe Storm | Severe Winter Storm |
Showing the 10 most recent of 27 total declarations since 1966.
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 | Relatively Low | 73.9 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 40.4 | 3 | 0 | $525K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 6.9 | — | — | — |
| Heat Wave | Very Low | 28 | 0 | 0 | — |
| Tornado | Relatively Low | 57.3 | 8 | 0 | $1.5M |
| Hurricane | Not Applicable | — | 0 | 0 | — |
| Hail | Relatively High | 95.8 | 108 | 0 | $3.7M |
| Strong Wind | Relatively Low | 51.3 | 0 | 0 | — |
| Winter Weather | Relatively High | 95.5 | 0 | 0 | — |
| Ice Storm | Relatively High | 85 | — | — | — |
| Cold Wave | Relatively Moderate | 80.5 | — | — | — |
| Lightning | Very Low | 23.7 | 0 | 0 | — |
| Drought | Very Low | 23.4 | 0 | 0 | — |
| Landslide | Very Low | 38.4 | 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
Morton County ranks in the 5th percentile (Very low) 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 | 5th | Very low |
| Socioeconomic status | 6th | Very low |
| Household characteristics | 3rd | Very low |
| Racial & ethnic minority status | 36th | Low |
| Housing type & transportation | 27th | Low |
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 | 51st | Relatively Moderate |
| Risk to homes | 54th | Relatively Moderate |
| Buildings in direct exposure zone | 48.6% | — |
NOAA tracked 119 weather events in this county over 2016–2025: 72 in 2016–20 vs 47 in 2021–25 (-35% — 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 Morton County?
According to the FEMA National Risk Index, the highest-risk hazards in Morton County, North Dakota are hail, winter weather, and ice storm. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Morton County received federal disaster declarations?
Yes. Morton County has received 27 federal disaster declarations since 1966, including declarations in 2025. The most common disaster type on record is flood (16 declarations).
Has Morton County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Morton County include Severe Storm, Tornadoes, And Straight-Line Winds (2025). See the declarations table above for the full history since 1966.
How does Morton County's natural hazard risk compare to nearby counties?
Among neighboring counties, Burleigh County, ND has the highest overall natural hazard risk (Relatively Moderate) and Oliver County, ND has the lowest (Very Low). Morton County is rated Relatively Low overall.
How is Morton County's composite disaster risk index calculated?
Morton 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. Morton County's composite score of 50 means its overall natural hazard risk is higher than 50% of US counties.