Phelps County, MO

FEMA National Risk Index scores, disaster declarations & hazard data

Population: 44,560 · Cities: Rolla

Relatively Low Riskier than 54% of US counties
Very Low Relatively Low Relatively Moderate Relatively High Very High

Phelps County has experienced 25 federally declared disasters since 1976, most recently Severe Storms, Tornadoes, Straight-Line Winds, And Flooding in 2025. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.

Phelps County's highest-rated hazards are heat wave, ice storm, and earthquake, with its top risk rated "Relatively Moderate" by FEMA's National Risk Index. Recorded storm events have increased 63% 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. Phelps County has been designated in 25 declarations since 1976, covering 6 disaster types including severe storm (13), flood (5), severe ice storm (3).

2002–2026
Year Type Event name
2025 Severe Storm Severe Storms, Tornadoes, Straight-Line Winds, And Flooding
2025 Severe Storm Severe Storms, Straight-Line Winds, Tornadoes, And Wildfires
2020 Biological Covid-19 Pandemic
2020 Biological Covid-19
2017 Flood Severe Storms, Tornadoes, Straight-Line Winds And Flooding
2016 Flood Severe Storms, Tornadoes, Straight-Line Winds, And Flooding
2016 Flood Severe Storms, Tornadoes, Straight-Line Winds, And Flooding
2015 Severe Storm Severe Storms, Tornadoes, Straight-Line Winds, And Flooding
2013 Severe Storm Severe Storms, Straight-Line Winds And Flooding
2011 Severe Storm Severe Winter Storm

Showing the 10 most recent of 25 total declarations since 1976.

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 57.9 0 0
Inland Flooding Relatively Low 52.4 35 0 $3.0M
Coastal Flooding Not Applicable 0 0
Earthquake Relatively Low 79.5
Heat Wave Relatively Moderate 89.9 0 0
Tornado Relatively Low 38.5 10 0 $2.6M
Hurricane Very Low 26.3 0 0
Hail Relatively Low 34.4 56 0 $25K
Strong Wind Relatively Moderate 59.3 0 0
Winter Weather Relatively Moderate 76.8 0 0
Ice Storm Relatively High 86.6
Cold Wave Relatively Moderate 77.6
Lightning Relatively Moderate 59.6 1 0 $25K
Drought Very Low 29.7 0 0
Landslide Relatively Low 69.4 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

Phelps County ranks in the 64th 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 64th Moderate
Socioeconomic status 63rd Moderate
Household characteristics 35th Low
Racial & ethnic minority status 40th Low
Housing type & transportation 84th High

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 60th Relatively High
Risk to homes 57th Relatively Moderate
Buildings in direct exposure zone 71.5%

NOAA tracked 100 weather events in this county over 2016–2025: 38 in 2016–20 vs 62 in 2021–25 (+63% — frequency increasing).

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

Compare Phelps County with other counties → All Missouri counties →

Frequently asked questions

What natural hazards pose the greatest risk in Phelps County?

According to the FEMA National Risk Index, the highest-risk hazards in Phelps County, Missouri are heat wave, ice storm, and earthquake. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.

Has Phelps County received federal disaster declarations?

Yes. Phelps County has received 25 federal disaster declarations since 1976, including declarations in 2025. The most common disaster type on record is severe storm (13 declarations).

Has Phelps County had any FEMA disaster declarations in 2024, 2025, or 2026?

Yes. Recent federal disaster declarations for Phelps County include Severe Storms, Tornadoes, Straight-Line Winds, And Flooding (2025), Severe Storms, Straight-Line Winds, Tornadoes, And Wildfires (2025). See the declarations table above for the full history since 1976.

How does Phelps County's natural hazard risk compare to nearby counties?

Among neighboring counties, Texas County, MO has the highest overall natural hazard risk (Relatively Low) and Maries County, MO has the lowest (Very Low). Phelps County is rated Relatively Low overall.

How is Phelps County's composite disaster risk index calculated?

Phelps 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. Phelps County's composite score of 54 means its overall natural hazard risk is higher than 54% of US counties.

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