riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Dallas County Disaster Risk

Dallas County, Alabama

FEMA Risk Rating

Relatively Low

National Percentile

71th

of 3,144 counties

State Rank

#27

of 67 (1 = highest risk)

Flood Risk

75th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 75% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 42% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 83% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 81% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 77% of US counties

Risk Overview

About Natural Disaster Risk in Dallas County, Alabama

Dallas Faces Moderately Elevated Risk

Dallas County scores 70.77 on composite risk, earning a Relatively Low rating while exceeding the national average. This position reflects meaningful exposure to tornadoes, earthquakes, floods, and hurricanes across the county.

Above-Average Risk Statewide

Dallas's 70.77 score sits about 9 points above Alabama's 61.54 state average, placing it in the upper-moderate range statewide. The gap indicates residents experience greater multi-hazard exposure than the typical Alabama county.

More Exposed Than Most Regional Peers

Dallas (70.77) faces higher composite risk than Colbert (80.66) to the north and Dale (67.75) to the south, though all three share significant tornado exposure. Compared to southern Alabama counties like Crenshaw (34.38), Dallas occupies a distinctly higher-risk position.

Tornadoes and Earthquakes Lead Hazards

Tornado risk scores 83.27 while earthquakes rank second at 81.11, reflecting Dallas's location in a seismically active region with strong rotational storm exposure. Floods (75.19) and hurricanes (77.10) compound vulnerability throughout the year.

Earthquake and Tornado Insurance Essential

The 81.11 earthquake and 83.27 tornado scores demand comprehensive coverage; add earthquake insurance immediately, as standard policies exclude it entirely. Ensure wind damage protection in your homeowners policy and review flood coverage if you're in any mapped flood zone.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Dallas County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    83th percentile
  2. #2
    EarthquakePrepare
    81th percentile
  3. #3
    HurricanePrepare
    77th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Dallas County

Risk Verdict

Dallas County's FEMA risk score places it at the 71th percentile nationally, indicating lower-than-typical exposure for a U.S. county. A moderate composite score often means one or two hazard categories are doing the heavy lifting — knowing which ones matters for preparation.

Hazard Breakdown

Tornado risk is Dallas County's dominant natural hazard, ranked at the 83th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 81th percentile nationally. Additional tracked hazards include hurricane (77th percentile), flood (75th percentile), wildfire (42th percentile).

Preparedness Context

Tornado exposure at the 83th percentile nationally makes Dallas County a county where a battery-powered weather radio — not just smartphone apps — is a worthwhile household investment, given that mobile networks often fail during severe storms. The secondary earthquake hazard at the 81th percentile nationally adds seasonal complexity to Dallas County's preparedness calendar, since earthquake and tornado risk often peak at different points in the year. In Dallas County, tornado watches indicate favorable atmospheric conditions while warnings mean rotation has been detected — households benefit from understanding this distinction so they shelter immediately on a warning, not after seeking visual confirmation.

Regional Context

The Alabama county average is 9.2 composite points below Dallas County's score, a gap that reflects the county's elevated position in the state's hazard distribution.

Is your household prepared for Dallas County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Dallas County, AL?
Dallas County has a FEMA National Risk Index rating of Relatively Low, placing it in the 71th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Dallas County?
Dallas County is evaluated for five major natural hazard types: tornado (83th percentile), earthquake (81th percentile), hurricane (77th percentile), flooding (75th percentile), wildfire (42th percentile). The highest-risk hazard is tornado at the 83th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Dallas County risk compare to the Alabama average?
Dallas County's composite risk percentile is 71th, compared to the Alabama state average of 62th percentile. The state's overall risk rating is Relatively Low. This means Dallas County faces higher natural disaster risk than the typical county in Alabama.
Is Dallas County at risk for tornado?
Yes, Dallas County's tornado risk is at the 83th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Dallas County is at the 75th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Why is Dallas County higher risk than average?
Dallas County's composite risk score of 71th percentile is above the Alabama state average of 62th percentile. This elevated risk is driven by tornado exposure (83th percentile), along with earthquake and hurricane and flooding risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Source

Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.

Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.