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

Aransas County Disaster Risk

Aransas County, Texas

FEMA Risk Rating

Relatively Low

National Percentile

61th

of 3,144 counties

State Rank

#102

of 254 (1 = highest risk)

Flood Risk

68th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 68% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 62% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 59% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 9% of US counties

Hurricane

Tropical cyclone and hurricane risk

Moderate

Higher than 91% of US counties

Risk Overview

About Natural Disaster Risk in Aransas County, Texas

Aransas faces moderate national risk

Aransas County scores 61.20 on the composite risk scale, placing it in the relatively low category but above the national average. This Gulf Coast location's risk profile reflects its coastal exposure to tropical hazards.

Above average for Texas

Aransas County's 61.20 composite score exceeds Texas's state average of 49.00, reflecting higher-than-typical natural disaster exposure for Texas communities. The county ranks among the state's more hazard-exposed regions.

Similar coastal risk pattern

Aransas County's 61.20 score reflects typical coastal Texas exposure, placing it near other Gulf-facing communities in the state's mid-range for composite risk. Neighboring coastal areas share comparable hurricane and flood vulnerabilities.

Hurricanes dominate coastal threats

Hurricane risk reaches 91.24 in Aransas County—exceptionally high and the dominant hazard for this Gulf Coast location. Flood risk (67.80) and wildfire risk (61.83) also exceed state averages, creating a multi-hazard exposure picture.

Hurricane coverage is non-negotiable

With hurricane risk at 91.24, verify your homeowners policy includes wind coverage or secure a separate windstorm policy through the Texas FAIR Plan if needed. Aransas County's elevated flood risk (67.80) makes flood insurance essential; contact your local FEMA office about flood zone status and available coverage options.

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

Preparedness Guide

What to Prepare for in Aransas County

Top Hazards by Exposure

  1. #1
    HurricanePrepare
    91th percentile
  2. #2
    FloodPrepare
    68th percentile
  3. #3
    WildfirePrepare
    62th percentile

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

Risk Advisory: Aransas County

Risk Verdict

With a national percentile rank of 61th, Aransas County faces below-average hazard exposure relative to U.S. counties as a whole. Above-average risk does not mean imminent danger; it signals that informed, hazard-specific preparedness has high value here.

Hazard Breakdown

Hurricane risk is Aransas County's dominant natural hazard, ranked at the 91th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 68th percentile nationally. Additional tracked hazards include wildfire (62th percentile), tornado (59th percentile), earthquake (9th percentile).

Preparedness Context

At the 91th percentile nationally for hurricane exposure, Aransas County households benefit from reviewing both homeowners and flood insurance coverage before storm season begins — standard policies often exclude storm surge, which is the leading cause of hurricane fatalities. Aransas County's flood exposure at the 68th percentile nationally adds a hazard layer that can persist or intensify after hurricane-force winds have passed, particularly in low-lying inland areas. Hurricane-force winds cause direct property damage, but storm surge causes the majority of hurricane-related deaths. Aransas County households near tidal water or low-elevation areas should verify whether they are in a storm surge risk zone.

Regional Context

At 12.2 points above the Texas state average, Aransas County carries meaningfully higher natural disaster exposure than a typical Texas county.

Is your household prepared for Aransas 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 Aransas County, TX?
Aransas County has a FEMA National Risk Index rating of Relatively Low, placing it in the 61th 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 Aransas County?
Aransas County is evaluated for five major natural hazard types: hurricane (91th percentile), flooding (68th percentile), wildfire (62th percentile), tornado (59th percentile), earthquake (9th percentile). The highest-risk hazard is hurricane at the 91th 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 Aransas County risk compare to the Texas average?
Aransas County's composite risk percentile is 61th, compared to the Texas state average of 49th percentile. The state's overall risk rating is Relatively Low. This means Aransas County faces higher natural disaster risk than the typical county in Texas.
Is Aransas County at risk for hurricane?
Yes, Aransas County's hurricane risk is at the 91th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Aransas County is at the 68th 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 Aransas County higher risk than average?
Aransas County's composite risk score of 61th percentile is above the Texas state average of 49th percentile. This elevated risk is driven by hurricane exposure (91th percentile), along with flooding and wildfire and tornado 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.