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

Cameron County Disaster Risk

Cameron County, Texas

FEMA Risk Rating

Relatively High

National Percentile

97th

of 3,144 counties

State Rank

#9

of 254 (1 = highest risk)

Flood Risk

93th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 93% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 84% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 85% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 50% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively High

Higher than 99% of US counties

Risk Overview

About Natural Disaster Risk in Cameron County, Texas

Cameron County faces exceptional risk

Cameron County's composite risk score of 97.30 ranks as exceptionally high both nationally and statewide, earning a Relatively High rating. Nearly every major hazard type presents significant exposure in this southernmost Texas county.

Texas's most exposed county overall

At 97.30, Cameron County scores nearly double Texas's state average of 49.00, representing the state's highest natural disaster risk. Hurricane (99.04), flood (92.81), tornado (85.15), and wildfire (83.78) risks all rank among state highs.

Dramatically riskier than inland counties

Cameron County's 97.30 score vastly exceeds all neighboring counties, including coastal Calhoun County's 66.25 and inland peers. Its position at the southernmost tip of Texas, directly in hurricane paths, creates this unique exposure profile.

Hurricanes, floods, and tornadoes converge

Hurricanes pose the most acute threat at 99.04, with Category 4 and 5 storms regularly striking this southernmost county. Flooding (92.81) amplifies hurricane damage, while tornadoes (85.15) threaten across seasons.

Comprehensive coverage is non-negotiable

Cameron County residents must carry hurricane-specific homeowners insurance, separate flood insurance, and backup power—standard policies leave dangerous gaps. Reinforced concrete construction, impact-resistant windows, and elevated utilities are essential investments in this highest-risk county.

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

Preparedness Guide

What to Prepare for in Cameron County

Top Hazards by Exposure

  1. #1
    HurricanePrepare
    99th percentile
  2. #2
    FloodPrepare
    93th percentile
  3. #3
    TornadoPrepare
    85th percentile

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

Risk Advisory: Cameron County

Risk Verdict

Natural hazard exposure in Cameron County is notably high, placing it at the 97th percentile among all U.S. counties. Cameron County's elevated composite score reflects cumulative multi-hazard exposure; households should prepare for the county's two or three primary hazard types.

Hazard Breakdown

Hurricane risk is Cameron County's dominant natural hazard, ranked at the 99th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 93th percentile nationally. Additional tracked hazards include tornado (85th percentile), wildfire (84th percentile), earthquake (50th percentile).

Preparedness Context

At the 99th percentile nationally for hurricane risk, Cameron County is in a zone where flood insurance matters beyond the primary wind risk: NFIP flood insurance requires a 30-day waiting period before taking effect, making off-season enrollment the correct timing. Cameron County's flood exposure at the 93th percentile nationally adds a hazard layer that can persist or intensify after hurricane-force winds have passed, particularly in low-lying inland areas. For Cameron County households, the hurricane preparedness calendar matters: flood insurance has a 30-day waiting period, wind-hardening retrofits take weeks to schedule, and evacuation route scouting is best done before a storm watch is issued.

Regional Context

A composite score 48.3 points above the Texas state average puts Cameron County in a higher-risk category than most counties in the state.

Is your household prepared for Cameron 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 Cameron County, TX?
Cameron County has a FEMA National Risk Index rating of Relatively High, placing it in the 97th 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 Cameron County?
Cameron County is evaluated for five major natural hazard types: hurricane (99th percentile), flooding (93th percentile), tornado (85th percentile), wildfire (84th percentile), earthquake (50th percentile). The highest-risk hazard is hurricane at the 99th 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 Cameron County risk compare to the Texas average?
Cameron County's composite risk percentile is 97th, compared to the Texas state average of 49th percentile. The state's overall risk rating is Relatively Low. This means Cameron County faces higher natural disaster risk than the typical county in Texas.
Is Cameron County at risk for hurricane?
Yes, Cameron County's hurricane risk is at the 99th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Cameron County is at the 93th 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 Cameron County higher risk than average?
Cameron County's composite risk score of 97th percentile is above the Texas state average of 49th percentile. This elevated risk is driven by hurricane exposure (99th percentile), along with flooding and tornado and wildfire and earthquake 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.