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

Montgomery County Disaster Risk

Montgomery County, Texas

FEMA Risk Rating

Relatively High

National Percentile

96th

of 3,144 counties

State Rank

#13

of 254 (1 = highest risk)

Flood Risk

96th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively High

Higher than 96% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 79% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively High

Higher than 99% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 66% of US counties

Hurricane

Tropical cyclone and hurricane risk

Moderate

Higher than 94% of US counties

Risk Overview

About Natural Disaster Risk in Montgomery County, Texas

Montgomery: Texas's High-Risk Hotspot

Montgomery County scores 95.74 on the national composite risk scale, earning a "Relatively High" rating and placing it nearly double Texas's state average of 49.00. This Houston-area county faces above-average disaster exposure across multiple hazard types simultaneously.

Among Highest-Risk Counties in Texas

Montgomery ranks in the top tier of Texas counties for natural disaster risk, competing with coastal and urban areas for the state's most significant multi-hazard exposure. The county's position reflects both its location in southeast Texas and its dense population concentration around the Houston metro area.

Riskier Than Most Houston-Area Peers

Montgomery's score of 95.74 exceeds most neighboring Houston-area counties, reflecting its unique combination of high flood, tornado, and hurricane vulnerability. The county's risk profile is shaped by proximity to the Gulf of Mexico, major river corridors, and an urbanized landscape vulnerable to rapid flooding.

Flooding, Tornadoes, Hurricanes Converge

Montgomery faces exceptional flood risk at 95.58, tornado risk at 99.43, and hurricane risk at 93.74—creating a triple threat during severe weather seasons. Even wildfire risk reaches 79.29, while earthquake risk at 66.00 is notably elevated compared to most Texas counties.

Comprehensive Coverage Is Essential Here

Montgomery residents should carry standard homeowners insurance plus separate flood and windstorm policies—flood insurance is critical in this high-inundation county. Invest in storm-resistant upgrades like reinforced garage doors, roof bracing, and elevated utilities if in a flood zone, and maintain a hurricane evacuation plan.

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

Preparedness Guide

What to Prepare for in Montgomery County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    99th percentile
  2. #2
    FloodPrepare
    96th percentile
  3. #3
    HurricanePrepare
    94th percentile

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

Risk Advisory: Montgomery County

Risk Verdict

Montgomery County's composite risk score ranks at the 96th percentile nationally, reflecting genuine multi-hazard exposure for residents. At this risk level, having a documented household preparedness plan — not just awareness — is the meaningful next step for Montgomery County residents.

Hazard Breakdown

Tornado risk is Montgomery County's dominant natural hazard, ranked at the 99th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 96th percentile nationally. Additional tracked hazards include hurricane (94th percentile), wildfire (79th percentile), earthquake (66th percentile).

Preparedness Context

Tornado exposure at the 99th percentile nationally makes Montgomery 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 flood hazard at the 96th percentile nationally adds seasonal complexity to Montgomery County's preparedness calendar, since flood and tornado risk often peak at different points in the year. In Montgomery 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 Texas county average is 46.7 composite points below Montgomery County's score, a gap that reflects the county's elevated position in the state's hazard distribution.

Is your household prepared for Montgomery 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 Montgomery County, TX?
Montgomery County has a FEMA National Risk Index rating of Relatively High, placing it in the 96th 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 Montgomery County?
Montgomery County is evaluated for five major natural hazard types: tornado (99th percentile), flooding (96th percentile), hurricane (94th percentile), wildfire (79th percentile), earthquake (66th percentile). The highest-risk hazard is tornado 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 Montgomery County risk compare to the Texas average?
Montgomery County's composite risk percentile is 96th, compared to the Texas state average of 49th percentile. The state's overall risk rating is Relatively Low. This means Montgomery County faces higher natural disaster risk than the typical county in Texas.
Is Montgomery County at risk for tornado?
Yes, Montgomery County's tornado risk is at the 99th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Montgomery County is at the 96th 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 Montgomery County higher risk than average?
Montgomery County's composite risk score of 96th percentile is above the Texas state average of 49th percentile. This elevated risk is driven by tornado exposure (99th percentile), along with flooding and hurricane 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.