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Texas · FEMA + NOAA + National Risk Index

Mason County, TX

4 FEMA disaster declarations (2021–2026), with a FEMA National Risk Index rating of Very Low. Most common hazard: Flood.

4
FEMA declarations
2
Major disasters
11
NRI risk · Very Low
Flood
Top hazard

The verdict

Mason County ranks safer than 11% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 57% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Very Low, based on 4 federal disaster declarations recorded since 2021, most often flood, 4% above the national county average of 4.

Safer than 11%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
4
FEMA declarations vs 4 national county avg
2
flood declarations, the most common hazard here

FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.

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How does Mason County compare?

Mason County vs. every U.S. county

FEMA disaster declarations, all-time

4 Top 43% higher than 57% of 2,791 counties

This county 0 30 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-07-25

Mason County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Texas county average

0/100100/100Texas avg49/10011/100
FEMA National Risk Index composite score vs. the Texas county average

How disaster-prone is Mason County?

Declaration frequency

Mason County, Texas has recorded 4 FEMA disaster declarations between 2021 and 2026, of which 2 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 0.8 declarations per year across a 5-year record, or roughly 17% above the Texas county average of 3.4 and 4% above the national county average of 3.8. The dominant disaster type on record is Flood, with 2 of 4 declarations falling under this category.

FEMA National Risk Index

FEMA's National Risk Index places this county in the low end of the national distribution, composite score 11.0/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $3.3M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Very High) and community resilience (Relatively Moderate). Among the 18 modeled hazards, Drought carries the county's highest rating, a mid-range Relatively Moderate.

Flood exposure & the bottom line

Taken together, Mason County reads as low relative risk on this historical lens, fewer federally recognized disasters than a typical U.S. county.

Risk Assessment

Risk Level

Low

vs. Texas Avg

+17%

State avg: 3.4

vs. National Avg

+4%

National avg: 3.8

Avg Per Year

0.8

Over 5 years

FEMA NRI 8-hazard radar - Mason County

Mason County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 8, Flood 0, Hurricane 8, Tornado 8, Wildfire 25, Drought 48, Heat Wave 8, Winter Storm 25. Overall composite 16 of 100, classified Low. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 16 composite
Mason County NRI risk profile FIPS 48319 · composite 16/100 (Low)
How to read this radar

The radar plots Mason County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.

FEMA Records

4

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

48319

TX state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Flood 2
Severe Ice Storm 2

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Emergency - 2 50.0%

of all 4 declarations

Major Disaster - 2 50.0%

of all 4 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2025 1
2021 2

Disaster Declarations

DR# Title Type Incident Date
3649 FLOODING EM Flood 2026-07-18
4879 SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2025-07-06
4586 SEVERE WINTER STORMS DR Severe Ice Storm 2021-02-19
3554 SEVERE WINTER STORM EM Severe Ice Storm 2021-02-14

Storm Events in Texas

Storm Type Events Fatalities Injuries Property Damage
Hail 16,276 0 20 $7.4B
Thunderstorm Wind 12,311 45 163 $406.4M
Drought 9,539 0 0 $86.0K
Flash Flood 5,531 484 24 $48.9B
Heat 4,874 174 463 $0

Source: NOAA Storm Events Database NOAA Storm Events Database State-level aggregated data, 2015–2025

FEMA National Risk Index

Overall Risk

Very Low

Score: 11.0/100

Expected Annual Loss

Very Low

$3.3M/year

Social Vulnerability

Very High

Community Resilience

Relatively Moderate

Hazard Risk Breakdown

Drought Relatively Moderate
Wildfire Relatively Low
Lightning Relatively Low
Hail Relatively Low
Hurricane Very Low
Winter Weather Relatively Low
Heat Wave Very Low
Tornado Very Low
Landslide Very Low
Strong Wind Very Low
Cold Wave Very Low
Earthquake Very Low
Ice Storm Very Low

Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

Counties with Similar Risk in Texas

Frequently Asked Questions

How many natural disasters has Mason County, Texas had?
Mason County, Texas has received 4 FEMA disaster declarations from 2021 to 2026. Of these, 2 were major disaster declarations.
What is the most common disaster type in Mason County?
The most common disaster type in Mason County is Flood, with 2 declarations. Other disaster types include Severe Ice Storm (2).
How does Mason County's disaster risk compare to the Texas average?
Mason County has 4 disaster declarations, which is 17% higher than the Texas county average of 3.4 declarations. Compared to the national county average of 3.8, it is 4% higher.
How many major FEMA disaster declarations has Mason County received?
Mason County has received 2 major disaster declarations, representing 50% of all 4 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in Texas?
The most common storm types in Texas include Hail (16,276 events), Thunderstorm Wind (12,311 events), Drought (9,539 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Mason County?
The most active year for disaster declarations in Mason County was 2021, with 2 declarations. The county has FEMA disaster data spanning 2021 to 2026.
What is the overall disaster risk level for Mason County?
Mason County's 4 FEMA disaster declarations put it in the low-risk band, fewer federally recognized disasters than a typical U.S. county over the same span.
What is the FEMA National Risk Index score for Mason County?
According to the FEMA National Risk Index, Mason County, Texas has an overall risk score of 11.0 out of 100 (Very Low). The county's social vulnerability rating is Very High and community resilience is Relatively Moderate. The Expected Annual Loss (EAL) score is Very Low, representing $3.3M in annualized losses.
Which natural hazard poses the greatest risk to Mason County?
Based on FEMA NRI data, the highest-risk natural hazard in Mason County is Drought (risk rating: Relatively Moderate). Other significant hazards include Wildfire (Relatively Low) and Lightning (Relatively Low). These scores are based on FEMA's analysis of historical event frequency, exposed assets, and community vulnerability.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015–2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

What this means for Mason County

Mason County, TX runs 17% above the Texas county average for federal disaster declarations (4 vs 3), a low historical load overall.

  • Its most common federal declaration type is emergency (2 of 4) - know the hazards most likely here before they happen. Texas overview
  • See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
  • Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide

Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, or report a data error.