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Texas · FEMA + NOAA + National Risk Index

Harris County, TX

41 FEMA disaster declarations (1973-2024), with a FEMA National Risk Index rating of Very High. Most common hazard: Hurricane.

41
FEMA declarations
30
Major disasters
100
NRI risk · Very High
Hurricane
Top hazard

The verdict

Two federal records point in the busier direction for Harris County. Its 41 FEMA declarations are 96% above the Texas county mean and exceed the count for 97% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 1%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 1%
of U.S. counties for FEMA National Risk Index score
Very High
FEMA National Risk Index rating
41
FEMA declarations vs 21 national county avg
170,838
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Fire Management Assistance (FM) records, which are not presidential disaster declarations, alongside Major Disaster (DR) and Emergency (EM) records.

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FEMA OpenFEMA declaration desk

County FIPS 48201 · Harris County 41 declarations · rank 91/3,266

DECL-HEAVY · MAJOR-MID · RANK-UPPER · PHOTO-FINISH · NRI-HIGH · ACT-HIGH · TYPE-LEAD · VS-ST-HIGH

  • DECL-HEAVY 41
  • MAJOR-MID 73%
  • RANK-UPPER #91
  • PHOTO-FINISH Okaloosa
  • NRI-HIGH Very High
  • ACT-HIGH High
  • TYPE-LEAD Hurricane
  • VS-ST-HIGH +96%

Nearest declaration peer: Okaloosa, FL (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Texas state profile

Harris County among high-volume declaration counties

FEMA declaration records among Harris County and nearest peers by total count

declarations

What this shows Harris County carries 41 FEMA declaration records, ranked 91 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

Where Harris County ranks in the national declaration registry

Harris County vs. high-volume counties in this registry

FEMA disaster declarations, all-time · Harris County

41 Top 3% higher than 97% of 3,266 counties

This county 0 90 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 · 2026-08-25

Harris County's FEMA Risk Index score

0/100100/100Texas avg49/10099.9/100
FEMA National Risk Index composite score vs. the Texas county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Harris County is led by Riverine Flooding (about $1.1B Expected Annual Loss, Historical Loss Ratio Relatively Low), while Hurricane carries the highest National Risk Index rating (Very High). EAL and risk score use different inputs; they need not agree.

Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.

What does Harris County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 170,838 claims and $8.8B in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $51.3K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

The declaration register points in the busier direction. Harris County's 41 federal records stand 96% above the Texas county mean of 20.9. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 99.9/100 (Very High). Expected Annual Loss is rated Very High (roughly $2.2B in annualized losses). Social vulnerability reads Relatively High and community resilience Very Low, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Hurricane stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at roughly once every 5 years here, based on 75 historical events on record.

93 /100

Historical Activity Index

Very High historical activity

Harris County, TX · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) Very High
30/30

41 OpenFEMA declarations, full ingest window (2.0x national county average)

County Disaster Density Very High
25/25

41 declarations (2.0x state county average of 21)

Major Disaster Share High
18/25

30 of 41 declarations are major disasters (73%)

Hazard Diversity Very High
20/20

8 different disaster types declared in Harris County

FEMA NRI 8-hazard radar - Harris County

Harris County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 48, Flood 92, Hurricane 92, Tornado 92, Wildfire 25, Drought 48, Heat Wave 92, Winter Storm 92. The simple mean of these eight displayed scores is 73 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 73 8-hazard mean
Harris County NRI risk profile FIPS 48201 · displayed-hazard mean 73/100
How to read this radar

Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.

FEMA Records

41

Very high volume

Major Disaster share

73%

Major-heavy

NRI risk score

100

Very High

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Harris County?

FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Hurricane Very High roughly once every 5 years
Tornado Very High an average of 1.6 times per year
Riverine Flooding Very High an average of 5.1 times per year
Cold Wave Very High roughly once every 2 years
Lightning Very High an average of 75 times per year
Heat Wave Very High 15 modeled event-days per year
Ice Storm Very High roughly once every 1 years
Strong Wind Very High an average of 1.5 times per year
Earthquake Relatively Moderate roughly once every 1,887 years
Hail Relatively Moderate an average of 2.4 times per year
Winter Weather Relatively High an average of 1.1 times per year
Landslide Relatively Moderate roughly once every 4 years
Wildfire Relatively Low roughly once every 895 years
Coastal Flooding Relatively High an average of 3.8 times per year
Drought Relatively Moderate 16 modeled event-days per year

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Hurricane 12
Flood 12
Severe Storm 8
Fire 3
Severe Ice Storm 2
Biological 2
Coastal Storm 1
Tornado 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Harris County's federal record, 29% of its declarations. Atlantic tropical systems run on a defined season, 1 June to 30 November, with most activity concentrated between August and October; Pacific and territorial basins run on their own calendars. A single named storm routinely produces one declaration number covering a long corridor of counties at once, well inland as well as on the coast, which is why an affected county's count can jump by several in one year without several separate events having occurred.

One practical distinction matters when reading these records: a tropical declaration usually bundles wind, storm surge and inland rainfall flooding under a single incident, but the insurance behind them is split. Wind damage falls to property insurers, while flood and surge damage is covered only under a separate National Flood Insurance Program policy. That is why a county can show heavy declaration activity and a comparatively small NFIP claims record, or the reverse.

Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.

Declaration Types

What DR / EM / FM mean

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

Major Disaster - 30 73.2%

of all 41 declarations

Emergency - 10 24.4%

of all 41 declarations

Fire Management - 1 2.4%

of all 41 declarations

FEMA Declarations Timeline

Year Declarations
2024 2
2021 2
2020 5
2017 1
2016 3
2015 1
2011 1
2008 4
2007 1
2006 1
2005 3
2003 1
2001 1
1999 2
1998 2
Show 9 earlier declaration years
1995 1
1993 1
1992 1
1989 2
1985 1
1983 1
1979 2
1976 1
1973 1

Disaster Declarations

How the 41 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 41 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4798 HURRICANE BERYL DR Hurricane 2024-07-09
4781 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Flood 2024-05-17
4586 SEVERE WINTER STORMS DR Severe Ice Storm 2021-02-19
3554 SEVERE WINTER STORM EM Severe Ice Storm 2021-02-14
3540 TROPICAL STORMS MARCO AND LAURA EM Hurricane 2020-08-24
3530 HURRICANE HANNA EM Hurricane 2020-07-26
4485 COVID-19 PANDEMIC DR Biological 2020-03-25
3458 COVID-19 EM Biological 2020-03-13
4466 TROPICAL STORM IMELDA DR Flood 2019-10-04
4332 HURRICANE HARVEY DR Hurricane 2017-08-25
4272 SEVERE STORMS AND FLOODING DR Flood 2016-06-11
4269 SEVERE STORMS AND FLOODING DR Flood 2016-04-25
4245 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-11-25
4223 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING DR Severe Storm 2015-05-29
2924 FOREST BROOK FIRE FM Fire 2011-06-17
1791 HURRICANE IKE DR Hurricane 2008-09-13
3294 HURRICANE IKE EM Hurricane 2008-09-10
3290 HURRICANE GUSTAV EM Hurricane 2008-08-29
1730 TROPICAL STORM ERIN DR Severe Storm 2007-10-02
3277 HURRICANE DEAN EM Hurricane 2007-08-18
Show 21 earlier declaration records
DR# Title Type Incident Date
1624 EXTREME WILDFIRE THREAT DR Fire 2006-01-11
1606 HURRICANE RITA DR Hurricane 2005-09-24
3261 HURRICANE RITA EM Hurricane 2005-09-21
3216 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-02
1439 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2002-11-05
1379 TX-TROPICAL STORM ALLISON-06-06-2001 DR Coastal Storm 2001-06-09
3142 EXTREME FIRE HAZARDS EM Fire 1999-09-01
1257 TX-FLOODING 10/18/98 DR Flood 1998-10-21
1245 HURRICANE GEORGES - TEXAS DR Severe Storm 1998-09-23
1239 TROPICAL STORM CHARLEY DR Severe Storm 1998-08-26
1041 SEVERE THUNDERSTORMS AND FLOODING DR Flood 1994-10-18
970 SEVERE THUNDERSTORMS & TORNADOES DR Tornado 1992-12-04
937 SEVERE STORMS & FLOODING DR Flood 1992-03-20
836 TROPICAL STORM ALLISON DR Flood 1989-07-18
828 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1989-05-19
727 SEVERE STORMS & FLOODING DR Flood 1984-10-30
689 HURRICANE ALICIA DR Hurricane 1983-08-19
603 SEVERE STORMS & FLOODING DR Flood 1979-09-25
580 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1979-04-26
510 SEVERE STORMS & FLOODING DR Flood 1976-06-19
398 SEVERE STORMS & FLOODING DR Flood 1973-07-11

Storm Events in Texas

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Harris County.

Storm Type Events Fatalities Injuries Property Damage
Hail 14,072 0 15 $7.4B
Thunderstorm Wind 10,293 41 141 $369.9M
Drought 7,032 0 0 $86.0K
Flash Flood 4,728 338 24 $47.6B
Heat 4,079 119 405 $0

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

NFIP Flood Insurance Claims

Total Claims

170,838

Total Paid

$8.8B

Avg Per Claim

$51.3K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Very High

Score: 99.9/100

Expected Annual Loss

Very High

$2.2B/year

Social Vulnerability

Relatively High

Community Resilience

Very Low

Hazard Risk Breakdown

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

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

The model's sharpest exposure here: Hurricane

Hurricane exposure in the model bundles the three ways a tropical system does harm, which arrive on different timescales and are insured differently: wind, storm surge on the coast, and rainfall flooding that can reach far inland well after landfall.

For Harris County the two measures on this page point the same way: Hurricane is the county's highest-rated modeled hazard (Very High), and Hurricane declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.

National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.

Data-matched county comparisons

Harris County's closest FEMA peer: York County, ME

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Harris County. Record similarity, not a safety rating.

How these peers are chosen

Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.

Retained FEMA snapshot feed for Harris County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Harris County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.

Further reading for this county

Understanding disaster data

Harris County's NFIP claims file (170,838 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Harris County?
The most common disaster type in Harris County is Hurricane, with 12 declarations. Other disaster types include Flood (12), Severe Storm (8), Fire (3).
How does Harris County's FEMA declaration record compare with the Texas average?
FEMA lists 41 declaration records for Harris County. That is 96% above the Texas county mean of 20.9. Its count is also 98% above the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Harris County received?
Harris County has received 30 major disaster declarations, representing 73% of all 41 disaster declarations.
How many flood insurance claims has Harris County filed?
Harris County has 170,838 National Flood Insurance Program (NFIP) claims totaling $8.8B in payments, with an average of $51.3K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Harris County?
No. In Harris County, Hurricane has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $1.1B. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Harris County?
The most active year for disaster declarations in Harris County was 2020, with 5 declarations. The county has FEMA disaster data spanning 1973 to 2024.
What is the FEMA National Risk Index score for Harris County?
According to the FEMA National Risk Index, Harris County, Texas has an overall risk score of 99.9 out of 100 (Very High). Social vulnerability here rates Relatively High, while community resilience comes in at Very Low. The Expected Annual Loss (EAL) score is Very High, representing $2.2B in annualized losses.
Which natural hazard poses the greatest risk to Harris County?
The top hazard flagged by FEMA's NRI for Harris County is Hurricane (risk rating: Very High). Other significant hazards include Tornado (Very High) and Riverine Flooding (Very High). FEMA's modeled event frequency puts hurricane here at roughly once every 5 years, drawn from 75 historical events on record. 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.

Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.

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.

FEMA OpenFEMA declarations + NRI for Harris County · vintage 2026-08-25 · Methodology · Texas profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events