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Galveston County, TX flood insurance claims history

60,620 National Flood Insurance Program claims have been filed for flood losses in Galveston County since 1978, and FEMA has paid out $2.47B on them. The worst year was 2008 with 22,606 claims. Galveston County ranks #2 of 217 in Texas by claim count.

At a glance

  • 31% of claims came from buildings outside FEMA’s high-risk flood zones (B, C or X), where lenders usually do not require flood insurance.
  • 37% of all claims trace to a single event — Hurricane Ike (2008), which paid $1.33B here.
  • Flood claims were filed in 10 of the last 10 years — flooding here is a regular event, not a once-in-a-generation one.
  • More flood claims than 100% of the 217 Texas counties with any claims on file — and more than 2 of its 3 neighbors.
  • ZIP 77539 has the most claims in the county (8,373, 14%). Check your ZIP →
NFIP claims
60,620
1978 – 2026
Total paid
$2.47B
nominal dollars, not inflation-adjusted
Claims paid
82%
49,437 received a payment
Average payout
$50K
per paid claim
Last 10 years
10,372
claims 2017 – 2026
Most recent loss
2026-08-03
data as of 2026-09-07

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Pick your ZIP code to see how many insured buildings there filed flood claims, in which years, and how much was paid. Narrow by year or flood zone too. Everything runs in your browser — nothing you pick is sent anywhere.

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Flood claims by year

Peak: 22,606 claims in 2008
 
 
'80
 
 
 
 
'85
 
 
 
 
'90
 
 
 
 
'95
 
 
 
 
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'05
 
 
 
 
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'15
 
 
 
 
'20
 
 
 
 
'25
 

Claims by year of loss, 1978–2026. Spikes line up with named storms and major rain events; quiet years still see claims from local flash flooding.

Biggest flood events in Galveston County

Flood event (FEMA name)ClaimsPaidAvg / claimYear
Hurricane Ike22,382$1.33B$59K2008
Hurricane Harvey8,712$830.8M$95K2017
Hurricane Alicia7,250$46.1M$6K1983
Tropical Storm Claudette3,362$66.0M$20K1979
Flooding (FEMA general label)2,482$18.9M$8K1998
Flooding (FEMA general label)2,311$9.3M$4K1981
Hurricane Chantel1,991$24.6M$12K1989
Flooding (FEMA general label)1,930$14.0M$7K1979
Tropical Storm Allison1,756$43.8M$25K2001
Hurricane Claudette669$4.7M$7K2003
Hurricane Beryl608$9.2M$15K2024
Hurricane Rita344$1.9M$5K2005

89% of claims here fall under these 12 entries. “FEMA general label” groups many separate floods under one name; the rest of the claims have no event name.

Claims by flood zone

Not sure what the zone letters mean? Flood zones explained →

High-risk A zones: 34,765 (57%)Coastal high-risk V zones: 7,200 (12%)Moderate / low-risk zones (B, C, X): 18,554 (31%)Zone not recorded: 101 (0%)
Flood zone at ratingClaimsPaidAvg / claim
High-risk A zones (A, AE, AH, AO, A1–A30, AR)34,765$1.59B$46K
Coastal high-risk V zones (V, VE, V1–V30)7,200$218.9M$30K
Moderate / low-risk zones (B, C, X)18,554$659.4M$36K
Zone not recorded101$1.4M$14K

What caused the flooding

Cause of damage (as coded by FEMA)ClaimsShare
Accumulation of rainfall or snowmelt33,27455%
Tidal water overflow (storm surge)18,73931%
Stream, river or lake overflow3,9957%
Other causes3,7026%
Not recorded7491%
Alluvial fan overflow1200%

Flood claims by ZIP code in Galveston County

126 ZIP codes in Galveston County have at least one NFIP claim. ZIP codes can cross county lines; this table counts only claims FEMA assigned to Galveston County.

775398,373$455.8M14%482026
775508,116$319.4M13%422025
775546,962$144.1M11%362026
775516,502$358.3M11%432025
775734,378$198.2M7%472026
775464,160$259.3M7%452026
775634,023$92.8M7%412024
776503,436$295.6M6%332026
775653,099$87.4M5%432024
775902,632$16.8M4%462024
1,693$10.7M3%122008
775681,683$33.2M3%442025
775101,551$56.2M3%322025
775181,108$28.1M2%372026
775911,010$23.4M2%362025
77617741$50.4M1%202024
77517422$19.6M1%202024
77511166$5.1M0%152024
77553112$1.9M0%92008
7755259$634K0%112021
7759249$345K0%112017
7754949$1.2M0%61992
7757438$247K0%82008
7750033$279K0%72008
7762319$1.2M0%42008
7755519$3.2M0%42020
7756015$1.1M0%42008
770009$59K0%42008
775868$206K0%31983
775646$57K0%42008
777005$119K0%32008
773395$258K0%52008
772004$156K0%32008
776514$142K0%22008
775444$89K0%22008
770244$10K0%21998
770193$8K0%22008
776563$151K0%22008
770553$00%21989
770713$48K0%32003
750433$38K0%21998
770463$49K0%32008
775053$127K0%32008
770103$9240%32003
776003$127K0%32008
770503$221K0%32008
770633$367K0%32008
775872$22K0%22008
774112$64K0%12008
755172$30K0%21980
770352$1K0%11983
770742$7K0%21998
761112$63K0%22008
776572$57K0%12008
775302$5K0%21989
777042$7K0%21989
770362$00%12008
773502$48K0%22017
775941$20K0%12008
776581$309K0%12008
770771$5720%11983
776621$96K0%12008
770071$38K0%12008
770011$00%11993
776591$137K0%12008
753631$17K0%11979
775031$18K0%11998
766241$00%11983
770571$00%11983
755091$4K0%12008
752651$14K0%12008
775411$21K0%11979
770271$6K0%12008
778361$2270%11983
777061$189K0%12008
757641$4500%11998
770521$00%11983
770921$00%11983
787591$25K0%12008
777511$3170%11998
769021$9K0%12008
776651$9K0%11998
770791$1K0%11983
776401$2K0%11983
775381$27K0%11979
775561$2K0%12008
770251$3K0%11998
776181$00%11983
776291$69K0%12008
775841$148K0%12008
779621$10K0%11983
775781$00%12008
761311$4240%11998
770531$257K0%12008
774691$18K0%12008
770051$2K0%11983
750421$12K0%11998
967991$3K0%11983
775671$3K0%11983
775751$00%12008
766321$00%12008
772271$00%12008
770301$25K0%12008
789561$4K0%12003
775321$00%11998
776321$346K0%12008
770761$1K0%11998
775121$00%12001
775881$59K0%12008
775701$00%11979
776601$53K0%12008
776521$00%12003
775331$1K0%11983
772561$1K0%12008
774001$00%11989
775021$5K0%11983
779821$00%11989
773721$00%12008
770511$1K0%11983
777541$00%11998
776051$136K0%12008
773911$222K0%12008
770181$2K0%11983
781551$5K0%11995
776191$68K0%12008
778501$108K0%12008

Click a column to sort. Click a ZIP to load it in the lookup above.

When does Galveston County flood?

September accounts for the most flood losses (28,483 claims, 47%). Claims by month of loss:

MonthClaimsShare
January2300%
February1290%
March1390%
April7151%
May4931%
June3,3436%
July4,9818%
August20,02633%
September28,48347%
October1,3622%
November2770%
December4421%

Year-by-year detail

Year of lossClaimsPaid
20268$13K
20259$34K
2024789$13.4M
202315$268K
202220$588K
2021223$3.1M
2020171$2.3M
2019121$1.3M
2018163$3.4M
20178,853$835.3M
2016104$1.2M
2015177$1.9M
201428$577K
201331$489K
201247$301K
201141$164K
201055$263K
2009440$9.5M
200822,606$1.34B
200779$955K
2006205$2.2M
2005375$1.9M
200457$293K
2003715$4.9M
2002465$2.9M
20011,914$44.5M
200045$177K
199931$36K
19982,720$20.5M
1997189$828K
1996116$538K
1995385$2.2M
1994179$5.8M
199351$268K
199272$235K
1991156$652K
199029$83K
19892,801$30.0M
198895$106K
198721$54K
198693$221K
198547$57K
1984241$1.0M
19837,483$46.7M
198250$144K
19812,382$9.5M
1980255$995K
19795,461$80.7M
19787$18K

Neighboring counties

Galveston County borders 3 areas we cover. Flood risk does not stop at a county line, so it is worth comparing.

NeighborClaimsPaidOutside high-risk
Galveston County (this page)60,620$2.47B31%
Harris County170,854$8.76B55%
Brazoria County21,436$631.8M46%
Chambers County2,096$129.5M78%

All 217 Texas counties → · County and ZIP rankings →

Common questions about flooding in Galveston County

Has Galveston County flooded recently?
Yes — the most recent flood loss with an insurance claim on file was on 2026-08-03, and claims were filed in 10 of the last 10 years (10,372 claims from 2017 to 2026). FEMA’s data runs to 2026-09-07, so the newest events may not appear yet.
Do I need flood insurance in a low-risk zone here?
Lenders generally require it only in high-risk A and V zones. But 31% of Galveston County’s claims came from moderate- and low-risk zones. Whether to buy coverage is your call — see flood zones explained and check your address on the FEMA Flood Map Service Center.
Can I see whether a specific house has flooded?
Not here. FEMA removes addresses before publishing, so these figures describe areas, never a property. Our guide how to check if a house has flooded lists the questions and records that can tell you about a specific home.
Why might the real number of floods be higher?
Only buildings with National Flood Insurance can file these claims, and most homes are not insured for flood. More on what the counts mean in understanding NFIP claims data.

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About these numbers

Figures are aggregated from FEMA’s OpenFEMA NFIP Redacted Claims dataset (county FIPS 48167, data as of 2026-09-07). They cover only properties that carried National Flood Insurance — most homes do not, and private flood policies are not included — so real flood damage is larger than these counts show. Dollar amounts are as paid, in nominal dollars. Flood zone is the zone used to rate the policy at the time, which may differ from today’s map. FEMA states this dataset is not an official federal report. Use it for background, not for a purchase, insurance or legal decision; for a specific property ask the seller for its flood disclosure or the owner’s NFIP loss history.