FEMA flood zones · Texas

Henderson County, Texas Flood Zone Map

90 flood insurance claims·$3.4M paid·5 federal flood & hurricane disasters

23% of Henderson County’s area is in FEMA’s high-risk flood zones.

Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.

Coastal high risk (V, VE)FloodwayHigh risk (A, AE)Moderate (X, 500-year)Minimal (X)Undetermined (D)

Shaded areas are FEMA’s mapped flood hazard zones in and around Henderson County, Texas. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.

How Henderson County floods

Flash flooding from severe thunderstorms dominates the flood hazard profile in Henderson County, TX, supported by 48 flash flood events, 10 general flood events resulting in 1 death, and 1 tropical storm recorded over the last 30 years in the NOAA Storm Events Database. Severe weather patterns have driven notable regional flooding, including events generated by an upper-level low pressure system and cold front in May 2022, as well as storms associated with a cold front and dryline in June 2025.

Federal Emergency Management Agency (NFIP) claim data demonstrates that flood risk extends across multiple zones. Properties in Zone X account for 71 claims with an average payout of $55,181 and an average recorded water depth of 9 inches. Zone A accounts for 17 claims with an average payout of $65,017 and an average recorded water depth of 16 inches, while Zone UNKNOWN accounts for 2 claims with an average payout of $6,584 and an average recorded water depth of 1 inch. Homeowners, real estate agents, and journalists should pay the closest attention to properties located in mapped flood hazard areas like Zone A, as well as properties in Zone X where accumulated claims indicate substantial historical flood risk during severe storm events.

Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.

How deep the water got

outlet80″ door12″24″36″48″60″72″84″

In flood insurance claims here that reported a flood depth, the average was 10 inches.

Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.

Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.

Flood claims, year by year

The worst year was 2015, with 20 claims and $746,175 paid, the year of Severe Storms, Tornadoes, Straight-line Winds and Flooding and Severe Winter Storms, Tornadoes, Straight-line Winds, and Flooding.

1980: 2 claims1991: 3 claims1995: 1 claims1998: 1 claims1999: 1 claims2000: 1 claims2001: 2 claims2002: 1 claims2004: 1 claims2005: 1 claims2006: 1 claims2007: 6 claims2008: 2 claims2009: 1 claims2010: 4 claims2012: 7 claims2013: 1 claims2014: 1 claims2015: 20 claims2016: 7 claims2017: 3 claims2018: 2 claims2019: 2 claims2020: 2 claims2021: 2 claims2022: 2 claims2024: 4 claims2025: 3 claims2026: 6 claims19801990200020102020

Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.

In their words

16 NOAA storm reports from Henderson County describe what happened, in the words of the forecasters who covered it. Read the Texas flood stories →

Federal disasters

25 federal disaster declarations since 1966, 5 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Straight-line Winds, Tornadoes, And FloodingApr 26, 2024
Severe Winter StormJan 30, 2023
Severe Winter StormFeb 11, 2021
Severe Winter StormsFeb 11, 2021
Severe Storms, Tornadoes, And FloodingMar 7, 2016
Severe Winter Storms, Tornadoes, Straight-line Winds, And FloodingDec 26, 2015
Severe Storms, Tornadoes, Straight-line Winds And FloodingMay 4, 2015
WildfiresAug 30, 2011

Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.

Recorded flood events

59 since 1996: 48 flash floods and 10 river or area floods.

EventDateDamage
Flash FloodMay 6, 2025—
FloodMar 4, 2025—
Flash FloodJun 4, 2025$150,000
FloodMay 5, 2022—
FloodJul 7, 2020$100,000
Flash FloodApr 24, 2019—
FloodMar 9, 2016—
Flash FloodMar 9, 2016$3,000

— = no damage estimate in the record. Source: NOAA Storm Events Database.

From the storm reports

Flash Flood · May 6, 2025. A sharp upper trough and a meandering surface front generated two rounds of thunderstorms across the region, one round on May 5 and the other on May 6. Most of the severe weather took place on the 6th, when large hail, damaging winds, and a few tornadoes occurred. A total of 5 tornadoes were surveyed in the far southeast parts of the County Warning Area: two EF-0s and three EF-1s. The strongest tornado had winds u…

Flood · Mar 4, 2025. A deep upper trough moving east through the Plains was accompanied by a Pacific cold front, along which a line of strong to severe thunderstorms developed early in the morning of March 4. This line of storms produced damaging winds in the 80-100 mph at times, a few hail reports, and two tornadoes as it pushed east through North and Central Texas the morning of March 4. The damaging thunderstorm winds left notable…

Flash Flood · Jun 4, 2025. On June 3 and 4, a cold front and a dryline served as focal points for thunderstorm development across North and Central Texas. These storms were associated with several instances of severe weather and flooding. Unfortunately Unfortunately one person died due to flooding in Dallas County, and a lightning strike killed one person and severely injured another person in Grayson County.

Flood · May 5, 2022. An upper level low pressure system and a cold front worked together to generate a round of strong to severe thunderstorms during the day of Thursday May 5. Activity was focused primarily along and ahead of the cold front, and most of the strong to severe storms occurred across our Central and East Texas counties.

National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.

The zones you’ll see on the map

Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.

Cross-section of a river floodplainDiagram: a river valley. The floodway is the channel and the land beside it; the 1%-annual-chance flood surface (the base flood elevation) covers the valley floor as zone A or AE; a narrow band higher up is shaded X, the 0.2% floodplain; higher ground is X.0.2% CHANCE A YEAR (500-YEAR)BASE FLOOD ELEVATION · 1% A YEARXAEFloodwayAEX
  1. A / AE Inside the 1%-a-year floodplain: about a 26% chance of flooding over a 30-year mortgage. AE has a mapped base flood elevation; plain A does not.
  2. Floodway The channel and the land beside it that has to be kept clear enough to carry the flood. Building here is tightly limited.
  3. X shaded The 0.2% (500-year) floodplain, plus some levee-protected and very shallow flood areas.
  4. X Outside both lines. No federal requirement to insure, which is not the same as no risk.

Every flood zone code explained →

Flood insurance in Henderson County

If a building in Henderson County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.

Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.