FEMA flood zones · Texas

Sutton County, Texas Flood Zone Map

30 flood insurance claims·$894,365 paid·3 federal flood & hurricane disasters

Less than 1% of Sutton 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 Sutton 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 Sutton County floods

Flash flooding driven by heavy rainfall dominates the flood risk profile in Sutton County, accounting for 41 out of 45 total recorded flood events over the last 30 years, alongside 3 standard flood events and 1 tropical depression. Recent history underscores this pattern, including heavy rainfall and flash flooding produced by deep tropical moisture and a weak upper-level area of low pressure in July 2025.

National Flood Insurance Program records indicate that flood impacts extend across multiple zones with distinct severity profiles. Properties located in Zone A account for 24 claims with an average payout of $31,635 and an average recorded water depth of 9 inches. Meanwhile, properties in Zone X account for 6 claims with an average payout of $48,885 and an average recorded water depth of 1 inch.

Homeowners, real estate agents, and journalists should pay the most attention to properties situated within designated Special Flood Hazard Areas like Zone A, where average recorded water depths reach 9 inches, as well as lower-lying areas vulnerable to sudden, heavy tropical moisture and thunderstorm downpours.

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

Where the flood claims came from

Less than 1% of Sutton County’s flood insurance claims were on properties rated outside FEMA’s high-risk zones.

24 NFIP claims with a recorded rated flood zone, 1978 to date. The zone is the one FEMA used to rate that policy, which may not match today’s map. Source: OpenFEMA NFIP claims.

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 8 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 2018, with 21 claims and $874,207 paid, the year of Severe Storms and Flooding.

1990: 6 claims2002: 1 claims2018: 21 claims2025: 1 claims2026: 1 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

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

Federal disasters

16 federal disaster declarations since 1993, 3 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Straight-line Winds, And FloodingJul 2, 2025
Severe Winter StormFeb 11, 2021
Severe Winter StormsFeb 11, 2021
Severe Storms And FloodingSep 10, 2018
WildfiresAug 30, 2011
WildfiresApr 6, 2011
WildfiresMar 14, 2008
Extreme Wildfire ThreatNov 27, 2005

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

Recorded flood events

45 since 1996: 41 flash floods and 3 river or area floods.

EventDateDamage
Flash FloodJul 13, 2025—
Flash FloodSep 7, 2025—
FloodOct 25, 2023—
Flash FloodMay 2, 2019—
Flash FloodSep 21, 2018—
Flash FloodSep 21, 2018$8.0M
FloodOct 16, 2018—
FloodJun 27, 2016—

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

From the storm reports

Flash Flood · Jul 13, 2025. The combination of deep tropical moisture and a weak upper level area of low pressure produced heavy rainfall and flash flooding across portions of the Northwest Hill Country and Heartland.

Flash Flood · Sep 7, 2025. Heavy rainfall causing Flash Flooding across portions of Sutton County.

Flood · Oct 25, 2023. The combination of abundant moisture and strong thunderstorms produced some flash flooding across portions of Kimble County.

Flash Flood · May 2, 2019. On May 1, a very unstable airmass, dryline and a residual outflow boundary combined across the Big Country or the region north of Interstate 20 to trigger a few supercell thunderstorms. These ingredients resulted in two tornado reports and a few hail reports. By May 3, an upper level disturbance moved into West Central Texas and caused more severe storms to develop. These storms produced large hail on May 3. T…

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 Sutton County

If a building in Sutton 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.