FEMA flood zones · Alabama

Cullman County, Alabama Flood Zone Map

30 flood insurance claims·$563,596 paid·6 federal flood & hurricane disasters

6% of Cullman 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 Cullman County, Alabama. 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 Cullman County floods

Flash flooding from heavy rainfall dominates the flood risk profile in Cullman County, accounting for 80 of the 96 recorded flood events over the last 30 years, alongside 13 general floods, 2 tropical storms, and 1 tropical depression. Recent weather history underscores this hazard, including a February 2025 event involving two rounds of heavy rainfall that produced widespread river and flash flooding across northern Alabama, and a June 2025 thunderstorm band that brought heavy rainfall and reported flash flooding directly to Cullman County.

National Flood Insurance Program records indicate that property damage occurs across multiple zones, with the highest claim volume concentrated in high-risk areas. Specifically, Zone A recorded 18 claims with an average payout of $23,203 and an average recorded water depth of 12 inches. Meanwhile, moderate-to-low risk areas also experienced impacts, including 9 claims in Zone X with an average payout of $32,452 and an average recorded water depth of 2 inches, and 2 claims in unshaded Zone X with an average payout of $5,794 and an average recorded water depth of 9 inches. Zone V recorded a single claim with no payout or water depth recorded.

Homeowners and real estate agents with properties located in designated Zone A, as well as those in Zone X outside of mapped high-risk areas, should pay the closest attention to flood risk given the documented history of property damage and average water depths from past events.

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

Where the flood claims came from

10% of Cullman County’s flood insurance claims were on properties rated outside FEMA’s high-risk zones.

21 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 9 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 8 claims and $216,988 paid, the year of Severe Storms, Tornadoes, Straight-line Winds, and Flooding.

1979: 3 claims1990: 1 claims1996: 1 claims2002: 1 claims2004: 2 claims2009: 3 claims2011: 2 claims2015: 8 claims2020: 1 claims2021: 7 claims2023: 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

37 NOAA storm reports from Cullman County describe what happened, in the words of the forecasters who covered it. Read the Alabama flood stories →

Federal disasters

32 federal disaster declarations since 1973, 6 of them floods, coastal storms or hurricanes.

DisasterBegan
Hurricane HeleneSep 22, 2024
Hurricane SallySep 14, 2020
Severe ThunderstormsApr 12, 2020
Severe Storms And FloodingFeb 5, 2020
Severe Storms And TornadoesMar 19, 2018
Hurricane IrmaSep 8, 2017
Severe Storms, Tornadoes, Straight-line Winds, And FloodingDec 23, 2015
Severe Storms, Tornadoes, And Straight-line WindsApr 27, 2011

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

Recorded flood events

96 since 1996: 80 flash floods and 13 river or area floods.

EventDateDamage
Flash FloodJun 29, 2025—
Flash FloodFeb 12, 2025—
Flash FloodSep 13, 2024—
FloodFeb 16, 2023—
Flash FloodAug 7, 2022—
Flash FloodSep 4, 2022—
Flash FloodMar 25, 2021—
FloodMar 18, 2021—

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

From the storm reports

Flash Flood · Jun 29, 2025. Several clusters and small bands of thunderstorms developed during the late morning and lasted into the afternoon hours as they travelled south and southeast. On of the thunderstorms produced a lightning strike which resulted in an injury in Russellville. One of the thunderstorms knocked down a tree.||Flash flooding was also reported in Cullman County as a result of the heavy rainfall.

Flash Flood · Feb 12, 2025. Two rounds of heavy rainfall affected Northern Alabama and Southern Middle Tennessee, with the first round producing widespread river flooding across the area. In addition, flash flooding occurred in several locations with the first event, and again with the second event just 48-72 hours later. While most river gage locations fell back below flood stage by the end of the week, the Tennessee River at Florence linge…

Flash Flood · Sep 13, 2024. As the remains of Tropical System Francine slowly meandered through the mid South, a persistent band of showers and thunderstorms produced very heavy rainfall totals over the two day period from the 13th into the 14th. Some of the heaviest rains occurred during the evening of the 13th into the morning hours of the 14th in parts of northwest and north central Alabama. Widespread rain totals of 2 to 4 inches were o…

Flood · Feb 16, 2023. Rainfall amounts of 2.5-4 fell over the course of a few hours on the evening of February 16th. Widespread flooding occurred across portions of Cullman, Marshall, and into portions of Jackson and Dekalb Counties. Parts of I-65 were shut down, and several water rescues occurred in Cullman County that evening thanks to thunderstorms repeatedly moving across these areas in a very warm and moist airmass for mid-February.

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 Cullman County

If a building in Cullman 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.