FEMA flood zones · Florida

Jefferson County, Florida Flood Zone Map

18 flood insurance claims·$87,982 paid·16 federal flood & hurricane disasters

48% of Jefferson County’s area is in FEMA’s high-risk flood zones, and another 1% in shaded X (mostly the 0.2% floodplain and areas behind levees).

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 Jefferson County, Florida. 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 Jefferson County floods

Jefferson County experiences a flood risk profile dominated by tropical storms and flash flooding. Over the last 30 years, the NOAA Storm Events Database recorded 30 tropical storm events resulting in one death, 14 flash flood events, nine hurricanes, three storm surge or tide events, and three general flood events.

Recent historical events illustrate this hazard pattern. On March 9, 2025, a slow-moving frontal boundary produced multiple rounds of showers, thunderstorms, and isolated flash flooding. A major flash flood event occurred between April 10 and April 11, 2024, when 6 to 10 inches of rain—with localized higher amounts—fell across the region, causing rapid water rises, flooded structures and vehicles, and millions of dollars in damage.

National Flood Insurance Program records reflect claims distribution across hazard zones. Properties located in Zone A show 15 recorded claims with an average payout of $7,629 and an average recorded water depth of 1 inch. Zone X accounts for two claims with an average payout of $0 and an average recorded water depth of 0 inches, while Zone UNKNOWN registers one claim with an average payout of $11,696 and an average recorded water depth of 1 inch. Consequently, property owners in Zone A and unmapped or unknown zones should pay the closest attention to flood risk and mitigation.

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 1 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 1995, with 2 claims and $23,106 paid, the year of Hurricane Erin.

1984: 1 claims1985: 2 claims1989: 1 claims1991: 1 claims1993: 1 claims1994: 1 claims1995: 2 claims1998: 1 claims2004: 2 claims2008: 2 claims2010: 2 claims2016: 1 claims2022: 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

44 NOAA storm reports from Jefferson County describe what happened, in the words of the forecasters who covered it. Read the Florida flood stories →

Federal disasters

39 federal disaster declarations since 1973, 16 of them floods, coastal storms or hurricanes.

DisasterBegan
Hurricane HeleneSep 23, 2024
Tropical Storm HeleneSep 23, 2024
Hurricane DebbyAug 1, 2024
Tropical Storm DebbyAug 1, 2024
Severe Storms, Straight-line Winds, And TornadoesMay 10, 2024
Hurricane IdaliaAug 27, 2023
Tropical Storm IdaliaAug 27, 2023
Hurricane NicoleNov 7, 2022

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

Recorded flood events

59 since 1996: 14 flash floods, 3 river or area floods and 3 coastal floods or surges.

EventDateDamage
Flash FloodMar 9, 2025—
Hurricane (Typhoon)Sep 26, 2024—
Hurricane (Typhoon)Sep 26, 2024$10.0M
Storm Surge/TideSep 26, 2024—
Flash FloodApr 11, 2024—
Tropical StormOct 9, 2024—
Tropical StormAug 5, 2024—
Storm Surge/TideAug 30, 2023—

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

From the storm reports

Flash Flood · Mar 9, 2025. A slow moving frontal boundary brought multiple rounds of showers and thunderstorms to the area. Isolated flash flooding occurred along with hail and isolated wind damage.

Hurricane (Typhoon) · Sep 26, 2024. Hurricane Helene made landfall as a Category 4 hurricane with maximum sustained winds of 140 mph and a minimum central pressure of 938 mb (27.70 inches) at about 11:10 PM EDT on Thursday, September 26th, in Taylor County Florida just east of the Aucilla River. Helene quickly moved inland across Taylor and Madison Counties before moving into Lowndes County in South Central Georgia. The hurricane produced a devastat…

Storm Surge/Tide · Sep 26, 2024. Hurricane Helene made landfall as a Category 4 hurricane with maximum sustained winds of 140 mph and a minimum central pressure of 938 mb (27.70 inches) at about 11:10 PM EDT on Thursday, September 26th, in Taylor County Florida just east of the Aucilla River. Helene quickly moved inland across Taylor and Madison Counties before moving into Lowndes County in South Central Georgia. The hurricane produced a devastat…

Flash Flood · Apr 11, 2024. A major flash flood event occurred across portions of the Florida big bend and southern Georgia during the late night hours of April 10th through the early morning hours of April 11th. Between 6 and 10 inches of rain fell with localized higher amounts, particularly over Tallahassee. This resulted in rapid water rises across Tallahassee with numerous cars and structures flooded. Several million dollars in flood…

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 Jefferson County

If a building in Jefferson 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.