FloodZoneMap.org

Nicholas County, Kentucky Flood Zones

Check an Address in Nicholas County

Enter any address in Nicholas County, Kentucky to see its FEMA flood zone

The Flooding Character of Nicholas County

Flash flooding from thunderstorms is the dominant flood character in Nicholas County. In July 2023, heavy rainfall from thunderstorms resulted in over 5 inches of rain in some areas. In July 2021, scattered thunderstorms caused flash flooding, destroying buildings and vehicles, and leading to a fatality in Carlisle.

National Flood Insurance Program data shows that properties in Zone A have experienced the most claims, with an average payout of $68,108 and an average water depth of 5.9 feet. Properties in Zone X_UNSHADED have also seen claims, averaging $17,035 with a water depth of 2.6 feet. Homeowners in Zone A and Zone X_UNSHADED, as well as those in areas with unknown flood risk, should pay the most attention to flood potential.

Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.

Read First-Hand Flood Stories from Nicholas County

24 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.

Read Kentucky flood stories →

Flood Risk Data for Nicholas County

Nicholas County, Kentucky has recorded 66 flood-related events since 1996 according to NOAA's Storm Events Database, including 26 flash floods and 40 river or area floods. The county has received 32 federal disaster declarations, 3 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Nicholas County Disaster History

FEMA Disaster Declarations (1989–2026)

Disaster Declarations
32
Flood/Coastal Disasters
3
Latest Disaster
Severe Winter Storm (2026-01-23)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Nicholas County

DeclarationTypeDate
Severe Winter StormWinter StormJan 23, 2026
Severe Storms, Straight-line Winds, Tornadoes, And FloodingSevere StormApr 2, 2025
Severe Storms, Straight-line Winds, Tornadoes, Flooding, Landslides, And MudslidesSevere StormApr 2, 2025
Severe Storms, Straight-line Winds, Flooding, And LandslidesSevere StormFeb 14, 2025
Severe Storms, Straight-line Winds, Flooding, Landslides, And MudslidesSevere StormFeb 14, 2025
Remnants Of Hurricane HeleneTropical StormSep 27, 2024
Severe Storms, Straight-line Winds, Tornadoes, Flooding, Landslides, And MudslidesSevere StormMar 3, 2023
Severe Winter Storms, Landslides, And MudslidesSevere Ice StormFeb 8, 2021
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020

Recorded Flood Events in Nicholas County

NOAA Storm Events Database (1996–2025)

Total Flood Events
66
River/Area Floods
40
Flash Floods
26
Total Property Damage
$3.6M
Flood Deaths
2

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Nicholas County

TypeDateDamage
Flash FloodJul 27, 20230.00K (1 deaths)
Flash FloodJul 30, 20211.00M (1 deaths)
Flash FloodJul 29, 20211.00M
Flash FloodAug 16, 20210.00K
FloodMay 19, 20200.00K
Flash FloodMay 19, 20200.00K
FloodFeb 20, 20190.00K
Flash FloodAug 7, 20190.00K
Flash FloodJun 6, 20190.00K
FloodJul 31, 20180.00K

Nicholas County Flood History

Flash Flood — Jul 27, 2023

Northwest flow in the mid- and upper-levels of the atmosphere placed central Kentucky and southern Indiana on the edge of a ring of fire type pattern for several days at the end of July 2023. While most of the waves of convection remained to the north of the area thanks to building ridging aloft July 27th into the 28th, thunderstorms on July 27th clipped the Kentucky Bluegrass region. The prima...

Flash Flood — Jul 30, 2021

Scattered thunderstorms, ahead of a could front, drifted south through southern Indiana and the Bluegrass region of Kentucky in an unstable environment. Some of these storms became severe causing isolated tree damage and flash flooding in Kentucky counties. The most severe flooding was in Carlisle, Kentucky after heavy rainfall continued falling over the same area. Several buildings and vehicle...

Flash Flood — Jul 29, 2021

Scattered thunderstorms, ahead of a could front, drifted south through southern Indiana and the Bluegrass region of Kentucky in an unstable environment. Some of these storms became severe causing isolated tree damage and flash flooding in Kentucky counties. The most severe flooding was in Carlisle, Kentucky after heavy rainfall continued falling over the same area. Several buildings and vehicle...

Flash Flood — Aug 16, 2021

On the 14th, a cold front worked its way south through central Kentucky to Tennessee, but by the 16th, the slow moving front was on its way back north as a warm front. Even though the threat of severe weather was low, the moist environment produced isolated flash flooding in two central Kentucky counties.

Flood — May 19, 2020

May 18, the Lower Ohio Valley was primed with a moist atmosphere that was in place from southerly surface flow from the Gulf of Mexico, and as a cold front moved through the region, severe thunderstorms caused tree damage and isolated flooding. On the 19th, the flooding became more widespread as heavy rain was produced from outflow boundaries remaining in the region from the previous day's storms.

Source: NOAA National Weather Service Storm Events Database.

Nicholas County NFIP Flood Insurance Claims

Total Claims Filed
42
Total Paid Out
$1.8M
Avg Claim
$47,121
Avg Water Depth
6.0 ft

Claims by Flood Zone

A Zones (High Risk)
20
X Unshaded (Low)
15

Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).

Flood Zone Types in Nicholas County

FEMA assigns flood zone designations to areas in Nicholas County, Kentucky:

AE High Risk — 1% annual chance of flooding. Insurance required.

VE Very High Risk — Coastal flooding with wave action.

X (Shaded) Moderate Risk — 500-year floodplain.

X Low Risk — Outside major floodplains.

View all flood zone types →

Flood Insurance in Nicholas County

Properties in Nicholas County, Kentucky that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.

Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.

Visit FloodSmart.gov to find an agent and get a quote.