Enter any address in Johnson County, Kentucky to see its FEMA flood zone
Flash flooding events are the most frequent type of flooding in Johnson County, KY, with 48 recorded incidents in the last 30 years, resulting in 4 fatalities. Additionally, 20 general flood events have occurred during the same period. Recent significant flooding was observed in March 2021, following several rounds of heavy rain that caused widespread inundation across central and eastern Kentucky, with some areas experiencing the most severe flooding in decades. Another notable event occurred on April 2, 2025, attributed to a strong convective squall line.
National Flood Insurance Program (NFIP) data indicates that properties in Zone A have experienced the highest number of claims, with 175 claims averaging $15,871 and an average water depth of 5.8 feet. Properties in Zone X, while fewer in number (42 claims), show a higher average payout of $34,562 with an average water depth of 4.4 feet. Homeowners in Zone A, as well as those in Zone X and Zone X_UNSHADED, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
19 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Johnson County, Kentucky has recorded 68 flood-related events since 1996 according to NOAA's Storm Events Database, including 48 flash floods and 20 river or area floods. The county has received 48 federal disaster declarations, 11 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1967–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 23, 2026 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Severe Storm | Apr 2, 2025 |
| Severe Storms, Straight-line Winds, Tornadoes, Flooding, Landslides, And Mudslides | Severe Storm | Apr 2, 2025 |
| Severe Storms, Straight-line Winds, Flooding, And Landslides | Severe Storm | Feb 14, 2025 |
| Severe Storms, Straight-line Winds, Flooding, Landslides, And Mudslides | Severe Storm | Feb 14, 2025 |
| Remnants Of Hurricane Helene | Tropical Storm | Sep 27, 2024 |
| Severe Storms, Straight-line Winds, Tornadoes, Flooding, Landslides, And Mudslides | Severe Storm | Mar 3, 2023 |
| Severe Storms, Straight-line Winds, Flooding, Landslides, And Mudslides | Flood | Feb 15, 2023 |
| Severe Storms, Flooding, Landslides, And Mudslides | Flood | Jul 26, 2022 |
| Severe Storms, Straight-line Winds, Tornadoes, Flooding, Landslides | Severe Storm | Dec 31, 2021 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Apr 4, 2025 | 0.00K |
| Flood | Mar 1, 2021 | 0.00K |
| Flash Flood | Feb 23, 2019 | 0.00K |
| Flood | Feb 20, 2019 | 0.00K |
| Flood | Sep 27, 2018 | 0.00K |
| Flood | Feb 11, 2018 | 25.00K |
| Flash Flood | Jul 28, 2017 | 1.00K |
| Flash Flood | Jul 13, 2015 | 1.00K |
| Flash Flood | Jul 13, 2015 | 3.50M (4 deaths) |
| Flash Flood | Jul 5, 2015 | 10.00K |
Flash Flood — Apr 4, 2025
On the afternoon of the 2nd a strong surface low was located over the MN/WI area, with a warm front extending southwest through the OH valley, and a trailing cold front extending SSE through the Ozarks. By 00Z (the evening of the 2nd), a strong convective squall line had developed across the Ohio and Mississippi Valley which slowly continued east through the evening. By early morning on the 3rd...
Flood — Mar 1, 2021
Several rounds of heavy rain moved across eastern Kentucky from late Friday, February 26th through early Monday, March 1st. The combination of all the heavy rainfall led to significant flooding across a good portion of central and east Kentucky. For some areas, this was the most significant flooding in the last 50 to 60 years, or more. FEMA estimates that this event cost $350-400 million doll...
Flash Flood — Feb 23, 2019
Periods of rain worked back into eastern Kentucky early on February 20 as a warm frontal boundary lifted north across the Commonwealth. A cold front brought additional rainfall through the afternoon and evening, before drier conditions worked into eastern Kentucky during the morning of February 21. ||Rain quickly spread back north that evening into the 22nd with southeastern Kentucky continuing...
Flood — Feb 20, 2019
Periods of rain worked back into eastern Kentucky early on February 20 as a warm frontal boundary lifted north across the Commonwealth. A cold front brought additional rainfall through the afternoon and evening, before drier conditions worked into eastern Kentucky during the morning of February 21. ||Rain quickly spread back north that evening into the 22nd with southeastern Kentucky continuing...
Flood — Sep 27, 2018
A multiple day period of rainfall led to flooding and flash flooding across portions of southeast and far eastern Kentucky on this day. A cold front, which pushed into eastern Kentucky on September 26, stalled across southeast Kentucky and oozed back toward the northwest today. This brought another widespread round of 1-2 inches of rain across eastern Kentucky, with amounts exceeding 2.5 inches...
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Johnson 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.
Properties in Johnson 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.