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Flood in Johnson County, Kentucky
68 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 68 flood events in Johnson County, Kentucky, between 1950 and 2026, spread over 18 years.
June is the busiest month, with 16 of the recorded events. The last 20 years account for 40 events against 28 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.8% of the 8,294 flood events recorded in Kentucky; its 26.0 per 100 square miles compares with 21.0 statewide.
NCEI attributes 4 deaths in the county to floods and flash floods.
Compared with Kentucky
| Measure | Johnson County | Kentucky | US |
|---|---|---|---|
| Flood events since 1950 | 68 | 8,294 | 183,559 |
| Per 100 square miles | 26.0 | 21.0 | 5.2 |
| Per 10,000 residents | 30.1 | 18.4 | 5.5 |
| Deaths recorded | 4 | 169 | 2,961 |
| Busiest month | June | May | June |
By year
Seasonality
0Feb
6Mar
7Apr
5May
11Jun
16Jul
10Aug
4Sep
4Oct
2Nov
1Dec
2
Recorded events
All 68 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 4 Apr 2025 | Flash Flood | — | — | — | — | — | County |
| 1 Mar 2021 | Flood | — | — | — | — | — | County |
| 1 Mar 2021 | Flood | — | — | — | — | — | County |
| 1 Mar 2021 | Flood | — | — | — | — | — | County |
| 1 Mar 2021 | Flood | — | — | — | — | — | County |
| 23 Feb 2019 | Flash Flood | — | — | — | — | — | County |
| 20 Feb 2019 | Flood | — | — | — | — | — | County |
| 27 Sep 2018 | Flood | — | — | — | — | — | County |
| 11 Feb 2018 | Flood | — | $25K | — | — | — | County |
| 28 Jul 2017 | Flash Flood | — | $1K | — | — | — | County |
| 28 Jul 2017 | Flash Flood | — | $1K | — | — | — | County |
| 13 Jul 2015 | Flash Flood | — | $3.5M | — | 4 | 15 | County |
| 13 Jul 2015 | Flash Flood | — | $1K | — | — | — | County |
| 13 Jul 2015 | Flash Flood | — | $1K | — | — | — | County |
| 5 Jul 2015 | Flash Flood | — | $10K | — | — | — | County |
| 4 Mar 2015 | Flood | — | $1K | — | — | — | County |
| 6 Sep 2014 | Flash Flood | — | $1K | — | — | — | County |
| 4 Sep 2014 | Flash Flood | — | $1K | — | — | — | County |
| 22 Aug 2014 | Flash Flood | — | $3.0M | — | — | — | County |
| 22 Aug 2014 | Flash Flood | — | $10K | — | — | — | County |
| 22 Aug 2014 | Flash Flood | — | $1K | — | — | — | County |
| 5 Jun 2014 | Flash Flood | — | $1K | $1K | — | — | County |
| 5 Jun 2014 | Flash Flood | — | $1K | $1K | — | — | County |
| 5 Jun 2014 | Flash Flood | — | $1K | $1K | — | — | County |
| 4 Jun 2014 | Flash Flood | — | $1K | $1K | — | — | County |
| 4 Jun 2014 | Flash Flood | — | $1K | $1K | — | — | County |
| 4 Jun 2014 | Flash Flood | — | $1K | $1K | — | — | County |
| 4 Jun 2014 | Flash Flood | — | $1K | $1K | — | — | County |
| 6 Dec 2013 | Flood | — | $1K | $1K | — | — | County |
| 6 Dec 2013 | Flood | — | $1K | $1K | — | — | County |
| 11 Aug 2013 | Flood | — | — | $1K | — | — | County |
| 19 May 2013 | Flash Flood | — | — | — | — | — | County |
| 2 Mar 2012 | Flash Flood | — | — | — | — | — | County |
| 11 May 2011 | Flash Flood | — | $5K | — | — | — | County |
| 11 May 2011 | Flash Flood | — | — | — | — | — | County |
| 11 May 2011 | Flash Flood | — | — | — | — | — | County |
| 11 May 2011 | Flash Flood | — | — | — | — | — | County |
| 11 May 2011 | Flash Flood | — | — | — | — | — | County |
| 12 Jun 2010 | Flash Flood | — | — | — | — | — | County |
| 12 Jun 2010 | Flood | — | — | — | — | — | County |
| 14 Jul 2006 | Flash Flood | — | — | — | — | — | County |
| 30 Apr 2005 | Flood | — | — | — | — | — | Forecast zone |
| 30 Apr 2005 | Flash Flood | — | — | — | — | — | County |
| 21 Oct 2004 | Flash Flood | — | $2K | — | — | — | County |
| 20 Oct 2004 | Flash Flood | — | — | — | — | — | County |
| 17 Sep 2004 | Flood | — | — | — | — | — | Forecast zone |
| 12 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 31 May 2004 | Flash Flood | — | — | — | — | — | County |
| 31 May 2004 | Flood | — | $4.0M | — | — | — | Forecast zone |
| 30 May 2004 | Flash Flood | — | — | — | — | — | County |
| 30 May 2004 | Flash Flood | — | — | — | — | — | County |
| 13 Apr 2004 | Flash Flood | — | — | — | — | — | County |
| 12 Nov 2003 | Flash Flood | — | $10K | — | — | — | County |
| 16 Jul 2003 | Flash Flood | — | — | — | — | — | County |
| 16 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 11 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 16 Feb 2003 | Flood | — | $50K | — | — | — | Forecast zone |
| 16 Feb 2003 | Flood | — | $537K | — | — | — | Forecast zone |
| 15 Feb 2003 | Flash Flood | — | — | — | — | — | County |
| 2 May 2002 | Flash Flood | — | — | — | — | — | County |
| 19 Mar 2002 | Flood | — | $50K | — | — | — | Forecast zone |
| 5 Jul 2000 | Flash Flood | — | $5K | — | — | — | County |
| 21 Jun 2000 | Flood | — | $1K | — | — | — | County |
| 21 Jun 2000 | Flood | — | — | — | — | — | County |
| 17 Jun 2000 | Flash Flood | — | $3K | — | — | — | County |
| 19 Jul 1998 | Flash Flood | — | $10K | — | — | — | County |
| 10 Jun 1998 | Flash Flood | — | $500K | — | — | — | County |
| 19 Apr 1998 | Flash Flood | — | $25K | — | — | — | County |
Questions and answers
How many flood events has Johnson County had?
68 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Johnson County?
4 Apr 2025 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Johnson County?
The flood of 31 May 2004, with property damage estimated by NCEI at $4.0M.
How does Johnson County compare with Kentucky for flood?
26.0 events per 100 square miles against 21.0 statewide; the county holds 68 of the state's 8,294 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Flood hub and the county page.