Enter any address in Johnson County, Georgia to see its FEMA flood zone
Tropical storms and associated flooding are the most frequent flood-related events in Johnson County, GA, with 12 tropical storm events, 4 flood events, 4 flash flood events, and 3 hurricane events recorded over the past 30 years. For example, Hurricane Helene brought widespread rainfall between 6 and 14 inches to central Georgia in September 2024, and Tropical Storm Irma was a significant event in September 2017.
Additionally, flash flooding from heavy rainfall has occurred, such as in February 2016 when 3 to 4 inches of rain in less than 12 hours caused isolated flash flooding. National Flood Insurance Program (NFIP) data shows one claim in Zone A with an average payout of $36,634 and an average water depth of 1.0 foot.
Residents in Zone A, as well as those living near rivers or in areas prone to heavy rainfall, should pay close attention to flood risks.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
8 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Johnson County, Georgia has recorded 23 flood-related events since 1996 according to NOAA's Storm Events Database, including 4 flash floods and 4 river or area floods. The county has received 19 federal disaster declarations, 2 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1977–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 22, 2026 |
| Hurricane Helene | Tropical Storm | Sep 24, 2024 |
| Hurricane Debby | Tropical Storm | Aug 4, 2024 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Michael | Hurricane | Oct 9, 2018 |
| Hurricane Irma | Hurricane | Sep 7, 2017 |
| Severe Winter Storm | Severe Ice Storm | Feb 10, 2014 |
| Severe Storms And Tornadoes | Severe Storm | May 11, 2008 |
| Hurricane Katrina Evacuation | Hurricane | Aug 27, 2005 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Hurricane (Typhoon) | Sep 27, 2024 | — |
| Tropical Storm | Oct 10, 2018 | 0.00K |
| Tropical Storm | Sep 11, 2017 | 200.00K |
| Flash Flood | Feb 3, 2016 | 10.00K |
| Flood | Jul 13, 2013 | 30.00K |
| Flash Flood | Jun 7, 2013 | 6.00K |
| Flash Flood | Jul 4, 2013 | 50.00K |
| Tropical Storm | Sep 4, 2011 | 0.00K |
| Tropical Storm | Nov 10, 2009 | 0.00K |
| Flood | Apr 2, 2009 | 70.00K |
Hurricane (Typhoon) — Sep 27, 2024
Hurricane Helene made landfall as a Category 4 hurricane in the Big Bend region of Florida at 11 PM EDT. Helene moved quickly inland bringing wind gusts between 50 and 100 mph to portions of east and central Georgia. Widespread rainfall totals between 6 and 14 inches were observed in association with Helene across north and central Georgia. The highest rainfall amounts were primarily observed i...
Tropical Storm — Oct 10, 2018
Hurricane Michael made landfall along the Florida panhandle at Mexico beach (just southeast of Panama City) on the afternoon of October 10, 2018 as a high-end Category 4 hurricane (max winds of 155 MPH). Michael then moved rapidly inland, causing widespread wind damage along its path as it swept northeast across south and central Georgia. Hurricane Michael was the first major hurricane, categor...
Tropical Storm — Sep 11, 2017
On the morning of August 30th Tropical Storm Irma developed rapidly over the eastern Atlantic Ocean, just west of the Cape Verde Islands. Tropical Irma quickly strengthened as it moved west, reaching hurricane strength by the morning of August 31st. Hurricane Irma continued to move steadily westward across the Atlantic Ocean, intensifying to category 4 storm on the Saffir-Simpson scale as it ap...
Flash Flood — Feb 3, 2016
A persistent and strong El Nino weather pattern remained over the United States into February. A deep and strong southwesterly upper-level flow across the eastern U.S. resulted in an extremely moist and moderately unstable atmosphere over north and central Georgia. A slow moving frontal boundary and a series of short waves in the southwesterly flow aloft resulted in multiple rounds of heavy rai...
Flood — Jul 13, 2013
Several days of heavy rain caused very wet soil conditions across portions of central Georgia. Additional rainfall amounts around two inches in a few counties caused long-term areal flooding which washed out culverts or damaged several roads.
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, Georgia:
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, Georgia 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.