Enter any address in Johnson County, Indiana to see its FEMA flood zone
Flash flooding from heavy rainfall events is a significant concern in Johnson County, Indiana. Over the past 30 years, NOAA has recorded 41 flood events and 18 flash flood events in the county. For example, on April 4, 2025, multiple days of rain totaling 2-4.5 inches exacerbated existing creek and river flooding, leading to major flood stage on several rivers. Similarly, on February 7, 2019, heavy rainfall associated with a low-pressure system produced flash flooding and extensive flooding along rivers and streams.
National Flood Insurance Program (NFIP) data indicates that properties in Zone A have experienced the most claims, with an average payout of $29,507 and an average water depth of 8.5 feet. Properties in Zone X also show a substantial number of claims, with an average payout of $21,991 and an average water depth of 5.3 feet. Homeowners in Zone A and Zone X, as well as those in areas with less defined flood risk like Zone X_UNSHADED and Zone X_SHADED, should pay close attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
21 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Johnson County, Indiana has recorded 59 flood-related events since 1996 according to NOAA's Storm Events Database, including 18 flash floods and 41 river or area floods. The county has received 16 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 (1990–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 23, 2026 |
| Severe Storms, Straight-line Winds, And Tornadoes | Severe Storm | Mar 31, 2023 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Winter Storm And Snowstorm | Severe Storm | Jan 5, 2014 |
| Severe Storms, Flooding, And Tornadoes | Severe Storm | May 30, 2008 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Severe Winter Storms And Flooding | Severe Storm | Jan 1, 2005 |
| Snow | Snowstorm | Dec 21, 2004 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | May 25, 2004 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Apr 4, 2025 | 25.00K |
| Flash Flood | Feb 7, 2019 | 40.00K |
| Flash Flood | Feb 7, 2019 | 20.00K |
| Flood | Jul 11, 2017 | 1.00K |
| Flood | Jul 11, 2017 | 0.50K |
| Flood | Jun 26, 2015 | 1.00K |
| Flash Flood | Jul 17, 2015 | 50.00K |
| Flash Flood | Dec 22, 2013 | 10.00K |
| Flood | Sep 19, 2013 | 0.50K |
| Flood | Mar 30, 2012 | 0.50K |
Flash Flood — Apr 4, 2025
The final round of rain in a stretch of 4 days brought rain amounts of 2-4.5 inches of rain to central Indiana in addition to the 3-5 inches that had fallen. This led to additional widespread flash flooding and exacerbated ongoing creek and river flooding to a point that many main stem rivers ended up reaching major flood stage.
Flash Flood — Feb 7, 2019
A low pressure system moved into the forecast area bringing plentiful moisture and produced thunderstorms and waves of moderate to heavy rain to central Indiana around February 7th. The storms produced a tornado in a strong shear and low instability environment. Over 4 inches of rain fell in a couple of days in some areas. The heavy rain produced flash flooding, and extensive flooding developed...
Flood — Jul 11, 2017
Northwest flow in the upper atmosphere allowed multiple waves to move across the area. The atmosphere had a high moisture content and was unstable. The waves interacted with the moisture and instability to produce the severe weather and heavy rain. Multiple rounds of thunderstorms moved over the same locations, creating the flooding problems. Several rounds of thunderstorms, from July 10th thro...
Flood — Jun 26, 2015
The last widespread rains of the month were the result of a developing low pressure area that moved through the state on the 26th and early on the 27th. Numerous flooding problems developed quickly across mainly northern sections of central Indiana. People were rescued from cars and homes were flooded in the Muncie area and other areas of east central Indiana. Much of the state along and north ...
Flash Flood — Jul 17, 2015
Thunderstorms developed in a hot and unstable atmosphere across central Indiana during the afternoon and early evening of July 17th. The storms produced 2 tornadoes in southeast Tippecanoe County along with some hail and strong winds elsewhere. The storms also brought very heavy rain, which resulted in flash flooding in some areas, including parts of the Indianapolis Metro Area.
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, Indiana:
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, Indiana 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.