Enter any address in Sumner County, Kansas to see its FEMA flood zone
Flash flooding from heavy rainfall is the primary flood hazard in Sumner County, Kansas. Over the last 30 years, NOAA Storm Events data shows 40 recorded flash flood events and 34 flood events, with one recorded fatality. Recent events include significant flash flooding in May 2019 and widespread flooding from heavy rain in July 2020.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced the most claims, with an average payout of $17,854 and an average water depth of 3.5 feet. Properties in Zone X have also seen substantial claims, averaging $14,277 with a notable average water depth of 10.4 feet, despite fewer claims. Homeowners in areas designated as Zone A, and those in Zone X, should pay particular attention to their flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
30 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Sumner County, Kansas has recorded 74 flood-related events since 1996 according to NOAA's Storm Events Database, including 40 flash floods and 34 river or area floods. The county has received 26 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 (1973–2025)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Straight-line Winds, And Flooding | Severe Storm | Jul 17, 2025 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Severe Storm | Jun 3, 2025 |
| Severe Storms And Straight Line Winds | Severe Storm | Dec 15, 2021 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Tornadoes And Flooding | Severe Storm | May 9, 2019 |
| Severe Storms, Straight-line Winds, Tornadoes, Flooding,landslides,and Mudslides | Severe Storm | Apr 28, 2019 |
| Severe Storms, Straight-line Winds, And Flooding | Severe Storm | Oct 4, 2018 |
| Severe Storms And Flooding | Severe Storm | Sep 2, 2016 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | May 4, 2015 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Aug 28, 2025 | 0.00K |
| Flood | Jul 10, 2020 | 0.00K |
| Flash Flood | May 27, 2019 | 0.00K |
| Flash Flood | May 26, 2019 | 0.00K |
| Flood | Jun 18, 2019 | 0.00K |
| Flash Flood | May 8, 2019 | 0.10K |
| Flash Flood | May 8, 2019 | 2.00M |
| Flash Flood | May 8, 2019 | 200.00K |
| Flash Flood | May 7, 2019 | 50.00K |
| Flash Flood | May 7, 2019 | 0.10K |
Flash Flood — Aug 28, 2025
Very heavy rainfall moved across portions of south-central Kansas during the morning hours of August 28th. This heavy rain resulted in the flooding of the Kansas Turnpike near Wellington.
Flood — Jul 10, 2020
An early morning complex of storms moved across south central Kansas producing sporadic severe weather on July 10th, 2020. The main issue was very heavy rain. Most locations were between 2 and 3 inches. However, one report of 4.5 inches was noted in Kingman county.
Flash Flood — May 27, 2019
Severe thunderstorms broke out across Barton & Lincoln Counties in the evening. Then, as evening progressed, the severe thunderstorms spread across most of the remainder of Central Kansas, then across South-Central Kansas overnight, before finally weakening as they approached Greenwood County early in the morning on the 27th. The severe thunderstorms started as hail-producers, then as they surg...
Flash Flood — May 26, 2019
Clusters of thunderstorms with heavy rains caused further flash flooding in parts of South & Southeast Kansas in the morning on the 26th. Thunderstorms that had occurred the previous evening produced, on average, up to around 3 inches of rain. The renewed thunderstorms that occurred the following morning produced another 1 to 3 inches this morning.
Flood — Jun 18, 2019
Large hail, powerful winds, and heavy rains plagued the area on the 18th. Hail up to the size of tennis balls were reported along with 70 plus mph winds. Copious amounts of rain also fell with flash flooding being an issue and several locations.
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 Sumner County, Kansas:
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 Sumner County, Kansas 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.