Enter any address in Dallas County, Missouri to see its FEMA flood zone
Flash flooding from heavy rainfall events is the dominant flood character in Dallas County, MO. Between 1993 and 2023, NOAA Storm Events data recorded 102 flash flood events and 48 general flood events. For example, multiple rounds of showers and thunderstorms in April 2025 brought significant flash flooding and minor to moderate river flooding to south central Missouri, resulting in fatalities.
While most flood claims in Dallas County occur in Zone X, which saw an average payout of $21,903 with an average water depth of 2.0 feet, residents should be aware of flood risks. Homeowners, journalists, and real estate agents should pay particular attention to properties located near waterways or in areas prone to rapid water accumulation during intense rainfall.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
48 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Dallas County, Missouri has recorded 150 flood-related events since 1996 according to NOAA's Storm Events Database, including 102 flash floods and 48 river or area floods. The county has received 25 federal disaster declarations, 4 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1973–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | May 3, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Apr 29, 2019 |
| Severe Storms, Tornadoes, Straight-line Winds And Flooding | Flood | Apr 28, 2017 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Flood | Dec 23, 2015 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | May 15, 2015 |
| Severe Storms, Straight-line Winds And Flooding | Severe Storm | Aug 2, 2013 |
| Severe Winter Storm | Severe Storm | Jan 31, 2011 |
| Severe Winter Storm And Snowstorm | Severe Storm | Jan 31, 2011 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Apr 20, 2025 | 0.00K |
| Flash Flood | Jun 15, 2025 | 0.00K |
| Flood | May 8, 2025 | 0.00K (1 deaths) |
| Flood | Jul 8, 2025 | 0.00K |
| Flash Flood | Jun 4, 2025 | 0.00K |
| Flood | Apr 4, 2025 | 0.00K |
| Flash Flood | Apr 4, 2025 | 0.00K |
| Flash Flood | May 26, 2024 | 0.00K |
| Flood | Apr 26, 2024 | 0.00K |
| Flash Flood | Jun 9, 2024 | 30.00K |
Flood — Apr 20, 2025
Slow moving storms produced heavy rainfall across portions of the Ozarks causing flooding of multiple low water areas. The initial storms that develop the evening of the 18th were able to take advantage at limited shear and instability to produce a brief EF0 tornado and localized wind damage.
Flash Flood — Jun 15, 2025
A tropical like airmass allow for thunderstorms to produce very heavy rainfall across southern Missouri during the afternoon and evening of June 15th. Several roads were closed due to flooding.
Flood — May 8, 2025
An estimated 0.25 to 0.50 inches of rainfall occurred on May 8, 2025. A moped was driven into a low water crossing before being swept away into Lindley Creek. This ultimately led to a fatality.
Flood — Jul 8, 2025
An isolated and slow moving thunderstorm moved across Cedar, Polk and Dallas counties and produced hail to the size of nickels and localized flooding.
Flash Flood — Jun 4, 2025
A very moist airmass led to the development of thunderstorms with heavy rainfall rates during the morning and afternoon of June 4th. Significant flash flooding occurred in and around the city of Marshfield. Additional heavy rainfall caused flooding into the evening and overnight hours with some areas picking up two day totals of 3-5 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 Dallas County, Missouri:
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 Dallas County, Missouri 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.