Enter any address in Davison County, South Dakota to see its FEMA flood zone
Flood events, including flash floods, are the primary flood character in Davison County, SD. Between 1994 and 2024, NOAA Storm Events data recorded 80 flood events and 19 flash flood events, resulting in one reported death. Recent significant rainfall events in June 2024 caused widespread flooding, with totals between 5 and 15 inches, leading to major river flooding and extensive overland inundation in the region.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced substantial payouts with an average water depth of 9.2 feet. Claims in Zone X also show significant average payouts, though with lower water depths. Residents in areas designated as Zone A, and those in Zone X with a history of claims, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
20 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Davison County, South Dakota has recorded 99 flood-related events since 1996 according to NOAA's Storm Events Database, including 19 flash floods and 80 river or area floods. The county has received 15 federal disaster declarations, 6 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1976–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Straight-line Winds, And Flooding | Flood | Jun 16, 2024 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Sep 9, 2019 |
| Severe Winter Storm, Snowstorm, And Flooding | Flood | Mar 13, 2019 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | May 4, 2007 |
| Severe Winter Storm | Severe Storm | Nov 27, 2005 |
| Hurricane Katrina Evacuation | Coastal Storm | Sep 6, 2005 |
| Severe Flooding, Sever Winter Storms,heavy Rains High Winds | Flood | Feb 3, 1997 |
| Severe Winter Storms And Blizzard Conditions | Severe Storm | Jan 3, 1997 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Jun 21, 2024 | 0.00K |
| Flood | Jun 20, 2024 | 10.25M |
| Flash Flood | Jun 20, 2024 | 0.00K |
| Flood | Jul 1, 2024 | 0.00K |
| Flood | Apr 18, 2023 | 0.00K |
| Flood | May 1, 2023 | 0.00K |
| Flood | Jun 1, 2023 | 0.00K |
| Flood | May 30, 2022 | 0.00K |
| Flood | Jun 1, 2022 | 0.00K |
| Flood | Jul 1, 2022 | 0.00K |
Flood — Jun 21, 2024
A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches with pockets in excess of 15 inches across portions of southeast South Dakota, northwest Iowa, and southwest Minnesota. As rainfall reached area streams and rivers, major to record flooding was observed, devastating several towns and communities. Extensive overland flooding al...
Flood — Jun 20, 2024
A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches with pockets in excess of 15 inches across portions of southeast South Dakota, northwest Iowa, and southwest Minnesota. As rainfall reached area streams and rivers, major to record flooding was observed, devastating several towns and communities. Extensive overland flooding al...
Flash Flood — Jun 20, 2024
Clusters of thunderstorms with very high rainfall rates from 2 to 4 inches per hour developed by midday on June 20, and despite being transient, continued to redevelop through the evening and into the overnight hours. The primary focus occurred along Highway 18 in the afternoon southwest and south of Sioux Falls, then along Interstate 90 during the evening, and settled again to along the Highw...
Flood — Jul 1, 2024
River levels from the historic June flooding remained above flood stage for some locations into July, although continued a declining trend.
Flood — Apr 18, 2023
Rapid snowmelt from a few day period of well above normal temperatures focused on the 11-13th of April resulted in moderate to locally major flooding through much of the James River Basin. Some areas north of I-90 lost between 2 to 5 inches of snow water equivalent (SWE) from the first to second week of April, but antecedent drought conditions resulted in only a percentage of this water actuall...
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 Davison County, South Dakota:
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 Davison County, South Dakota 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.