Enter any address in Mercer County, North Dakota to see its FEMA flood zone
8 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Mercer County, North Dakota has recorded 12 flood-related events since 1996 according to NOAA's Storm Events Database, including 4 flash floods and 8 river or area floods. The county has received 24 federal disaster declarations, 14 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1966–2023)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Flooding | Flood | Apr 10, 2023 |
| Severe Winter Storm, Snowstorm, And Straight-line Winds | Snowstorm | Nov 9, 2022 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Flooding | Flood | Apr 5, 2011 |
| Flooding | Flood | Feb 14, 2011 |
| Severe Winter Storm | Severe Storm | Apr 1, 2010 |
| Flooding | Flood | Feb 26, 2010 |
| Severe Winter Storm | Severe Storm | Jan 20, 2010 |
| Severe Storms And Flooding | Severe Storm | Mar 13, 2009 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Apr 11, 2023 | 70.00K |
| Flash Flood | Jun 28, 2018 | 8.00K |
| Flood | Aug 15, 2014 | 2.50M |
| Flood | Jun 2, 2011 | 500.00K |
| Flood | Jul 1, 2011 | 0.00K |
| Flood | Aug 1, 2011 | 0.00K |
| Flash Flood | Sep 9, 2010 | 45.00K |
| Flood | Mar 6, 2009 | 553.00K |
| Flood | Apr 1, 2009 | 255.00K |
| Flash Flood | Aug 24, 2006 | 40K |
Flood — Apr 11, 2023
The spring snow melt of 2023 saw many areas of flooding over North Dakota due to a record deep snow pack and relatively fast melt. Multiple counties experienced infrastructure damage due to the flooding. In addition, during the morning hours of April 16, a flood death (direct) occurred as a 54 year old female was driving a 2004 Ford Escape along ND Highway 66 near the intersection of 47th Avenu...
Flash Flood — Jun 28, 2018
An extremely unstable atmosphere combined with very strong deep layer wind shear set the stage for intense thunderstorm development. Initially, thunderstorms were supercells, and formed along a warm front that lifted through North Dakota in the afternoon and evening hours. One of the supercell thunderstorms produced flash flooding in Dunn and Mercer counties, while another produced 3.50 inch di...
Flood — Aug 15, 2014
Several waves of heavy rain, with embedded non severe thunderstorms with torrential rain, moved through western and central North Dakota. There was overland, stream, river and flash flooding, mainly over the southern half of the western and central parts of the state. The hardest hit areas were between Williston and Dickinson, and between Bismarck and Jamestown. Up to six inches of rain fell fr...
Flood — Jun 2, 2011
This was part of historic flooding in North Dakota with statewide costs estimated around 1.5 billion dollars. Flooding was the result of significant winter snows and significant spring rains, not only in North Dakota but in Montana as well. Rocky Mountain snowpack was four to six times normal. Flooding was along the Missouri River from the Garrison Dam to the South Dakota border. Dams were over...
Flood — Jul 1, 2011
This was part of historic flooding in North Dakota with statewide costs estimated around 1.5 billion dollars. Flooding was the result of significant winter snows and significant spring rains, not only in North Dakota but in Montana as well. Rocky Mountain snowpack was four to six times normal. Flooding was along the Missouri River from the Garrison Dam to the South Dakota border. Dams were over...
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 Mercer County, North 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 Mercer County, North 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.