Enter any address in Allamakee County, Iowa to see its FEMA flood zone
River overflow along the Mississippi and other area rivers characterizes flood risk in Allamakee County. Recent events in June and July 2024, for example, saw widespread river flooding across northeast Iowa, with rainfall upwards of 5 inches contributing to the Mississippi River and other basins entering flood stage. This type of flooding can persist for extended periods, as seen with the Mississippi River mainstem continuing into July during those events.
Over the last 30 years, NOAA Storm Events data shows 37 flood events and 33 flash flood events in the county. NFIP claims data indicates that properties in Zone A have experienced an average of 2.9 feet of water depth with an average payout of $5,549. Properties in Zone X have seen an average water depth of 2.0 feet with a higher average payout of $10,999, suggesting that even areas outside of high-risk zones can experience significant flood damage. Residents in areas prone to river flooding, particularly those near the Mississippi, Upper Iowa, and Turkey Rivers, should pay close attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
42 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Allamakee County, Iowa has recorded 70 flood-related events since 1996 according to NOAA's Storm Events Database, including 33 flash floods and 37 river or area floods. The county has received 22 federal disaster declarations, 12 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1965–2023)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Flooding | Flood | Apr 24, 2023 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms And Flooding | Flood | Mar 12, 2019 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Jul 19, 2017 |
| Severe Storms And Flooding | Flood | Sep 21, 2016 |
| Severe Storms, Straight-line Winds, And Flooding | Flood | Aug 23, 2016 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Jun 20, 2015 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Flood | Jun 14, 2014 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Jun 21, 2013 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Aug 19, 2025 | 0.00K |
| Flood | Jun 30, 2024 | 0.00K |
| Flood | Jun 24, 2024 | 25.00K |
| Flood | Jun 24, 2024 | 35.00K |
| Flash Flood | Jun 22, 2024 | 5.00K |
| Flash Flood | Jun 3, 2024 | 1.00K |
| Flash Flood | Jun 3, 2024 | 10.00K |
| Flood | Jul 1, 2024 | 31.00K |
| Flood | Apr 21, 2023 | 0.00K |
| Flood | May 1, 2023 | 0.00K |
Flood — Aug 19, 2025
Heavy rain throughout the middle of August contributed to rises along many area rivers in northeast Iowa. This included minor to moderate flooding along portions of the Little Cedar and Cedar Rivers, as well as the Upper Iowa and Turkey Rivers.
Flood — Jun 30, 2024
Well above average rainfall throughout June in conjunction with late-month heavy rainfall contributed to additional rises into flood stage along the Mississippi River. River gauges at both Guttenberg and Lansing reached minor flood stage before the end of the month and observed rising river levels into July.
Flood — Jun 24, 2024
Above normal rainfall over the course of June, combined with a robust rainfall event between June 20th and 22nd, led to widespread river flooding across portions of northeast Iowa. Rainfall amounts upwards of 5 inches between the 20th and 22nd allowed the Mississippi River, Cedar River and many other river basins in northeast Iowa to enter flood stage towards the end of June. Flooding along the...
Flash Flood — Jun 22, 2024
On June 22nd, an initial round of thunderstorms produced localized flash flooding in Fayette County. A secondary round of storms moved through northeast Iowa during the afternoon, producing localized flooding and wind damage in Allamakee County.
Flash Flood — Jun 3, 2024
During the late afternoon and evening hours of June 3rd, a cluster of thunderstorms produced heavy rain across portions of Allamakee County, leading to a few localized mud slides.
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 Allamakee County, Iowa:
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 Allamakee County, Iowa 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.