FloodZoneMap.org

Polk County, Minnesota Flood Zones

Check an Address in Polk County

Enter any address in Polk County, Minnesota to see its FEMA flood zone

The Flooding Character of Polk County

Flash flooding from summer thunderstorms is the dominant flood character in Polk County, MN. Between 1994 and 2024, NOAA Storm Events data recorded 38 flash flood events and 24 flood events. Recent examples include flash flooding from widespread thunderstorms on June 18, 2024, and heavy rainfall contributing to flash flooding on August 29, 2024.

NFIP claims data shows that properties in Zone A have experienced the most claims, with an average payout of $29,024 and an average water depth of 9.3 feet. Properties in Zone X_SHADED also show a significant number of claims, with an average payout of $26,003 and an average water depth of 15.3 feet, despite being considered moderate flood risk areas. Homeowners in Zone A, Zone X_SHADED, and those in areas with less defined flood risk should pay close attention to potential flood hazards.

Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.

Read First-Hand Flood Stories from Polk County

11 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.

Read Minnesota flood stories →

Flood Risk Data for Polk County

Polk County, Minnesota has recorded 62 flood-related events since 1996 according to NOAA's Storm Events Database, including 38 flash floods and 24 river or area floods. The county has received 31 federal disaster declarations, 17 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Polk County Disaster History

FEMA Disaster Declarations (1965–2022)

Disaster Declarations
31
Flood/Coastal Disasters
17
Latest Disaster
Severe Storms, Straight-line Winds, And Flooding (2022-04-22)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Polk County

DeclarationTypeDate
Severe Storms, Straight-line Winds, And FloodingFloodApr 22, 2022
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Severe Winter Storm, Straight-line Winds, And FloodingFloodMar 12, 2019
Severe Storms, Tornadoes, Straight-line Winds, And FloodingFloodJun 15, 2018
Severe Storms And FloodingFloodMar 16, 2011
Severe Storms, Tornadoes, And FloodingTornadoJun 17, 2010
FloodingFloodMar 1, 2010
Severe Storms And FloodingSevere StormMar 16, 2009
FloodingFloodMar 30, 2006

Recorded Flood Events in Polk County

NOAA Storm Events Database (1996–2025)

Total Flood Events
62
River/Area Floods
24
Flash Floods
38
Total Property Damage
$603.7M

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Polk County

TypeDateDamage
FloodAug 29, 20240.50K
Flash FloodAug 29, 20240.50K
FloodMay 25, 20240.50K
Flash FloodJun 18, 20241.00K
FloodApr 22, 20230.00K
FloodApr 18, 20230.00K
FloodApr 14, 20230.00K
Flash FloodApr 23, 20220.00K
FloodApr 8, 201950.00K
Flash FloodMay 30, 20165.00K

Polk County Flood History

Flood — Aug 29, 2024

An 850mb jet aided in the development of thunderstorm clusters in the morning hours of August 29th. Wind was the main threat, with some reports of flash flooding from heavy rainfall.

Flash Flood — Aug 29, 2024

An 850mb jet aided in the development of thunderstorm clusters in the morning hours of August 29th. Wind was the main threat, with some reports of flash flooding from heavy rainfall.

Flood — May 25, 2024

Heavy Rain brought on river flooding in late May of 2024 in Minnesota.

Flash Flood — Jun 18, 2024

Widespread thunderstorms affected eastern ND and northwestern MN in the early morning hours of June 18th.

Flood — Apr 22, 2023

Snowmelt flooding along the Minnesota Tributaries began in mid-April, with a few locations persisting into early May.

Source: NOAA National Weather Service Storm Events Database.

Polk County NFIP Flood Insurance Claims

Total Claims Filed
1,208
Total Paid Out
$30.9M
Avg Claim
$28,609
Avg Water Depth
27.0 ft

Claims by Flood Zone

A Zones (High Risk)
758
X Shaded (500-yr)
242
X Unshaded (Low)
53

Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).

Flood Zone Types in Polk County

FEMA assigns flood zone designations to areas in Polk County, Minnesota:

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.

View all flood zone types →

Flood Insurance in Polk County

Properties in Polk County, Minnesota 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.