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A

Lyon, MN

Flood Risk Score: 12/100 · Rank #1061 of 3,277 counties

Lyon County in Minnesota has 8 FEMA disaster declarations on record covering 1969–2019, most recently Severe Winter Storm, Straight-Line Winds, and Flooding on Jun 12, 2019 (DR-4442). Its flood risk grade is A (Low risk), ranking #1061 of 3,277 U.S. counties, with 0 NFIP flood insurance claims totaling $0 in payouts. Flood risk is relatively low compared to the national average.

12
Risk Score
0
NFIP Claims
$0
Total Payouts
8
Disasters
$0
Avg Claim
0
Active Policies

FEMA Disaster Declarations in Lyon County

The 8 most recent federally declared disasters affecting Lyon County, MN (1969–2019). Total declarations on record: 8.

DeclaredIncident TypeTitleFEMA Disaster #
Jun 12, 2019FloodSevere Winter Storm, Straight-Line Winds, and FloodingDR-4442
Sep 5, 2018FloodSevere Storms, Tornadoes, Straight-Line Winds, and FloodingDR-4390
Jul 21, 2014FloodSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesDR-4182
May 10, 2011FloodSevere Storms and FloodingDR-1982
Mar 19, 2010FloodFloodingDR-3310
Sep 13, 2005HurricaneHurricane Katrina EvacuationDR-3242
Apr 8, 1997FloodSevere Flooding, High Winds,severe StormsDR-1175
Apr 18, 1969FloodFloodingDR-255

Score Breakdown

The composite score of 12 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
17
Claim Severity
20%
0
Year-over-Year Trend
15%
50

Other Counties in Minnesota

CountyGradeScoreClaimsDisasters
KoochichingA1248
MahnomenA1209
FreebornA1239
GoodhueA1279
GrantA1209
JacksonA1208
View All Counties in Minnesota

Frequently Asked Questions

How many FEMA disaster declarations does Lyon County, MN have?

Lyon County, MN has 8 federal disaster declarations on FEMA record (1969–2019). The 5 most recent are: Severe Winter Storm, Straight-Line Winds, and Flooding (declared Jun 12, 2019, DR-4442); Severe Storms, Tornadoes, Straight-Line Winds, and Flooding (declared Sep 5, 2018, DR-4390); Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (declared Jul 21, 2014, DR-4182); Severe Storms and Flooding (declared May 10, 2011, DR-1982); Flooding (declared Mar 19, 2010, DR-3310). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Lyon County, MN?

Lyon County is graded A (composite score 12/100, low risk). It ranks #1061 of 3,277 U.S. counties for flood risk in our scoring model. The grade combines NFIP claims density (40%), disaster frequency (25%), claim severity (20%), and year-over-year trend (15%).

How many NFIP flood insurance claims have been filed in Lyon County?

0 NFIP flood insurance claims have been filed in Lyon County, MN, totaling $0 in payouts. The average claim is $0. Source: FEMA FimaNfipClaims v2 dataset.

Has Lyon County, MN had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Lyon County was Severe Winter Storm, Straight-Line Winds, and Flooding on Jun 12, 2019 (DR-4442). The county has 8 declared disasters in the OpenFEMA record covering 1969–2019.

The this entity record above pulls directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. What follows is the per-entity context — how this entity sits in the broader U.S. flood risk, NFIP claims, and disaster declarations distribution and which underlying factors drive the headline numbers.

The methodology behind every numeric value on this page is publicly documented on the FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.

For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.

Source: FEMA OpenFEMA datasets, 2026.