Home / States / South Dakota / Bon Homme
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Bon Homme, SD

Flood Risk Score: 11/100 · Rank #1688 of 3,277 counties

Bon Homme County in South Dakota has 6 FEMA disaster declarations on record covering 1984–2024, most recently Severe Storms, Straight-Line Winds, and Flooding on Aug 15, 2024 (DR-4807). Its flood risk grade is A (Low risk), ranking #1688 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.

11
Risk Score
0
NFIP Claims
$0
Total Payouts
6
Disasters
$0
Avg Claim
0
Active Policies

FEMA Disaster Declarations in Bon Homme County

The 6 most recent federally declared disasters affecting Bon Homme County, SD (1984–2024). Total declarations on record: 6.

DeclaredIncident TypeTitleFEMA Disaster #
Aug 15, 2024FloodSevere Storms, Straight-Line Winds, and FloodingDR-4807
Jun 7, 2019FloodSevere Winter Storm, Snowstorm, and FloodingDR-4440
Sep 10, 2005Coastal StormHurricane Katrina EvacuationDR-3234
Apr 7, 1997FloodSevere Flooding, Sever Winter Storms,heavy Rains High WindsDR-1173
May 26, 1995FloodFloodingDR-1052
Jul 19, 1984FloodSevere Storms & FloodingDR-717

Score Breakdown

The composite score of 11 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
13
Claim Severity
20%
0
Year-over-Year Trend
15%
50

Other Counties in South Dakota

CountyGradeScoreClaimsDisasters
PotterA1107
JacksonA1106
MeadeA1117
PenningtonA1197
WalworthA1106
DavisonA1126
View All Counties in South Dakota

Frequently Asked Questions

How many FEMA disaster declarations does Bon Homme County, SD have?

Bon Homme County, SD has 6 federal disaster declarations on FEMA record (1984–2024). The 5 most recent are: Severe Storms, Straight-Line Winds, and Flooding (declared Aug 15, 2024, DR-4807); Severe Winter Storm, Snowstorm, and Flooding (declared Jun 7, 2019, DR-4440); Hurricane Katrina Evacuation (declared Sep 10, 2005, DR-3234); Severe Flooding, Sever Winter Storms,heavy Rains High Winds (declared Apr 7, 1997, DR-1173); Flooding (declared May 26, 1995, DR-1052). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Bon Homme County, SD?

Bon Homme County is graded A (composite score 11/100, low risk). It ranks #1688 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 Bon Homme County?

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

Has Bon Homme County, SD had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Bon Homme County was Severe Storms, Straight-Line Winds, and Flooding on Aug 15, 2024 (DR-4807). The county has 6 declared disasters in the OpenFEMA record covering 1984–2024.

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.

Every number on this page links back to FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.

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.