2026 Rankings

ZIP Codes with Highest Flood Risk in South Dakota — ...

Last updated: August 31, 2026

160 ZIP codes ranked by Historical NFIP Claims #1: ZIP 57201 (Watertown, SD) - 462 claims

Out of 160 ZIP codes with data in South Dakota, these are the highest-ranked areas for historical nfip claims. See also: National ZIP Codes with the Most Historical NFIP Claims | All South Dakota Rankings

Statistic Value
ZIP codes ranked 160
Highest value 462 claims
Median value 5 claims
State South Dakota

Top 100 Worst ZIP Codes

Rank ZIP Code City State Historical NFIP Claims Safety Score
1 57201 Watertown SD 462 claims 65/100
2 57401 Aberdeen SD 425 claims 55/100
3 57049 North Sioux City SD 362 claims
4 57273 Waubay SD 227 claims
5 57042 Madison SD 226 claims
6 57212 Arlington SD 120 claims
7 57532 Fort Pierre SD 118 claims
8 57234 Estelline SD 115 claims
9 57105 Sioux Falls SD 109 claims 67/100
10 57223 Castlewood SD 85 claims
11 57248 Lake Norden SD 83 claims
12 57104 Sioux Falls SD 75 claims 67/100
13 57006 Brookings SD 67 claims
14 57038 Jefferson SD 66 claims
15 57022 Dell Rapids SD 65 claims 66/100
16 57055 Renner SD 64 claims 67/100
17 57501 Pierre SD 63 claims 67/100
18 57078 Yankton SD 48 claims
19 57075 Wentworth SD 45 claims
20 57702 Rapid City SD 43 claims 83/100
21 57106 Sioux Falls SD 40 claims 66/100
22 57216 Big Stone City SD 38 claims
23 57469 Redfield SD 33 claims
24 57103 Sioux Falls SD 32 claims
25 57301 Mitchell SD 32 claims
26 57701 Rapid City SD 32 claims 83/100
27 57065 Trent SD 28 claims
28 57424 Ashton SD 27 claims
29 57719 Box Elder SD 27 claims 78/100
30 57730 Custer SD 27 claims
31 57783 Spearfish SD 26 claims
32 57522 Blunt SD 25 claims 67/100
33 57744 Hermosa SD 25 claims
34 57350 Huron SD 23 claims
35 57048 Montrose SD 21 claims
36 57028 Flandreau SD 19 claims
37 57703 Rapid City SD 19 claims 62/100
38 57220 Bruce SD 18 claims 67/100
39 57274 Webster SD 18 claims
40 57021 Davis SD 17 claims
41 57252 Milbank SD 17 claims
42 57016 Chester SD 16 claims
43 57249 Lake Preston SD 15 claims
44 57025 Elk Point SD 14 claims
45 57445 Groton SD 14 claims 67/100
46 57544 Kennebec SD 14 claims
47 57108 Sioux Falls SD 13 claims
48 57481 Westport SD 13 claims 67/100
49 57717 Belle Fourche SD 13 claims
50 57005 Brandon SD 12 claims 65/100
51 57013 Canton SD 11 claims
52 57046 Mission Hill SD 11 claims
53 57107 Sioux Falls SD 11 claims 67/100
54 57785 Sturgis SD 11 claims 83/100
55 57068 Valley Springs SD 10 claims 66/100
56 57241 Hayti SD 10 claims
57 57260 Rosholt SD 10 claims
58 57279 Wilmot SD 10 claims
59 57732 Deadwood SD 10 claims
60 57769 Piedmont SD 10 claims 83/100
61 57010 Burbank SD 9 claims 67/100
62 57032 Harrisburg SD 9 claims
63 57262 Sisseton SD 9 claims
64 57003 Baltic SD 8 claims 67/100
65 57071 Volga SD 8 claims
66 57441 Frederick SD 8 claims 67/100
67 57745 Hill City SD 8 claims
68 57231 De Smet SD 7 claims
69 57239 Grenville SD 7 claims
70 57314 Artesian SD 7 claims
71 57366 Parkston SD 7 claims
72 57045 Menno SD 6 claims
73 57053 Parker SD 6 claims
74 57200 Brookings County SD 6 claims
75 57227 Corona SD 6 claims
76 57311 Alexandria SD 6 claims
77 57370 Pukwana SD 6 claims
78 57373 Saint Lawrence SD 6 claims
79 57446 Hecla SD 6 claims 67/100
80 57058 Salem SD 5 claims
81 57235 Florence SD 5 claims
82 57363 Mount Vernon SD 5 claims
83 57402 Aberdeen SD 5 claims
84 57430 Britton SD 5 claims
85 57451 Ipswich SD 5 claims
86 57069 Vermillion SD 4 claims 67/100
87 57217 Bradley SD 4 claims
88 57225 Clark SD 4 claims
89 57261 Roslyn SD 4 claims
90 57272 Wallace SD 4 claims
91 57356 Lake Andes SD 4 claims
92 57361 Marty SD 4 claims
93 57385 Woonsocket SD 4 claims
94 57432 Claremont SD 4 claims
95 57433 Columbia SD 4 claims 67/100
96 57461 Mellette SD 4 claims
97 57474 Stratford SD 4 claims 67/100
98 57555 Mission SD 4 claims
99 57564 Onida SD 4 claims
100 57751 Keystone SD 4 claims 67/100

Methodology

This ranking uses historical FEMA National Flood Insurance Program claim records. The entity is not a complete inventory of properties, flood events, uninsured losses, or current FEMA map designations. ZIPs without claim evidence are unknown and are not ranked as zero or low risk.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-08-31.

Frequently Asked Questions

What does this ranking show?

It shows historical NFIP claim counts for ZIP records where FEMA claim evidence is available. It does not determine the current flood zone or risk of a specific property.

Where does the claim data come from?

The records come from FEMA National Flood Insurance Program claims. They do not include a complete inventory of uninsured losses or current property-map designations.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →


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Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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