Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — RANKINGS/SD/SMALLEST-AREA

Smallest ZIP Codes in South Dakota by Land Area

What this measures. Land area of the Census tabulation area, smallest first. These are almost always dense urban ZIP codes covering a few city blocks. Source: Census Gazetteer, data release 2026-10-12.

# ZIP City County Land area
1 57197 Sioux Falls Minnehaha 0.08 sq mi
2 57117 Sioux Falls Minnehaha 0.09 sq mi
3 57741 Fort Meade Meade 0.16 sq mi
4 57799 Spearfish Lawrence 0.19 sq mi
5 57245 Kranzburg Codington 0.25 sq mi
6 57346 Stephan Hyde 0.28 sq mi
7 57007 Brookings Brookings 0.33 sq mi
8 57061 Sinai Brookings 0.37 sq mi
9 57439 Ferney Brown 0.40 sq mi
10 57358 Lane Jerauld 0.97 sq mi
11 57364 New Holland Douglas 1.08 sq mi
12 57354 Kaylor Hutchinson 1.17 sq mi
13 57639 Little Eagle Corson 1.98 sq mi
14 57361 Marty Charles Mix 2.48 sq mi
15 57621 Bullhead Corson 3.07 sq mi
16 57041 Lyons Minnehaha 3.15 sq mi
17 57367 Pickstown Charles Mix 4.75 sq mi
18 57214 Badger Kingsbury 5.58 sq mi
19 57773 Pringle Custer 5.99 sq mi
20 57426 Barnard Brown 6.00 sq mi
21 57706 Ellsworth Afb Meade 6.14 sq mi
22 57105 Sioux Falls Minnehaha 7.52 sq mi
23 57103 Sioux Falls Minnehaha 9.47 sq mi
24 57027 Fairview Lincoln 9.49 sq mi
25 57571 Saint Charles Gregory 10.51 sq mi
26 57659 Walker Corson 13.51 sq mi
27 57429 Brentford Spink 14.07 sq mi
28 57049 North Sioux City Union 14.17 sq mi
29 57047 Monroe McCook 14.78 sq mi
30 57055 Renner Minnehaha 16.86 sq mi
31 57020 Crooks Minnehaha 17.84 sq mi
32 57636 Lantry Dewey 20.57 sq mi
33 57110 Sioux Falls Minnehaha 20.89 sq mi
34 57064 Tea Lincoln 25.61 sq mi
35 57016 Chester Lake 26.49 sq mi
36 57718 Black Hawk Meade 26.58 sq mi
37 57661 Whitehorse Dewey 28.09 sq mi
38 57024 Egan Moody 29.16 sq mi
39 57563 Okreek Todd 29.65 sq mi
40 57021 Davis Turner 30.03 sq mi
41 57106 Sioux Falls Minnehaha 30.27 sq mi
42 57065 Trent Moody 30.33 sq mi
43 57104 Sioux Falls Minnehaha 30.38 sq mi
44 57108 Sioux Falls Lincoln 30.40 sq mi
45 57246 Labolt Grant 30.41 sq mi
46 57057 Rutland Lake 31.72 sq mi
47 57421 Amherst Marshall 33.34 sq mi
48 57344 Harrison Douglas 34.21 sq mi
49 57233 Erwin Kingsbury 36.73 sq mi
50 57031 Gayville Yankton 39.36 sq mi

Showing the top 50 of 375 ZIP codes in South Dakota that have this figure and meet the threshold above. 57197 ranks 1st at 0.08 sq mi, against 39.36 sq mi in 50th place.

Other rankings for South Dakota

Cite this page

zipcodes.pro. “Smallest ZIP Codes in South Dakota by Land Area.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/sd/smallest-area

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