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/LARGEST-POPULATION

ZIP Codes With the Largest Population in South Dakota

What this measures. Population of the Census tabulation area, ACS 5-year estimate. Source: Census American Community Survey, data release 2026-10-12.

# ZIP City County Population
1 57106 Sioux Falls Minnehaha 51,907
2 57701 Rapid City Pennington 45,795
3 57702 Rapid City Pennington 35,595
4 57103 Sioux Falls Minnehaha 35,582
5 57108 Sioux Falls Lincoln 33,966
6 57401 Aberdeen Brown 31,939
7 57104 Sioux Falls Minnehaha 26,963
8 57201 Watertown Codington 26,781
9 57006 Brookings Brookings 24,192
10 57110 Sioux Falls Minnehaha 23,313
11 57105 Sioux Falls Minnehaha 23,287
12 57078 Yankton Yankton 20,383
13 57301 Mitchell Davison 19,104
14 57703 Rapid City Pennington 18,013
15 57501 Pierre Hughes 17,326
16 57783 Spearfish Lawrence 17,248
17 57350 Huron Beadle 16,199
18 57069 Vermillion Clay 13,091
19 57107 Sioux Falls Minnehaha 12,605
20 57005 Brandon Minnehaha 12,290
21 57719 Box Elder Meade 12,221
22 57785 Sturgis Meade 10,874
23 57032 Harrisburg Lincoln 10,467
24 57717 Belle Fourche Butte 8,983
25 57064 Tea Lincoln 8,032
26 57049 North Sioux City Union 7,962
27 57718 Black Hawk Meade 7,937
28 57042 Madison Lake 7,756
29 57747 Hot Springs Fall River 5,839
30 57730 Custer Custer 5,596
31 57033 Hartford Minnehaha 5,576
32 57770 Pine Ridge Oglala Lakota 5,483
33 57022 Dell Rapids Minnehaha 5,339
34 57262 Sisseton Roberts 5,100
35 57252 Milbank Grant 4,883
36 57013 Canton Lincoln 4,504
37 57580 Winner Tripp 4,386
38 57769 Piedmont Meade 4,029
39 57004 Beresford Lincoln 3,834
40 57625 Eagle Butte Dewey 3,775
41 57754 Lead Lawrence 3,749
42 57555 Mission Todd 3,740
43 57039 Lennox Lincoln 3,622
44 57028 Flandreau Moody 3,450
45 57601 Mobridge Dewey 3,422
46 57325 Chamberlain Brule 3,335
47 57380 Wagner Charles Mix 3,316
48 57071 Volga Brookings 3,149
49 57025 Elk Point Union 3,120
50 57532 Fort Pierre Stanley 2,929

Showing the top 50 of 375 ZIP codes in South Dakota that have this figure . 57106 ranks 1st at 51,907, against 2,929 in 50th place.

Other rankings for South Dakota

Cite this page

zipcodes.pro. “ZIP Codes With the Largest Population in South Dakota.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/sd/largest-population

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