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/ND/LARGEST-POPULATION

ZIP Codes With the Largest Population in North 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 58104 Fargo Cass 49,168
2 58103 Fargo Cass 48,796
3 58201 Grand Forks Grand Forks 42,373
4 58078 West Fargo Cass 40,631
5 58503 Bismarck Burleigh 37,683
6 58801 Williston Williams 34,277
7 58701 Minot Ward 33,086
8 58102 Fargo Cass 32,912
9 58504 Bismarck Burleigh 30,212
10 58601 Dickinson Stark 29,916
11 58554 Mandan Morton 29,479
12 58501 Bismarck Burleigh 29,405
13 58703 Minot Ward 22,139
14 58401 Jamestown Stutsman 17,189
15 58203 Grand Forks Grand Forks 16,478
16 58301 Devils Lake Ramsey 10,100
17 58854 Watford City McKenzie 9,368
18 58075 Wahpeton Richland 9,046
19 58072 Valley City Barnes 7,863
20 58316 Belcourt Rolette 5,865
21 58047 Horace Cass 5,636
22 58237 Grafton Walsh 4,994
23 58704 Minot Afb Ward 4,616
24 58763 New Town Mountrail 4,426
25 58318 Bottineau Bottineau 3,792
26 58368 Rugby Pierce 3,415
27 58054 Lisbon Ransom 3,400
28 58545 Hazen Mercer 3,313
29 58523 Beulah Mercer 3,280
30 58012 Casselton Cass 3,049
31 58421 Carrington Foster 2,969
32 58202 Grand Forks Grand Forks 2,865
33 58105 Fargo Cass 2,825
34 58329 Dunseith Rolette 2,769
35 58784 Stanley Mountrail 2,756
36 58474 Oakes Dickey 2,656
37 58540 Garrison McLean 2,634
38 58341 Harvey Wells 2,572
39 58220 Cavalier Pembina 2,268
40 58045 Hillsboro Traill 2,239
41 58249 Langdon Cavalier 2,217
42 58257 Mayville Traill 2,180
43 58538 Fort Yates Sioux 2,171
44 58278 Thompson Grand Forks 2,168
45 58852 Tioga Williams 2,087
46 58251 Larimore Grand Forks 2,016
47 58051 Kindred Cass 1,980
48 58563 New Salem Morton 1,961
49 58577 Washburn McLean 1,954
50 58623 Bowman Bowman 1,953

Showing the top 50 of 388 ZIP codes in North Dakota that have this figure . 58104 ranks 1st at 49,168, against 1,953 in 50th place.

Other rankings for North Dakota

Cite this page

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

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