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/HIGHEST-DENSITY

Most Densely Populated ZIP Codes in North Dakota

What this measures. People per square mile of land area. Source: Census American Community Survey and Gazetteer, data release 2026-10-12.

# ZIP City County People per sq mi
1 58105 Fargo Cass 11,870
2 58202 Grand Forks Grand Forks 6,632
3 58076 Wahpeton Richland 5,931
4 58707 Minot Ward 4,386
5 58405 Jamestown Stutsman 4,352
6 58103 Fargo Cass 4,260
7 58402 Jamestown Stutsman 2,220
8 58104 Fargo Cass 1,753
9 58204 Grand Forks Afb Grand Forks 1,505
10 58501 Bismarck Burleigh 1,289
11 58102 Fargo Cass 1,040
12 58078 West Fargo Cass 1,020
13 58704 Minot Afb Ward 976
14 58201 Grand Forks Grand Forks 614
15 58504 Bismarck Burleigh 292
16 58503 Bismarck Burleigh 278
17 58203 Grand Forks Grand Forks 240
18 58313 Balta Pierce 217
19 58001 Abercrombie Richland 164
20 58703 Minot Ward 142
21 58701 Minot Ward 141
22 58565 Riverdale McLean 116
23 58705 Minot Afb Ward 104
24 58505 Bismarck Burleigh 103
25 58047 Horace Cass 80
26 58074 Wahpeton Richland 67
27 58316 Belcourt Rolette 58
28 58601 Dickinson Stark 52
29 58554 Mandan Morton 52
30 58801 Williston Williams 48
31 58785 Surrey Ward 45
32 58335 Fort Totten Benson 42
33 58012 Casselton Cass 42
34 58401 Jamestown Stutsman 40
35 58075 Wahpeton Richland 39
36 58301 Devils Lake Ramsey 37
37 58379 Tokio Benson 37
38 58042 Harwood Cass 31
39 58219 Caledonia Traill 30
40 58205 Grand Forks Afb Grand Forks 24
41 58072 Valley City Barnes 24
42 58853 Trenton Williams 24
43 58370 Saint Michael Benson 21
44 58722 Burlington Ward 21
45 58278 Thompson Grand Forks 21
46 58237 Grafton Walsh 20
47 58051 Kindred Cass 18
48 58257 Mayville Traill 18
49 58452 Jessie Griggs 17
50 58015 Christine Richland 16

Showing the top 50 of 388 ZIP codes in North Dakota that have this figure . 58105 ranks 1st at 11,870, against 16 in 50th place.

Other rankings for North Dakota

Cite this page

zipcodes.pro. “Most Densely Populated ZIP Codes in North Dakota.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/nd/highest-density

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