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-AREA

Largest ZIP Codes in North Dakota by Land Area

What this measures. Land area of the Census tabulation area, in square miles. Water is excluded. Source: Census Gazetteer, data release 2026-10-12.

# ZIP City County Land area
1 58651 Rhame Bowman 716.33 sq mi
2 58801 Williston Williams 716.09 sq mi
3 58854 Watford City McKenzie 666.12 sq mi
4 58368 Rugby Pierce 636.64 sq mi
5 58654 Sentinel Butte Golden Valley 628.88 sq mi
6 58646 Mott Hettinger 574.04 sq mi
7 58554 Mandan Morton 572.60 sq mi
8 58601 Dickinson Stark 570.60 sq mi
9 58639 Hettinger Adams 569.78 sq mi
10 58563 New Salem Morton 566.95 sq mi
11 58623 Bowman Bowman 541.11 sq mi
12 58622 Belfield Billings 533.88 sq mi
13 58763 New Town Mountrail 532.71 sq mi
14 58788 Towner McHenry 517.85 sq mi
15 58647 New England Slope 507.26 sq mi
16 58552 Linton Emmons 502.49 sq mi
17 58413 Ashley McIntosh 492.37 sq mi
18 58645 Medora Billings 485.02 sq mi
19 58746 Kenmare Ward 446.72 sq mi
20 58640 Killdeer Dunn 437.43 sq mi
21 58341 Harvey Wells 433.99 sq mi
22 58249 Langdon Cavalier 431.48 sq mi
23 58401 Jamestown Stutsman 428.71 sq mi
24 58621 Beach Golden Valley 428.62 sq mi
25 58718 Berthold Ward 425.28 sq mi
26 58568 Selfridge Sioux 419.81 sq mi
27 58831 Alexander McKenzie 416.05 sq mi
28 58421 Carrington Foster 401.72 sq mi
29 58636 Halliday Dunn 395.61 sq mi
30 58652 Richardton Stark 395.36 sq mi
31 58529 Carson Grant 393.92 sq mi
32 58384 Willow City Bottineau 389.77 sq mi
33 58474 Oakes Dickey 389.34 sq mi
34 58634 Grassy Butte McKenzie 375.43 sq mi
35 58631 Glen Ullin Morton 370.34 sq mi
36 58463 Mcclusky Sheridan 369.11 sq mi
37 58653 Scranton Bowman 367.47 sq mi
38 58495 Wishek McIntosh 361.73 sq mi
39 58540 Garrison McLean 361.40 sq mi
40 58784 Stanley Mountrail 351.30 sq mi
41 58494 Wing Burleigh 344.20 sq mi
42 58757 Mandaree Dunn 342.33 sq mi
43 58535 Flasher Morton 342.31 sq mi
44 58533 Elgin Grant 341.20 sq mi
45 58570 Solen Morton 339.96 sq mi
46 58530 Center Oliver 338.35 sq mi
47 58561 Napoleon Logan 331.16 sq mi
48 58638 Hebron Morton 328.49 sq mi
49 58072 Valley City Barnes 327.63 sq mi
50 58433 Edgeley LaMoure 322.38 sq mi

Showing the top 50 of 388 ZIP codes in North Dakota that have this figure and meet the threshold above. 58651 ranks 1st at 716.33 sq mi, against 322.38 sq mi in 50th place.

Other rankings for North Dakota

Cite this page

zipcodes.pro. “Largest ZIP Codes in North Dakota by Land Area.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/nd/largest-area

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