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-AVERAGE-INCOME

ZIP Codes With the Highest Average Income in North Dakota

What this measures. Total adjusted gross income divided by the number of tax returns filed. This is income per RETURN, not per person or per household — a return can be a single filer or a married couple. Source: IRS Statistics of Income, ZIP code data, data release 2026-10-12.

# ZIP City County Average AGI per return
1 58640 Killdeer Dunn $203,735
2 58854 Watford City McKenzie $148,996
3 58047 Horace Cass $148,294
4 58835 Arnegard McKenzie $139,241
5 58051 Kindred Cass $138,248
6 58005 Argusville Cass $131,164
7 58079 Wheatland Cass $129,762
8 58831 Alexander McKenzie $128,691
9 58441 Fullerton Dickey $125,826
10 58784 Stanley Mountrail $125,194
11 58849 Ray Williams $122,827
12 58852 Tioga Williams $122,467
13 58843 Epping Williams $120,715
14 58763 New Town Mountrail $118,018
15 58503 Bismarck Burleigh $117,948
16 58278 Thompson Grand Forks $116,966
17 58018 Colfax Richland $116,865
18 58531 Coleharbor McLean $116,695
19 58042 Harwood Cass $114,945
20 58061 Mooreton Richland $114,560
21 58793 Westhope Bottineau $114,488
22 58271 Pembina Pembina $114,027
23 58046 Hope Steele $113,844
24 58243 Hoople Walsh $113,292
25 58006 Arthur Cass $112,076
26 58771 Plaza Mountrail $110,573
27 58773 Powers Lake Burke $110,430
28 58077 Walcott Richland $109,807
29 58012 Casselton Cass $108,490
30 58249 Langdon Cavalier $108,084
31 58078 West Fargo Cass $107,542
32 58344 Lakota Nelson $106,666
33 58059 Mapleton Cass $105,422
34 58064 Page Cass $105,300
35 58646 Mott Hettinger $103,796
36 58801 Williston Williams $102,600
37 58104 Fargo Cass $102,477
38 58645 Medora Billings $102,262
39 58577 Washburn McLean $102,206
40 58770 Parshall Mountrail $101,179
41 58275 Reynolds Grand Forks $100,705
42 58630 Gladstone Stark $100,455
43 58218 Buxton Traill $100,376
44 58521 Baldwin Burleigh $100,375
45 58523 Beulah Mercer $99,653
46 58558 Menoken Burleigh $99,372
47 58011 Buffalo Cass $98,968
48 58021 Davenport Cass $98,827
49 58721 Bowbells Burke $97,727
50 58225 Drayton Pembina $97,548

Showing the top 50 of 176 ZIP codes in North Dakota that have this figure and meet the threshold above. 58640 ranks 1st at $203,735, against $97,548 in 50th place.

Other rankings for North Dakota

Cite this page

zipcodes.pro. “ZIP Codes With the Highest Average Income in North Dakota.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/nd/highest-average-income

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