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/MN/OLDEST

ZIP Codes With the Oldest Population in Minnesota

What this measures. Median age of residents, ACS 5-year estimate. Source: Census American Community Survey, data release 2026-10-12.

# ZIP City County Median age
1 55609 Knife River Lake 87.7
2 56720 Donaldson Kittson 74.6
3 56541 Flom Norman 74.3
4 56685 Waskish Beltrami 67.7
5 55725 Crane Lake St. Louis 66.3
6 56627 Big Falls Koochiching 65.8
7 56660 Mizpah Koochiching 65.6
8 56724 Gatzke Marshall 65.3
9 56688 Wirt Itasca 65.0
10 56448 Fifty Lakes Crow Wing 64.2
11 56576 Richville Otter Tail 64.2
12 56657 Marcell Itasca 64.1
13 56655 Longville Cass 64.0
14 56125 Dovray Murray 63.8
15 56210 Barry Big Stone 63.5
16 56662 Outing Cass 63.1
17 55601 Beaver Bay Lake 63.0
18 56452 Hackensack Cass 62.6
19 55796 Winton Lake 62.3
20 55790 Tower St. Louis 61.8
21 56515 Battle Lake Otter Tail 61.8
22 56442 Crosslake Crow Wing 60.9
23 56669 Kabetogama Koochiching 60.9
24 56755 Saint Vincent Kittson 60.7
25 55606 Hovland Cook 60.6
26 55723 Cook St. Louis 60.3
27 55731 Ely Lake 60.3
28 55781 Side Lake Itasca 60.2
29 56450 Garrison Crow Wing 60.0
30 56571 Ottertail Otter Tail 59.5
31 55786 Taconite Itasca 59.3
32 55724 Cotton St. Louis 59.2
33 56469 Palisade Aitkin 59.1
34 56132 Garvin Lyon 58.9
35 55752 Jacobson Aitkin 58.4
36 55785 Swatara Aitkin 58.4
37 56681 Squaw Lake Itasca 58.4
38 56313 Bock Mille Lacs 58.3
39 56628 Bigfork Itasca 58.2
40 55047 Marine On Saint Croix Washington 58.0
41 55602 Brimson St. Louis 58.0
42 55612 Lutsen Cook 58.0
43 55712 Bruno Pine 58.0
44 55968 Reads Landing Wabasha 57.9
45 56328 Flensburg Morrison 57.8
46 56484 Walker Cass 57.6
47 55036 Henriette Pine 57.4
48 56289 Sunburg Kandiyohi 57.3
49 56553 Kent Wilkin 57.3
50 56443 Cushing Morrison 57.2

Showing the top 50 of 877 ZIP codes in Minnesota that have this figure . 55609 ranks 1st at 87.7, against 57.2 in 50th place.

Other rankings for Minnesota

Cite this page

zipcodes.pro. “ZIP Codes With the Oldest Population in Minnesota.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/mn/oldest

Underlying data is public domain or openly licensed — sources, vintages and licences.