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/UT/YOUNGEST

ZIP Codes With the Youngest Population in Utah

What this measures. Median age of residents, lowest first. Source: Census American Community Survey, data release 2026-10-12.

# ZIP City County Median age
1 84018 Croydon Morgan 8.1
2 84623 Chester Sanpete 15.4
3 84334 Riverside Box Elder 16.4
4 84729 Glendale Kane 17.4
5 84602 Provo Utah 19.1
6 84113 Salt Lake City Salt Lake 19.3
7 84744 Koosharem Sevier 19.4
8 84408 Ogden Weber 19.5
9 84529 Kenilworth Carbon 19.5
10 84522 Emery Emery 19.7
11 84112 Salt Lake City Salt Lake 19.9
12 84306 Collinston Box Elder 21.8
13 84056 Hill Afb Davis 22.4
14 84627 Ephraim Sanpete 22.4
15 84645 Mona Juab 22.4
16 84005 Eagle Mountain Utah 23.1
17 84606 Provo Utah 23.1
18 84604 Provo Utah 23.4
19 84329 Park Valley Box Elder 23.6
20 84045 Saratoga Springs Utah 23.7
21 84321 Logan Cache 23.9
22 84630 Fayette Sanpete 24.4
23 84058 Orem Utah 25.0
24 84059 Orem Utah 25.4
25 84341 Logan Cache 25.5
26 84601 Provo Utah 25.9
27 84764 Bryce Garfield 26.2
28 84531 Mexican Hat San Juan 26.3
29 84784 Hildale Washington 26.3
30 84043 Lehi Utah 26.9
31 84657 Sigurd Sevier 27.2
32 84001 Altamont Duchesne 27.6
33 84083 Wendover Tooele 27.6
34 84626 Elberta Utah 27.6
35 84062 Pleasant Grove Utah 27.8
36 84655 Santaquin Utah 27.8
37 84022 Dugway Tooele 27.9
38 84003 American Fork Utah 28.0
39 84635 Hinckley Millard 28.0
40 84660 Spanish Fork Utah 28.3
41 84057 Orem Utah 28.4
42 84309 Deweyville Box Elder 28.5
43 84319 Hyrum Cache 28.7
44 84335 Smithfield Cache 28.7
45 84663 Springville Utah 28.7
46 84075 Syracuse Davis 28.8
47 84721 Cedar City Iron 28.8
48 84072 Tabiona Duchesne 28.9
49 84723 Circleville Piute 28.9
50 84097 Orem Utah 29.3

Showing the top 50 of 287 ZIP codes in Utah that have this figure . 84018 ranks 1st at 8.1, against 29.3 in 50th place.

Other rankings for Utah

Cite this page

zipcodes.pro. “ZIP Codes With the Youngest Population in Utah.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/ut/youngest

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