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/HIGHEST-DENSITY

Most Densely Populated ZIP Codes in Utah

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 84602 Provo Utah 13,296
2 84102 Salt Lake City Salt Lake 9,724
3 84111 Salt Lake City Salt Lake 9,399
4 84105 Salt Lake City Salt Lake 7,637
5 84057 Orem Utah 5,983
6 84047 Midvale Salt Lake 5,864
7 84106 Salt Lake City Salt Lake 5,832
8 84129 Salt Lake City Salt Lake 5,614
9 84094 Sandy Salt Lake 5,411
10 84101 Salt Lake City Salt Lake 5,087
11 84107 Salt Lake City Salt Lake 5,072
12 84120 West Valley City Salt Lake 5,031
13 84115 Salt Lake City Salt Lake 4,756
14 84084 West Jordan Salt Lake 4,750
15 84067 Roy Weber 4,730
16 84123 Salt Lake City Salt Lake 4,480
17 84117 Salt Lake City Salt Lake 4,448
18 84058 Orem Utah 4,367
19 84119 West Valley City Salt Lake 4,349
20 84093 Sandy Salt Lake 4,332
21 84088 West Jordan Salt Lake 4,187
22 84070 Sandy Salt Lake 4,152
23 84009 South Jordan Salt Lake 4,131
24 84128 West Valley City Salt Lake 3,834
25 84041 Layton Davis 3,696
26 84097 Orem Utah 3,684
27 84015 Clearfield Davis 3,448
28 84081 West Jordan Salt Lake 3,381
29 84095 South Jordan Salt Lake 3,339
30 84059 Orem Utah 3,306
31 84118 Salt Lake City Salt Lake 3,300
32 84112 Salt Lake City Salt Lake 3,210
33 84606 Provo Utah 3,083
34 84124 Salt Lake City Salt Lake 2,931
35 84043 Lehi Utah 2,836
36 84054 North Salt Lake Davis 2,612
37 84065 Riverton Salt Lake 2,460
38 84601 Provo Utah 2,430
39 84341 Logan Cache 2,393
40 84332 Providence Cache 2,240
41 84405 Ogden Weber 1,885
42 84020 Draper Salt Lake 1,851
43 84025 Farmington Davis 1,786
44 84414 Ogden Weber 1,581
45 84401 Ogden Weber 1,575
46 84042 Lindon Utah 1,478
47 84005 Eagle Mountain Utah 1,439
48 84113 Salt Lake City Salt Lake 1,368
49 84664 Mapleton Utah 1,303
50 84014 Centerville Davis 1,297

Showing the top 50 of 298 ZIP codes in Utah that have this figure . 84602 ranks 1st at 13,296, against 1,297 in 50th place.

Other rankings for Utah

Cite this page

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

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