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/AL/LARGEST-POPULATION

ZIP Codes With the Largest Population in Alabama

What this measures. Population of the Census tabulation area, ACS 5-year estimate. Source: Census American Community Survey, data release 2026-10-12.

# ZIP City County Population
1 35242 Birmingham Shelby 57,374
2 36117 Montgomery Montgomery 53,172
3 36695 Mobile Mobile 52,690
4 35758 Madison Madison 50,266
5 35405 Tuscaloosa Tuscaloosa 49,420
6 36830 Auburn Lee 49,292
7 36116 Montgomery Montgomery 45,250
8 35215 Birmingham Jefferson 43,903
9 35401 Tuscaloosa Tuscaloosa 43,459
10 36535 Foley Baldwin 40,628
11 36330 Enterprise Coffee 39,557
12 36301 Dothan Houston 39,452
13 36608 Mobile Mobile 38,890
14 35226 Birmingham Jefferson 38,588
15 35244 Birmingham Shelby 38,217
16 36532 Fairhope Baldwin 38,108
17 36526 Daphne Baldwin 36,484
18 35601 Decatur Morgan 35,449
19 35216 Birmingham Jefferson 34,327
20 35630 Florence Lauderdale 34,028
21 35810 Huntsville Madison 32,843
22 35209 Birmingham Jefferson 32,734
23 35603 Decatur Morgan 32,179
24 35173 Trussville Jefferson 31,603
25 35811 Huntsville Madison 31,008
26 36832 Auburn Lee 30,959
27 35749 Harvest Madison 30,710
28 36303 Dothan Houston 30,173
29 35611 Athens Limestone 29,969
30 35803 Huntsville Madison 29,197
31 35806 Huntsville Madison 29,161
32 35007 Alabaster Shelby 28,586
33 36067 Prattville Autauga 28,293
34 35640 Hartselle Morgan 27,344
35 35160 Talladega Talladega 26,031
36 35023 Bessemer Jefferson 25,533
37 35613 Athens Limestone 25,523
38 36801 Opelika Lee 25,438
39 35124 Pelham Shelby 25,238
40 36605 Mobile Mobile 25,104
41 35756 Madison Limestone 24,947
42 35211 Birmingham Jefferson 24,924
43 35020 Bessemer Jefferson 24,892
44 35802 Huntsville Madison 23,858
45 36609 Mobile Mobile 23,820
46 36582 Theodore Mobile 23,705
47 36109 Montgomery Montgomery 23,581
48 36575 Semmes Mobile 23,481
49 35801 Huntsville Madison 23,357
50 35022 Bessemer Jefferson 23,126

Showing the top 50 of 656 ZIP codes in Alabama that have this figure . 35242 ranks 1st at 57,374, against 23,126 in 50th place.

Other rankings for Alabama

Cite this page

zipcodes.pro. “ZIP Codes With the Largest Population in Alabama.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/al/largest-population

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