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/PR/YOUNGEST

ZIP Codes With the Youngest Population in Puerto Rico

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 00913 San Juan San Juan 31.5
2 00690 San Antonio Aguadilla 35.4
3 00934 Fort Buchanan Guaynabo 35.4
4 00960 Bayamon Bayamón 38.0
5 00682 Mayaguez Mayagüez 38.5
6 00704 Aguirre Salinas 39.3
7 00652 Garrochales Arecibo 39.6
8 00718 Naguabo Naguabo 40.0
9 00636 Rosario San Germán 40.4
10 00794 Barranquitas Barranquitas 40.4
11 00728 Ponce Ponce 40.8
12 00982 Carolina Carolina 40.8
13 00784 Guayama Guayama 41.2
14 00624 Penuelas Peñuelas 41.4
15 00757 Santa Isabel Santa Isabel 41.5
16 00953 Toa Alta Toa Alta 41.7
17 00965 Guaynabo Guaynabo 41.7
18 00924 San Juan San Juan 41.8
19 00966 Guaynabo Guaynabo 41.8
20 00780 Coto Laurel Ponce 41.9
21 00951 Toa Baja Toa Baja 41.9
22 00650 Florida Florida 42.0
23 00692 Vega Alta Vega Alta 42.0
24 00777 Juncos Juncos 42.0
25 00782 Comerio Comerío 42.0
26 00921 San Juan San Juan 42.1
27 00778 Gurabo Gurabo 42.3
28 00720 Orocovis Orocovis 42.5
29 00987 Carolina Carolina 42.6
30 00646 Dorado Dorado 42.9
31 00740 Puerto Real Fajardo 42.9
32 00795 Juana Diaz Juana Díaz 42.9
33 00771 Las Piedras Las Piedras 43.0
34 00617 Barceloneta Barceloneta 43.1
35 00687 Morovis Morovis 43.1
36 00783 Corozal Corozal 43.1
37 00664 Jayuya Jayuya 43.2
38 00949 Toa Baja Toa Baja 43.2
39 00676 Moca Moca 43.3
40 00714 Arroyo Arroyo 43.4
41 00729 Canovanas Canóvanas 43.4
42 00962 Catano Cataño 43.4
43 00739 Cidra Cidra 43.5
44 00923 San Juan San Juan 43.5
45 00772 Loiza Loíza 43.6
46 00716 Ponce Ponce 43.7
47 00956 Bayamon Bayamón 43.7
48 00957 Bayamon Bayamón 43.7
49 00909 San Juan San Juan 43.8
50 00719 Naranjito Naranjito 43.9

Showing the top 50 of 131 ZIP codes in Puerto Rico that have this figure . 00913 ranks 1st at 31.5, against 43.9 in 50th place.

Other rankings for Puerto Rico

Cite this page

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

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