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/OLDEST

ZIP Codes With the Oldest Population in Puerto Rico

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 00694 Vega Baja Vega Baja 76.5
2 00786 La Plata Aibonito 61.7
3 00968 Guaynabo Guaynabo 60.2
4 00611 Angeles Utuado 55.9
5 00715 Mercedita Ponce 54.7
6 00907 San Juan San Juan 54.2
7 00979 Carolina Carolina 53.6
8 00971 Guaynabo Guaynabo 52.4
9 00927 San Juan San Juan 51.8
10 00952 Sabana Seca Toa Baja 50.9
11 00917 San Juan San Juan 50.6
12 00901 San Juan San Juan 50.5
13 00660 Hormigueros Hormigueros 50.1
14 00677 Rincon Rincón 50.0
15 00911 San Juan San Juan 49.8
16 00723 Patillas Patillas 49.6
17 00616 Bajadero Arecibo 49.0
18 00667 Lajas Lajas 48.9
19 00985 Carolina Carolina 48.9
20 00707 Maunabo Maunabo 48.7
21 00683 San German San Germán 48.3
22 00730 Ponce Ponce 48.3
23 00912 San Juan San Juan 48.2
24 00622 Boqueron Cabo Rojo 48.1
25 00631 Castaner Adjuntas 48.0
26 00606 Maricao Maricao 47.9
27 00791 Humacao Humacao 47.9
28 00705 Aibonito Aibonito 47.6
29 00731 Ponce Ponce 47.5
30 00735 Ceiba Ceiba 47.1
31 00767 Yabucoa Yabucoa 46.9
32 00623 Cabo Rojo Cabo Rojo 46.8
33 00698 Yauco Yauco 46.8
34 00961 Bayamon Bayamón 46.7
35 00602 Aguada Aguada 46.6
36 00638 Ciales Ciales 46.6
37 00641 Utuado Utuado 46.5
38 00741 Punta Santiago Humacao 46.5
39 00765 Vieques Vieques 46.5
40 00685 San Sebastian San Sebastián 46.3
41 00769 Coamo Coamo 46.2
42 00920 San Juan San Juan 46.2
43 00603 Aguadilla Aguadilla 46.1
44 00653 Guanica Guánica 46.1
45 00926 San Juan San Juan 45.9
46 00969 Guaynabo Guaynabo 45.9
47 00627 Camuy Camuy 45.8
48 00659 Hatillo Hatillo 45.8
49 00678 Quebradillas Quebradillas 45.8
50 00680 Mayaguez Mayagüez 45.8

Showing the top 50 of 131 ZIP codes in Puerto Rico that have this figure . 00694 ranks 1st at 76.5, against 45.8 in 50th place.

Other rankings for Puerto Rico

Cite this page

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

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