Puerto Rico has a total of 131 active zip codes.
| Zip Code | City | County | Population |
|---|---|---|---|
| 00926 | San Juan | San Juan County, PR | 93,330 |
| 00725 | Caguas | Caguas County, PR | 80,537 |
| 00949 | Toa Baja | Toa Baja County, PR | 72,943 |
| 00953 | Toa Alta | Toa Alta County, PR | 71,174 |
| 00956 | Bayamon | Bayamon County, PR | 63,264 |
| 00612 | Arecibo | Arecibo County, PR | 59,369 |
| 00976 | Trujillo Alto | Trujillo Alto County, PR | 58,640 |
| 00987 | Carolina | Carolina County, PR | 54,241 |
| 00693 | Vega Baja | Vega Baja County, PR | 53,360 |
| 00727 | Caguas | Caguas County, PR | 52,743 |
| 00729 | Canovanas | Canovanas County, PR | 51,015 |
| 00745 | Rio Grande | Rio Grande County, PR | 50,435 |
| 00791 | Humacao | Humacao County, PR | 48,433 |
| 00924 | San Juan | San Juan County, PR | 48,141 |
| 00603 | Aguadilla | Aguadilla County, PR | 47,081 |
| 00778 | Gurabo | Gurabo County, PR | 46,707 |
| 00959 | Bayamon | Bayamon County, PR | 46,441 |
| 00736 | Cayey | Cayey County, PR | 46,085 |
| 00680 | Mayaguez | Mayaguez County, PR | 45,190 |
| 00795 | Juana Diaz | Juana Diaz County, PR | 43,873 |
| 00969 | Guaynabo | Guaynabo County, PR | 41,941 |
| 00623 | Cabo Rojo | Cabo Rojo County, PR | 41,746 |
| 00659 | Hatillo | Hatillo County, PR | 39,950 |
| 00784 | Guayama | Guayama County, PR | 39,823 |
| 00662 | Isabela | Isabela County, PR | 39,700 |
| 00777 | Juncos | Juncos County, PR | 39,609 |
| 00728 | Ponce | Ponce County, PR | 39,083 |
| 00674 | Manati | Manati County, PR | 38,971 |
| 00769 | Coamo | Coamo County, PR | 38,812 |
| 00957 | Bayamon | Bayamon County, PR | 38,198 |
| 00602 | Aguada | Aguada County, PR | 37,751 |
| 00646 | Dorado | Dorado County, PR | 37,095 |
| 00685 | San Sebastian | San Sebastian County, PR | 37,058 |
| 00771 | Las Piedras | Las Piedras County, PR | 36,906 |
| 00754 | San Lorenzo | San Lorenzo County, PR | 36,893 |
| 00739 | Cidra | Cidra County, PR | 36,734 |
| 00676 | Moca | Moca County, PR | 36,299 |
| 00698 | Yauco | Yauco County, PR | 35,317 |
| 00692 | Vega Alta | Vega Alta County, PR | 35,135 |
| 00983 | Carolina | Carolina County, PR | 33,947 |
| 00767 | Yabucoa | Yabucoa County, PR | 33,499 |
| 00783 | Corozal | Corozal County, PR | 32,769 |
| 00921 | San Juan | San Juan County, PR | 31,801 |
| 00682 | Mayaguez | Mayaguez County, PR | 31,735 |
| 00985 | Carolina | Carolina County, PR | 31,682 |
| 00627 | Camuy | Camuy County, PR | 31,598 |
| 00687 | Morovis | Morovis County, PR | 30,962 |
| 00730 | Ponce | Ponce County, PR | 30,175 |
| 00961 | Bayamon | Bayamon County, PR | 29,743 |
| 00683 | San German | San German County, PR | 29,487 |
| 00738 | Fajardo | Fajardo County, PR | 29,196 |
| 00719 | Naranjito | Naranjito County, PR | 28,556 |
| 00794 | Barranquitas | Barranquitas County, PR | 28,434 |
| 00716 | Ponce | Ponce County, PR | 27,513 |
| 00641 | Utuado | Utuado County, PR | 26,712 |
| 00610 | Anasco | Anasco County, PR | 26,686 |
| 00703 | Aguas Buenas | Aguas Buenas County, PR | 26,097 |
| 00971 | Guaynabo | Guaynabo County, PR | 25,925 |
| 00678 | Quebradillas | Quebradillas County, PR | 25,624 |
| 00718 | Naguabo | Naguabo County, PR | 25,430 |
| 00915 | San Juan | San Juan County, PR | 24,888 |
| 00669 | Lares | Lares County, PR | 24,803 |
| 00923 | San Juan | San Juan County, PR | 23,851 |
| 00617 | Barceloneta | Barceloneta County, PR | 23,750 |
| 00667 | Lajas | Lajas County, PR | 23,186 |
| 00766 | Villalba | Villalba County, PR | 22,687 |
| 00705 | Aibonito | Aibonito County, PR | 22,662 |
| 00637 | Sabana Grande | Sabana Grande County, PR | 22,383 |
| 00624 | Penuelas | Penuelas County, PR | 21,936 |
| 00757 | Santa Isabel | Santa Isabel County, PR | 21,757 |
| 00720 | Orocovis | Orocovis County, PR | 20,758 |
| 00751 | Salinas | Salinas County, PR | 20,677 |
| 00772 | Loiza | Loiza County, PR | 19,529 |
| 00962 | Catano | Catano County, PR | 19,082 |
| 00656 | Guayanilla | Guayanilla County, PR | 18,485 |
| 00773 | Luquillo | Luquillo County, PR | 18,224 |
| 00917 | San Juan | San Juan County, PR | 18,196 |
| 00714 | Arroyo | Arroyo County, PR | 17,739 |
| 00782 | Comerio | Comerio County, PR | 17,670 |
| 00601 | Adjuntas | Adjuntas County, PR | 17,113 |
| 00723 | Patillas | Patillas County, PR | 16,984 |
| 00638 | Ciales | Ciales County, PR | 16,412 |
| 00920 | San Juan | San Juan County, PR | 16,281 |
| 00979 | Carolina | San Juan County, PR | 16,130 |
| 00717 | Ponce | Ponce County, PR | 16,086 |
| 00660 | Hormigueros | Hormigueros County, PR | 15,943 |
| 00918 | San Juan | San Juan County, PR | 15,759 |
| 00966 | Guaynabo | Guaynabo County, PR | 15,254 |
| 00907 | San Juan | San Juan County, PR | 15,151 |
| 00664 | Jayuya | Jayuya County, PR | 14,693 |
| 00650 | Florida | Florida County, PR | 14,534 |
| 00982 | Carolina | San Juan County, PR | 14,346 |
| 00677 | Rincon | Rincon County, PR | 14,093 |
| 00927 | San Juan | San Juan County, PR | 13,626 |
| 00731 | Ponce | Ponce County, PR | 12,657 |
| 00735 | Ceiba | Ceiba County, PR | 12,159 |
| 00688 | Sabana Hoyos | Arecibo County, PR | 12,139 |
| 00780 | Coto Laurel | Ponce County, PR | 11,016 |
| 00707 | Maunabo | Maunabo County, PR | 10,721 |
| 00653 | Guanica | Guanica County, PR | 10,484 |
| 00616 | Bajadero | Arecibo County, PR | 10,022 |
| 00765 | Vieques | Vieques County, PR | 8,523 |
| 00670 | Las Marias | Las Marias County, PR | 8,364 |
| 00704 | Aguirre | Guayama County, PR | 8,108 |
| 00913 | San Juan | San Juan County, PR | 7,890 |
| 00952 | Sabana Seca | Toa Baja County, PR | 7,598 |
| 00911 | San Juan | San Juan County, PR | 7,089 |
| 00622 | Boqueron | Cabo Rojo County, PR | 6,741 |
| 00965 | Guaynabo | Guaynabo County, PR | 6,709 |
| 00925 | San Juan | San Juan County, PR | 6,640 |
| 00901 | San Juan | San Juan County, PR | 6,617 |
| 00606 | Maricao | Maricao County, PR | 6,392 |
| 00647 | Ensenada | Guanica County, PR | 5,809 |
| 00690 | San Antonio | Aguadilla County, PR | 5,722 |
| 00912 | San Juan | San Juan County, PR | 5,660 |
| 00909 | San Juan | San Juan County, PR | 4,698 |
| 00741 | Punta Santiago | Humacao County, PR | 4,074 |
| 00652 | Garrochales | Arecibo County, PR | 3,565 |
| 00968 | Guaynabo | San Juan County, PR | 3,448 |
| 00715 | Mercedita | Ponce County, PR | 2,818 |
| 00960 | Bayamon | Bayamon County, PR | 2,205 |
| 00740 | Puerto Real | Fajardo County, PR | 1,915 |
| 00631 | Castaner | Lares County, PR | 1,499 |
| 00775 | Culebra | Culebra County, PR | 1,299 |
| 00936 | San Juan | San Juan County, PR | 773 |
| 00786 | La Plata | Aibonito County, PR | 360 |
| 00906 | San Juan | San Juan County, PR | 191 |
| 00934 | Fort Buchanan | Bayamon County, PR | 109 |
| 00694 | Vega Baja | Vega Baja County, PR | 64 |
| 00950 | Toa Baja | Toa Baja County, PR | |
| 00951 | Toa Baja | Toa Baja County, PR |