17 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 00926 | San Juan | 92,284 |
| 00924 | San Juan | 49,922 |
| 00921 | San Juan | 33,119 |
| 00915 | San Juan | 24,607 |
| 00923 | San Juan | 24,551 |
| 00917 | San Juan | 17,116 |
| 00918 | San Juan | 16,172 |
| 00920 | San Juan | 15,900 |
| 00907 | San Juan | 15,817 |
| 00927 | San Juan | 13,868 |
| 00911 | San Juan | 7,297 |
| 00913 | San Juan | 6,943 |
| 00901 | San Juan | 6,398 |
| 00912 | San Juan | 5,845 |
| 00909 | San Juan | 5,633 |
| 00925 | San Juan | 4,882 |
| 00906 | San Juan | 49 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 17 ZCTAs in San Juan Municipio, Puerto Rico (US Census).