Caloocan City is divided into two geographic locations namely, North Caloocan and South Caloocan which has a land area of 3,970.90 hectares and 1,362.50 hectares respectively summing up to a total land area of 5,333.40 hectares. North Caloocan is bordered by Bulacan, Quezon City, and Valenzuela. South Caloocan, on the other hand, is bordered by Valenzuela, Malabon, Navotas, Quezon City, and Manila.
Caloocan is a highly urbanized city that is composed of 2 districts and 188 barangays.
Caloocan City (North).
| Location | ZIP Code/Postal Code | Phone Area Code |
| Amparo Subdivision | 1425 | 2 |
| Bagong Silang | 1428 | 2 |
| Bagumbong/Pag-asa | 1421 | 2 |
| Bankers Village | 1426 | 2 |
| Capitol Parkland Subd. | 1424 | 2 |
| Kaybiga/Deparo | 1420 | 2 |
| Lilles Ville Subd. | 1423 | 2 |
| Novaliches North | 1422 | 2 |
| Tala Leprosarium | 1427 | 2 |
| Victory Heights | 1427 | 2 |
Caloocan City (South).
| Location | ZIP Code/Postal Code | Phone Area Code |
| 1st to 7th Ave. West | 1405 | 2 |
| Baesa | 1401 | 2 |
| Fish Market | 1411 | 2 |
| Grace Park East | 1403 | 2 |
| Grace Park West | 1406 | 2 |
| Isla de Cocomo | 1412 | 2 |
| Kaloocan City CPO | 1400 | 2 |
| Kapitbahayan East | 1413 | 2 |
| Kanluran Village | 1409 | 2 |
| Maypajo | 1410 | 2 |
| San Jose | 1404 | 2 |
| Sangandaan | 1408 | 2 |
| Sta. Quiteria | 1402 | 2 |
| University Hills | 1407 | 2 |
Go back to the main article: ZIP Codes in the Philippines: The Complete List
