There are 36 zip codes in Middlesex County, New Jersey. The most populated is 8854, located in Piscataway. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 08854 | 60,233 | Piscataway |
| 08861 | 58,136 | Perth Amboy |
| 08901 | 56,870 | New Brunswick |
| 08831 | 54,229 | Monroe Township |
| 08816 | 49,027 | East Brunswick |
| 08817 | 48,140 | Edison |
| 08902 | 43,037 | North Brunswick |
| 08857 | 40,430 | Old Bridge |
| 08820 | 39,565 | Edison |
| 07747 | 32,749 | Matawan |
| 07008 | 25,170 | Carteret |
| 08859 | 24,487 | Parlin |
| 07080 | 24,256 | South Plainfield |
| 08879 | 22,514 | South Amboy |
| 07095 | 20,927 | Woodbridge |
| 08536 | 20,693 | Plainsboro |
| 08872 | 19,613 | Sayreville |
| 08837 | 19,544 | Edison |
| 07067 | 18,581 | Colonia |
| 08830 | 18,511 | Iselin |
| 08840 | 18,075 | Metuchen |
| 08852 | 18,068 | Monmouth Junction |
| 07001 | 17,211 | Avenel |
| 08882 | 16,081 | South River |
| 08904 | 14,996 | Highland Park |
| 08846 | 14,525 | Middlesex |
| 08824 | 13,297 | Kendall Park |
| 08863 | 12,663 | Fords |
| 08512 | 12,519 | Cranbury |
| 08850 | 8,410 | Milltown |
| 08810 | 8,361 | Dayton |
| 08884 | 8,152 | Spotswood |
| 07064 | 4,031 | Port Reading |
| 08832 | 2,745 | Keasbey |
| 07077 | 2,695 | Sewaren |
| 08828 | 2,302 | Helmetta |