Explore ZIP codes in Middlesex, New Jersey. This city has 45 unique ZIP Codes. Find the ZIP code for any area in Middlesex.
Avenel
Carteret
Colonia
Cranbury
Dayton
Dunellen
East Brunswick
Edison
Fords
Helmetta
Highland Park
Iselin
Keasbey
Kendall Park
Metuchen
Middlesex
Milltown
Monmouth Junction
Monroe Township
New Brunswick