Middlesex County, New Jersey — ZIP directory
36 ZIP codes in Middlesex County. Pick a ZIP for services, power context, permits, and FAQs written for homeowners.

- Avenel 07001 — Avenel
- Carteret 07008 — Carteret
- Port Reading 07064 — Port Reading
- Colonia 07067 — Colonia
- Sewaren 07077 — Sewaren
- South Plainfield 07080 — South Plainfield
- Woodbridge 07095 — Woodbridge
- Cranbury 08512 — Cranbury
- Plainsboro 08536 — Plainsboro
- Dayton 08810 — Dayton
- Dunellen 08812 — Dunellen
- East Brunswick 08816 — East Brunswick
- Edison 08817 — Edison
- Edison 08820 — Edison
- Kendall Park 08824 — Kendall Park
- Helmetta 08828 — Helmetta
- Iselin 08830 — Iselin
- Monroe Township 08831 — Monroe Township
- Keasbey 08832 — Keasbey
- Edison 08837 — Edison
- Metuchen 08840 — Metuchen
- Middlesex 08846 — Middlesex
- Milltown 08850 — Milltown
- Monmouth Junction 08852 — Monmouth Junction
- Piscataway 08854 — Piscataway
- Old Bridge 08857 — Old Bridge
- Parlin 08859 — Parlin
- Perth Amboy 08861 — Perth Amboy
- Fords 08863 — Fords
- Sayreville 08872 — Sayreville
- South Amboy 08879 — South Amboy
- South River 08882 — South River
- Spotswood 08884 — Spotswood
- New Brunswick 08901 — New Brunswick
- North Brunswick 08902 — North Brunswick
- Highland Park 08904 — Highland Park