Below is a list of Helmetta NJ zip codes. For your research we have also included Helmetta Area Code, Time Zone, UTC and the local Middlesex County FIPS Code. Each Helmetta New Jersey zip code has a center Longitude / Latitude point (the Helmetta center is -74.426300048828 / 40.375400543213). For your convenience we have also indicated if that zip code in Helmetta observes Daylight Savings time.