Below is a list of Charlton City MA zip codes. For your research we have also included Charlton City Area Code, Time Zone, UTC and the local Worcester County FIPS Code. Each Charlton City Massachusetts zip code has a center Longitude / Latitude point (the Charlton City center is -71.98690032959 / 42.145801544189). For your convenience we have also indicated if that zip code in Charlton City observes Daylight Savings time.