Below is a list of Holliston MA zip codes. For your research we have also included Holliston Area Code, Time Zone, UTC and the local Middlesex County FIPS Code. Each Holliston Massachusetts zip code has a center Longitude / Latitude point (the Holliston center is -71.429397583008 / 42.200801849365). For your convenience we have also indicated if that zip code in Holliston observes Daylight Savings time.