Below is a list of Harwich MA zip codes. For your research we have also included Harwich Area Code, Time Zone, UTC and the local Barnstable County FIPS Code. Each Harwich Massachusetts zip code has a center Longitude / Latitude point (the Harwich center is -70.076499938965 / 41.686199188232). For your convenience we have also indicated if that zip code in Harwich observes Daylight Savings time.