Below is a list of Southwick MA zip codes. For your research we have also included Southwick Area Code, Time Zone, UTC and the local Hampden County FIPS Code. Each Southwick Massachusetts zip code has a center Longitude / Latitude point (the Southwick center is -72.77010345459 / 42.054798126221). For your convenience we have also indicated if that zip code in Southwick observes Daylight Savings time.