What Time Zone is Springfield, Massachusetts. Users can easily view the boundaries of each Zip Code and the state as a whole. Explore Springfield, Massachusetts zip code map, area code information, demographic, social and economic profile. ZIP+4 ZIP Code Database Covering every address in the U.S., get the +4 information you need. //-->, Cities in Massachusetts that start with S. Find MoreCities in Massachusetts that start with S, Post Office Suburb:SPRINGFIELD, MA, 01101-9998,