Town Hall Address 304 Main Street Plainfield, MA 01070 United States- Hampshire County Website http://plainfield-ma.us/ Town Clerk 413-634-5420 http://www.plainfield-ma.us United States Assessor 413-634-5420 https://plainfield-ma.us/p/36/Board-of-Assessors Wednesdays - 9:00 AM - 12:00 PM Thursdays - 6:00 - 8:00 PM 304 Main Street Plainfield, United States Tax Collector 413-634-5420 Wednesdays - 9:00 AM - 12:00 PM Thursdays - 6:00 - 8:00 PM 304 Main Street Plainfield, United States Fire District 413-634-5420 United States Town Hall Hours Wednesdays - 9:00 AM - 12:00 PM County Hampshire