Union Square Neighbors (USN) is an independent, all-volunteer neighborhood association. Participation in USN is open to anyone who lives or works in and around Union Square. You can check to see if you live or work in our membership area by looking at the map on our membership page. If you are outside our membership area, be sure to check out our links to other neighborhood associations in Somerville, or start (or revive) a group yourself. We would be happy to help!