The Somerville DataCommon is a online mapping tool. Sponsored by the Somerville Community Corporation, it makes available a wealth of information about Somerville, Massachusetts. Explore data, print out maps, and create your own maps.

Somerville is a city located in Middlesex County, Massachusetts, just two miles north of Boston. Occupying slightly over 4 square miles, its population of 77,478 (as of the 2000 Census) and a myriad of immigrants from all over the world make Somerville the most densely populated community in New England and one of the most ethnically diverse cities in the nation. Rich in both history and culture, the city houses numerous intriguing sites, businesses, and restaurants.

The Somerville Community Corporation is a membership organization that provides leadership for sustaining the city of Somerville as a vibrant, diverse and tolerant community. We develop and preserve affordable housing. We offer services and lead community organizing that supports low and moderate-income Somerville residents in their efforts to achieve economic stability and increase civic participation.