Example image of eyePlorer eyePlorer map for 'Chelmsford, Massachusetts': Greater Boston Massachusetts Middlesex County, Massachusetts Boston Greater Lowell Lowell, Massachusetts Metropolitan area Billerica, Massachusetts Carlisle, Massachusetts Tewksbury, Massachusetts Tyngsborough, Massachusetts Westford, Massachusetts Concord River Catholic Church Irish people Italian people Money Magazine United States Census Bureau Merrimack River North Chelmsford, Massachusetts Census Population density Race and ethnicity in the United States Census Marriage Per capita income Poverty threshold Concord, Massachusetts Woburn, Massachusetts Chelmsford England Groton, Massachusetts American Revolution Battle of Bunker Hill Battles of Lexington and Concord Massachusetts Line Red coat (British army) Ralph Waldo Emerson DeMoulas/Market Basket Chelmsford High School Nashoba Valley Technical High School Massachusetts Route 4 Massachusetts Route 129 Interstate 495 (Massachusetts) Massachusetts Route 110 Massachusetts Route 27 Massachusetts Route 3A (north) Massachusetts Route 40 Chicken (game) Drum Hill Rotary Interstate 95 in Massachusetts