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Chelmsford, Massachusetts

Town of Chelmsford
Town
First Parish Church
First Parish Church
Official seal of Town of Chelmsford
Seal
Motto: Let the children guard what the sires have won.
Location in Middlesex County in Massachusetts
Location in Middlesex County in Massachusetts
Coordinates: 42°35′59″N 71°22′04″W / 42.59972°N 71.36778°W / 42.59972; -71.36778Coordinates: 42°35′59″N 71°22′04″W / 42.59972°N 71.36778°W / 42.59972; -71.36778
Country United States
State Massachusetts
County Middlesex
Settled 1652
Incorporated 1655
Government
 • Type Representative town meeting
 • Board of
   Selectmen		 Matt Hanson Chair (2016)
Laura Merrill (2015)
Janet Askenburg (2016)
George Dixon (2015)
Ken Lefebvre (2017)
Area
 • Total 23.2 sq mi (60.0 km2)
 • Land 22.7 sq mi (58.7 km2)
 • Water 0.5 sq mi (1.4 km2)
Elevation 246 ft (75 m)
Population (2010)
 • Total 33,802
 • Density 1,500/sq mi (560/km2)
Time zone Eastern (UTC-5)
 • Summer (DST) Eastern (UTC-4)
ZIP code 01824, 01863
Area code(s) 351 / 978
FIPS code 25-13135
GNIS feature ID 0618220
Website www.townofchelmsford.us
Chelmsford, Massachusetts
Climate chart ()
J F M A M J J A S O N D
 
 
3.5
 
 
35
17
 
 
2.8
 
 
38
19
 
 
4.1
 
 
47
27
 
 
3.8
 
 
58
36
 
 
3.7
 
 
69
46
 
 
3.4
 
 
77
55
 
 
3.6
 
 
82
60
 
 
3.4
 
 
81
59
 
 
3.4
 
 
73
50
 
 
3.9
 
 
62
39
 
 
3.8
 
 
51
31
 
 
3.5
 
 
40
22
Average max. and min. temperatures in °F
Precipitation totals in inches
Source:
J F M A M J J A S O N D
 
 
3.5
 
 
35
17
 
 
2.8
 
 
38
19
 
 
4.1
 
 
47
27
 
 
3.8
 
 
58
36
 
 
3.7
 
 
69
46
 
 
3.4
 
 
77
55
 
 
3.6
 
 
82
60
 
 
3.4
 
 
81
59
 
 
3.4
 
 
73
50
 
 
3.9
 
 
62
39
 
 
3.8
 
 
51
31
 
 
3.5
 
 
40
22
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: