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Middlesex County, Massachusetts

Middlesex County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
GUS Population: 121,186 (2024)
ID: 166448
Municipal Municipal Government Within County
Contact: MAYOR
795 MASSACHUSETTS AVE, CAMBRIDGE MA 02139-3219
GUS Population: 120,418 (2024)
ID: 166449
Municipal Municipal Government Within County
Contact: DIRECTOR OF ELECTIONS
375 MERRIMACK ST, RM 5, LOWELL MA 01852
GUS Population: 90,700 (2024)
ID: 166452
Municipal Municipal Government Within County
Contact: CITY CLERK
NEWTON CITY HALL, 1000 COMMONWEALTH AVE, NEWTON CENTRE MA 02459-1499
GUS Population: 82,149 (2024)
ID: 166453
Municipal Municipal Government Within County
Contact: MAYOR
93 HIGHLAND AVE, SOMERVILLE MA 02143-1794
GUS Population: 73,361 (2024)
ID: 106133
Municipal Municipal Government Within County
Contact: TOWN MANAGER
150 CONCORD ST, FRAMINGHAM MA 01702-8325
GUS Population: 66,693 (2024)
ID: 166450
Municipal Municipal Government Within County
Contact: EXECUTIVE ASSISTANT TO THE MAYOR
200 PLEASANT ST, RM 629, MALDEN MA 02148-4802
GUS Population: 65,849 (2024)
ID: 183918
Municipal Municipal Government Within County
Contact: MAYOR
610 MAIN ST, WALTHAM MA 02452-5580
GUS Population: 59,898 (2024)
ID: 185819
Municipal Municipal Government Within County
Contact: MAYOR
85 GEORGE P HASSETT DR, MEDFORD MA 02155-3299
GUS Population: 51,825 (2024)
ID: 106064
Municipal Municipal Government Within County
Contact: MAYOR
484 BROADWAY, EVERETT MA 02149-3694
GUS Population: 47,112 (2024)
ID: 166519
Township Municipal Government Within County
Contact: DEPUTY TOWN MANAGER
730 MASSACHUSETTS AVE, ARLINGTON MA 02476-4908
CITY OF WOBURN
GUS Population: 43,895 (2024)
ID: 106071
Municipal Municipal Government Within County
Contact: MAYOR
10 COMMON ST, STE 12, WOBURN MA 01801-6724
GUS Population: 42,978 (2024)
ID: 128142
Township Municipal Government Within County
Contact: CHAIRMAN
29 RIVERDALE RD, BILLERICA MA 01821-5256
CITY OF MARLBOROUGH
GUS Population: 42,169 (2024)
ID: 166451
Municipal Municipal Government Within County
Contact: MAYOR
140 MAIN ST, MARLBOROUGH MA 01752-3871
GUS Population: 37,316 (2024)
ID: 166526
Township Municipal Government Within County
Contact: BOARD OF SELECTMAN
13 E CENTRAL ST, STE 2, NATICK MA 01760-4629
GUS Population: 36,953 (2024)
ID: 166522
Township Municipal Government Within County
Contact: ASSISTATN TO TOWN MANAGER
50 BILLERICA RD, CHELMSFORD MA 01824-3102
GUS Population: 35,985 (2024)
ID: 194919
Municipal Municipal Government Within County
Contact: TOWN CLERK
149 MAIN ST, WATERTOWN MA 02472-4423
GUS Population: 34,743 (2024)
ID: 128144
Township Municipal Government Within County
Contact: TOWN MANAGER
1625 MASSACHUSETTS AVE, LEXINGTON MA 02420-3893
GUS Population: 32,972 (2024)
ID: 194951
Township Municipal Government Within County
Contact: TOWN ENGINEER
62 ARLINGTON STREET, STE 3, DRACUT MA 01826-3919
GUS Population: 31,796 (2024)
ID: 166529
Township Municipal Government Within County
Contact: TOWN MANAGER
1009 MAIN ST, TEWKSBURY MA 01876-4737
GUS Population: 29,938 (2024)
ID: 128107
Municipal Municipal Government Within County
Contact: MAYOR
562 MAIN ST, MELROSE MA 02176-3142
GUS Population: 29,216 (2024)
ID: 128146
Township Municipal Government Within County
Contact: CHAIRMAN
1 LAFAYETTE ST, WAKEFIELD MA 01880-2327
GUS Population: 27,442 (2024)
ID: 166520
Township Municipal Government Within County
Contact: TOWN ADMINISTRATOR
455 CONCORD AVE, BELMONT MA 02478-2573
GUS Population: 26,977 (2024)
ID: 208267
Township Municipal Government Within County
Contact: CHAIRMAN
29 CENTER ST, BURLINGTON MA 01803-3058
GUS Population: 26,041 (2024)
ID: 128145
Township Municipal Government Within County
Contact: TOWN CLERK
16 LOWELL STREET, READING MA 01867-2674
GUS Population: 25,024 (2024)
ID: 204628
Township Municipal Government Within County
Contact: CHAIRMAN
55 MAIN ST, WESTFORD MA 01886-2597
GUS Population: 24,550 (2024)
ID: 212033
Township Municipal Government Within County
Contact: CHAIRMAN, BOARD OF SELECTMEN
35 CENTRAL ST, STONEHAM MA 02180-2055
GUS Population: 24,539 (2024)
ID: 128140
Township Municipal Government Within County
Contact: TOWN OF ACTION DPW DIRECTOR
14 FOREST RD, ACTON MA 01720-4509
GUS Population: 23,953 (2024)
ID: 106146
Township Municipal Government Within County
Contact: CHAIRMAN
71 MOUNT VERNON ST, WINCHESTER MA 01890-2720
GUS Population: 23,802 (2024)
ID: 183922
Township Municipal Government Within County
Contact: TOWN MANAGER
121 GLEN RD, WILMINGTON MA 01887-3597
GUS Population: 20,364 (2024)
ID: 106135
Township Municipal Government Within County
Contact: CHAIRMAN
78 MAIN ST, HUDSON MA 01749-2193
GUS Population: 19,971 (2024)
ID: 166524
Township Municipal Government Within County
Contact: TOWN CLERK
18 MAIN ST, 1, HOPKINTON MA 01748-3208
GUS Population: 19,805 (2024)
ID: 211227
Township Municipal Government Within County
Contact: EXEC ASST TO TOWN MANAGER
278 OLD SUDBURY RD, SUDBURY MA 01776-1843
GUS Population: 19,391 (2024)
ID: 106129
Township Municipal Government Within County
Contact: TOWN ACCOUNTANT
101 MAIN ST, ASHLAND MA 01721-1191
GUS Population: 18,092 (2024)
ID: 183907
Township Municipal Government Within County
Contact: TREASURER/COLLECTOR
PO BOX 535, CONCORD MA 01742-0535
GUS Population: 16,379 (2024)
ID: 208269
Township Municipal Government Within County
Contact: TOWN ADMINISTRATOR
235 NORTH ST, OFC, NORTH READING MA 01864-1260
GUS Population: 15,347 (2024)
ID: 193475
Township Municipal Government Within County
Contact: TOWN CLERK
703 WASHINGTON ST, HOLLISTON MA 01746-2168
GUS Population: 14,955 (2024)
ID: 183905
Township Municipal Government Within County
Contact: TOWN MANAGER
10 MUDGE WAY, STE 1, BEDFORD MA 01730-2144
GUS Population: 14,054 (2024)
ID: 166531
Township Municipal Government Within County
Contact: TOWN ADMINISTRATOR
41 COCHITUATE RD, WAYLAND MA 01778-2697
GUS Population: 12,779 (2024)
ID: 106143
Township Municipal Government Within County
Contact: CHAIRPERSON
25 BRYANT LN, TYNGSBORO MA 01879-1042
GUS Population: 11,877 (2024)
ID: 166527
Township Municipal Government Within County
Contact: CHAIR
1 MAIN ST, PEPPERELL MA 01463-1644
GUS Population: 11,827 (2024)
ID: 183902
Township Municipal Government Within County
Contact: ASSISTANT TO TOWN MANAGER & SELECT BOARD
11 TOWN HOUSE ROAD, WESTON MA 02493-2000
GUS Population: 11,580 (2024)
ID: 128143
Township Municipal Government Within County
Contact: TOWN CLERK
173 MAIN ST, GROTON MA 01450-4231
GUS Population: 10,820 (2024)
ID: 190446
Township Municipal Government Within County
Contact: TOWN ADMINISTRATOR
195 MAIN ST, MAYNARD MA 01754-2575
GUS Population: 10,495 (2024)
ID: 208268
Township Municipal Government Within County
Contact: CHAIRMAN
PO BOX 1305, LITTLETON MA 01460-4305
GUS Population: 9,220 (2024)
ID: 183917
Township Municipal Government Within County
Contact: TOWN CLERK
272 MAIN ST, TOWNSEND MA 01469-1519
GUS Population: 9,010 (2024)
ID: 128141
Township Municipal Government Within County
Contact: TOWN MANAGER
1 MAIN STREET, AYER MA 01432-1373
GUS Population: 7,335 (2024)
ID: 183901
Township Municipal Government Within County
Contact: SELECTMEN'S ADMINISTRATIVE ASSISTANT
380 GREAT RD, STOW MA 01775-2126
TOWN OF SHIRLEY
GUS Population: 7,042 (2024)
ID: 166528
Township Municipal Government Within County
Contact: TOWN ADMINISTRATOR
7 KEADY WAY, SHIRLEY MA 01464-2630
GUS Population: 6,996 (2024)
ID: 166525
Township Municipal Government Within County
Contact: FINANCE DIRECTOR
16 LINCOLN RD, LINCOLN MA 01773-2009
GUS Population: 5,565 (2024)
ID: 166521
Township Municipal Government Within County
Contact: CHAIR
29 MIDDLE RD, BOXBOROUGH MA 01719-1499