There are 85 zip codes in Worcester County, Massachusetts. The most populated is 1453, located in Leominster. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
145343,550Leominster
142041,661Fitchburg
160440,724Worcester
154538,734Shrewsbury
160530,590Worcester
175730,411Milford
161027,033Worcester
160225,869Worcester
160923,256Worcester
160622,636Worcester
158121,360Westborough
144021,231Gardner
160320,678Worcester
157017,671Webster
155017,669Southbridge
152016,893Holden
150116,763Auburn
153215,647Northborough
151015,347Clinton
156914,039Uxbridge
152713,852Millbury
133113,845Athol
150713,338Charlton
156211,955Spencer
157111,885Dudley
146211,765Lunenburg
154011,420Oxford
158810,468Whitinsville
147510,180Winchendon
17729,867Southborough
15909,268Sutton
15169,213Douglas
15049,195Blackstone
15439,102Rutland
16078,630Worcester
15238,395Lancaster
14738,220Westminster
15648,053Sterling
15687,828Upton
15197,634Grafton
15837,476West Boylston
15367,282North Grafton
15666,795Sturbridge
14306,457Ashburnham
17566,238Mendon
15246,077Leicester
17476,021Hopedale
15345,893Northbridge
17405,653Bolton
14515,362Harvard
16085,080Worcester
16125,013Paxton
15054,855Boylston
15854,841West Brookfield
10054,837Barre
15354,750North Brookfield
15604,734South Grafton
14524,338Hubbardston
14684,009Templeton
14363,694Baldwinville
15033,514Berlin
15413,497Princeton
15063,443Brookfield
15293,176Millville
15183,047Fiskdale
15222,890Jefferson
15422,815Rochdale
10832,539Warren
16112,188Cherry Valley
15152,120East Brookfield
15371,935North Oxford
14341,763Devens
10311,697Gilbertville
10681,585Oakham
13681,455Royalston
10921,428West Warren
13661,177Petersham
1531984New Braintree
1074694South Barre
1037582Hardwick
1745554Fayville
1438385East Templeton
109444Wheelwright
152531Linwood
1561South Lancaster
showing: 85 rows

Zip Codes in Worcester County, Massachusetts by Population (2024)