| 1 | Unincorporated (north 5) | 9,329 |
| 2 | Unincorporated (north-northeast 5) | 8,733 |
| 3 | Unincorporated (northeast 7) | 8,536 |
| 4 | Unincorporated (northwest 5) | 8,224 |
| 5 | Angleside | 8,161 |
| 6 | Marlborough Junction (southeast) | 8,140 |
| 7 | Unincorporated (south 10) | 8,064 |
| 8 | Common Historic District (west-northwest) | 7,738 |
| 9 | Unincorporated (northeast 6) | 7,666 |
| 10 | Hanscom AFB CDP (north) | 7,561 |
| 11 | Arlington Heights (east-northeast) | 7,507 |
| 12 | Shakerhill | 7,412 |
| 13 | Arlington Heights (west) | 7,276 |
| 14 | North Woburn | 7,273 |
| 15 | Robin Hill | 7,229 |
| 16 | Regency Place Apartments (southwest) | 7,175 |
| 17 | Marlborough Junction (north-northwest) | 7,119 |
| 18 | Unincorporated (north-northwest 9) | 7,118 |
| 19 | Linden (north-northwest) | 7,110 |
| 20 | Riverside (east-southeast) | 7,073 |
| 21 | Regency Place Apartments (northeast) | 7,022 |
| 22 | Shirley CDP | 7,017 |
| 23 | Edgeworth | 6,969 |
| 24 | Unincorporated (north 1) | 6,951 |
| 25 | Hanscom AFB CDP (south) | 6,946 |
| 26 | Wyoming (east) | 6,946 |
| 27 | Unincorporated (north-northwest 3) | 6,907 |
| 28 | Unincorporated (north-northeast 1) | 6,902 |
| 29 | Havenville (northwest) | 6,884 |
| 30 | Woburn Street Historic District | 6,865 |
| 31 | Unincorporated (north-northwest 5) | 6,831 |
| 32 | Unincorporated (southeast 2) | 6,823 |
| 33 | Unincorporated (north-northeast 2) | 6,802 |
| 34 | Unincorporated (east-northeast) | 6,782 |
| 35 | Winnmere (north-northwest) | 6,726 |
| 36 | Malden Centre (south-southeast) | 6,715 |
| 37 | Unincorporated (north-northeast 4) | 6,646 |
| 38 | Wakefield Junction | 6,632 |
| 39 | Glenwood (north-northwest) | 6,623 |
| 40 | Brampton Circle (southeast) | 6,614 |
| 41 | Common Historic District (east-southeast) | 6,599 |
| 42 | Centralville (east-northeast) | 6,597 |
| 43 | Montvale | 6,586 |
| 44 | Bemis (northwest) | 6,583 |
| 45 | South Lowell (northwest) | 6,563 |
| 46 | Marlborough Junction (east-northeast) | 6,525 |
| 47 | Unincorporated (north-northwest 4) | 6,486 |
| 48 | Maplewood (west-southwest) | 6,472 |
| 49 | Bowdoin Apartments | 6,435 |
| 50 | Princeton Village | 6,334 |
| 51 | Highlands (south-southeast) | 6,329 |
| 52 | Unincorporated (southwest 3) | 6,300 |
| 53 | Orvis Road Historic District (south) | 6,285 |
| 54 | Fuller Heights | 6,245 |
| 55 | Unincorporated (south 8) | 6,226 |
| 56 | Coburnville (southwest) | 6,225 |
| 57 | Newton Corner (south-southeast) | 6,216 |
| 58 | Pawtucketville (southwest) | 6,189 |
| 59 | West Concord (west) | 6,189 |
| 60 | Maplewood (east-northeast) | 6,144 |
| 61 | Newton Centre | 6,139 |
| 62 | Nobility Hill Historic District | 6,119 |
| 63 | Pigeon Hill | 6,111 |
| 64 | Pinefield | 6,103 |
| 65 | City Hall Historic District (west) | 6,099 |
| 66 | Groton CDP (northeast) | 6,084 |
| 67 | Thompsonville (north) | 6,083 |
| 68 | Unincorporated (east-southeast) | 6,062 |
| 69 | Pleasant Street Historic District | 6,061 |
| 70 | Framingham Center (northeast) | 6,046 |
| 71 | Maynard CDP (northwest) | 6,043 |
| 72 | Wedgemere Historic District (southwest) | 6,024 |
| 73 | Symmes Corner | 6,004 |
| 74 | Unincorporated (south-southeast 2) | 5,994 |
| 75 | Banks Square | 5,992 |
| 76 | Unincorporated (south 12) | 5,976 |
| 77 | West Concord (east) | 5,975 |
| 78 | Ball Square | 5,970 |
| 79 | The Island | 5,961 |
| 80 | Yale Avenue Historic District | 5,949 |
| 81 | North Lexington | 5,928 |
| 82 | Nobscot (northwest) | 5,920 |
| 83 | Browns Corner (west-northwest) | 5,843 |
| 84 | Unincorporated (north-northeast 3) | 5,835 |
| 85 | The Bleachery | 5,786 |
| 86 | Shaker Glen | 5,785 |
| 87 | Riverside (west-northwest) | 5,761 |
| 88 | Fox Hill | 5,758 |
| 89 | Glen Meadow West | 5,727 |
| 90 | North Wilmington | 5,721 |
| 91 | West Medford (north-northwest) | 5,719 |
| 92 | Unincorporated (south-southwest 1) | 5,713 |
| 93 | Unincorporated (south-southeast 4) | 5,697 |
| 94 | Middlesex Village (west) | 5,688 |
| 95 | Littleton Common CDP | 5,682 |
| 96 | Haywardville | 5,674 |
| 97 | Unincorporated (north 2) | 5,665 |
| 98 | Glendale (west-northwest) | 5,646 |
| 99 | Mid-Cambridge (west) | 5,646 |
| 100 | West Newton (south) | 5,639 |
| 101 | Glendale (south-southeast) | 5,594 |
| 102 | Malden Highlands | 5,593 |
| 103 | Cochituate (north) | 5,555 |
| 104 | Orvis Road Historic District (north) | 5,546 |
| 105 | Unincorporated (north-northwest 6) | 5,514 |
| 106 | Medford Square (south-southwest) | 5,506 |
| 107 | Glendale (east) | 5,487 |
| 108 | North Cambridge (west) | 5,482 |
| 109 | Framingham Center (west-southwest 1) | 5,475 |
| 110 | Coburnville (east) | 5,474 |
| 111 | Melrose Highlands (west) | 5,472 |
| 112 | Unincorporated (west-southwest 3) | 5,468 |
| 113 | Newton Corner (north-northwest) | 5,323 |
| 114 | Newton Lower Falls | 5,314 |
| 115 | Unincorporated (north-northwest 2) | 5,306 |
| 116 | Unincorporated (south-southeast 3) | 5,275 |
| 117 | Greenwood (south) | 5,264 |
| 118 | Newton Upper Falls | 5,251 |
| 119 | Unincorporated (south-southeast 1) | 5,229 |
| 120 | Nonantum | 5,223 |
| 121 | Unincorporated (north 4) | 5,209 |
| 122 | Cummingsville | 5,203 |
| 123 | Saxonville | 5,193 |
| 124 | Groton CDP (southwest) | 5,181 |
| 125 | Glenwood (south-southeast) | 5,174 |
| 126 | South Medford | 5,174 |
| 127 | South Lowell (southeast) | 5,163 |
| 128 | MIT | 5,151 |
| 129 | East Lexington | 5,145 |
| 130 | Unincorporated (north 7) | 5,136 |
| 131 | Cambridgeport | 5,129 |
| 132 | Wyoming (west) | 5,129 |
| 133 | Lindenwood | 5,126 |
| 134 | Unincorporated (northeast 1) | 5,118 |
| 135 | Waverley (north) | 5,103 |
| 136 | College Farm | 5,078 |
| 137 | Lasell Village | 5,073 |
| 138 | Montrose | 5,014 |
| 139 | Warrendale | 5,004 |
| 140 | Townsend CDP (south) | 4,995 |
| 141 | Unincorporated (northwest 4) | 4,976 |
| 142 | Baldwin | 4,966 |
| 143 | Daymon Farms | 4,926 |
| 144 | Mishawum (south-southwest) | 4,924 |
| 145 | Idylwilde | 4,921 |
| 146 | Doeskin Hills | 4,913 |
| 147 | Teele Square (east) | 4,908 |
| 148 | Unincorporated (north 8) | 4,908 |
| 149 | Browns Corner (northeast) | 4,892 |
| 150 | Glendale (north-northeast) | 4,870 |
| 151 | Ayres City | 4,846 |
| 152 | Unincorporated (south-southeast 6) | 4,845 |
| 153 | Hudson CDP | 4,843 |
| 154 | Cambodia Town (south) | 4,840 |
| 155 | Belvidere (northeast) | 4,836 |
| 156 | Unincorporated (south 6) | 4,777 |
| 157 | Bryant Terrace Apartments | 4,775 |
| 158 | Wellington (west-southwest) | 4,769 |
| 159 | Unincorporated (south 2) | 4,762 |
| 160 | Old Cambridge (north) | 4,733 |
| 161 | Glendale (south-southwest) | 4,703 |
| 162 | West Newton (north) | 4,686 |
| 163 | East Cambridge (south) | 4,678 |
| 164 | Unincorporated (south-southeast 5) | 4,661 |
| 165 | Marlborough Junction (southwest 1) | 4,650 |
| 166 | Cochituate (south) | 4,643 |
| 167 | Unincorporated (northeast 8) | 4,633 |
| 168 | Maynard CDP (southeast) | 4,620 |
| 169 | Unincorporated (southeast 1) | 4,620 |
| 170 | Unincorporated (south 1) | 4,611 |
| 171 | Unincorporated (south 11) | 4,611 |
| 172 | Highlands (north-northwest 1) | 4,606 |
| 173 | Unincorporated (northwest 2) | 4,553 |
| 174 | Devens CDP | 4,533 |
| 175 | The Acre (west) | 4,475 |
| 176 | Unincorporated (west-northwest 3) | 4,468 |
| 177 | West Village | 4,436 |
| 178 | Greenwood (north) | 4,425 |
| 179 | Auburndale | 4,421 |
| 180 | Arlington Heights (south-southwest) | 4,414 |
| 181 | Unincorporated (south-southeast 8) | 4,404 |
| 182 | Neighborhood Nine (west) | 4,402 |
| 183 | Prospect Hill | 4,394 |
| 184 | The Pines (northwest) | 4,388 |
| 185 | Browns Corner (south) | 4,381 |
| 186 | Unincorporated (south 9) | 4,377 |
| 187 | Hendersonville (south) | 4,362 |
| 188 | Bemis (west-southwest) | 4,343 |
| 189 | Oak Hill Park | 4,337 |
| 190 | East Watertown (north-northwest) | 4,321 |
| 191 | Strawberry Hill (east) | 4,320 |
| 192 | Unincorporated (west-northwest 2) | 4,316 |
| 193 | Malden Gaming District | 4,290 |
| 194 | Union Square (east-southeast) | 4,290 |
| 195 | Unincorporated (north-northwest 7) | 4,259 |
| 196 | Unincorporated (south 5) | 4,259 |
| 197 | Reading Highlands | 4,246 |
| 198 | Larchwood | 4,232 |
| 199 | Pierce Farm Historic District | 4,198 |
| 200 | Woburn Highlands | 4,188 |
| 201 | Coburnville (south-southeast) | 4,177 |
| 202 | East Watertown (east-northeast) | 4,159 |
| 203 | Inner Belt | 4,118 |
| 204 | Framingham Center (east) | 4,110 |
| 205 | Unincorporated (northwest 6) | 4,103 |
| 206 | Oak Grove | 4,092 |
| 207 | Newton Highlands | 4,068 |
| 208 | Wedgemere | 4,067 |
| 209 | Townsend CDP (north) | 4,057 |
| 210 | Oaklands | 4,054 |
| 211 | Union Square (west-northwest) | 4,045 |
| 212 | Unincorporated (north-northeast 7) | 4,042 |
| 213 | Kendall Gardens (south-southwest) | 4,040 |
| 214 | Kensington Park Historic District (west-northwest) | 3,989 |
| 215 | Spring Hill Historic District (south-southeast) | 3,981 |
| 216 | Unincorporated (northeast 2) | 3,970 |
| 217 | Framingham Center (west-southwest 2) | 3,963 |
| 218 | Unincorporated (west-northwest 1) | 3,958 |
| 219 | Glendale (north-northwest) | 3,931 |
| 220 | Hendersonville (north) | 3,903 |
| 221 | Kendall Gardens (north-northeast) | 3,898 |
| 222 | East Pepperell CDP | 3,875 |
| 223 | Coburnville (north) | 3,838 |
| 224 | Centralville (west-southwest) | 3,823 |
| 225 | East Somerville (east-southeast) | 3,822 |
| 226 | Medford Hillside | 3,821 |
| 227 | Winter Hill | 3,814 |
| 228 | Unincorporated (north 3) | 3,812 |
| 229 | Wellington (east-southeast) | 3,812 |
| 230 | Merrimack-Middle Street Historic District | 3,805 |
| 231 | The Pines (southeast) | 3,793 |
| 232 | Waban | 3,788 |
| 233 | Unincorporated (west-southwest 2) | 3,782 |
| 234 | Prospectville | 3,764 |
| 235 | West Cambridge | 3,747 |
| 236 | Nobscot (southeast) | 3,741 |
| 237 | West Somerville | 3,723 |
| 238 | Middlesex Village (east) | 3,722 |
| 239 | Four Corners | 3,713 |
| 240 | Pawtucketville (northeast) | 3,703 |
| 241 | Unincorporated (southwest 1) | 3,702 |
| 242 | East Watertown (southwest) | 3,688 |
| 243 | Hovey Corner | 3,678 |
| 244 | Thompsonville (south) | 3,678 |
| 245 | Old Ship Street Historic District | 3,675 |
| 246 | Hendersonville (north-northeast) | 3,674 |
| 247 | Mount Vernon Street Historic District | 3,669 |
| 248 | East Arlington | 3,646 |
| 249 | Walnut Hill | 3,638 |
| 250 | Unincorporated (south-southeast 7) | 3,628 |
| 251 | Waverley Oaks | 3,626 |
| 252 | Rangely Acres | 3,625 |
| 253 | West Everett | 3,624 |
| 254 | Unincorporated (north 6) | 3,504 |
| 255 | Wedgemere Historic District (northeast) | 3,483 |
| 256 | Bleachery | 3,480 |
| 257 | Unincorporated (south 3) | 3,472 |
| 258 | Newtonville | 3,459 |
| 259 | Unincorporated (northeast 4) | 3,458 |
| 260 | Bemis (northeast) | 3,455 |
| 261 | Strawberry Hill (west) | 3,450 |
| 262 | Glendale (southwest) | 3,442 |
| 263 | East Cambridge (east-northeast) | 3,428 |
| 264 | Unincorporated (north-northwest 1) | 3,418 |
| 265 | Unincorporated (southwest 2) | 3,407 |
| 266 | South Side | 3,405 |
| 267 | Unincorporated (northwest 3) | 3,375 |
| 268 | Spring Hill Historic District (north) | 3,373 |
| 269 | Hillside Avenue Historic District (north-northwest) | 3,348 |
| 270 | Spring Hill (northwest) | 3,345 |
| 271 | Bemis (east-southeast) | 3,344 |
| 272 | Unincorporated (west-southwest 1) | 3,341 |
| 273 | Coolidge Hill | 3,336 |
| 274 | Fells | 3,316 |
| 275 | Unincorporated (north-northeast 6) | 3,302 |
| 276 | Cambridge Highlands (northeast) | 3,299 |
| 277 | Marlborough Junction (southwest 2) | 3,299 |
| 278 | Cushing Square (east-southeast) | 3,295 |
| 279 | Winchester Highlands | 3,284 |
| 280 | Avalon Oaks | 3,277 |
| 281 | Highlands (north-northwest 2) | 3,245 |
| 282 | Melrose Highlands (southeast) | 3,223 |
| 283 | Unincorporated (west) | 3,211 |
| 284 | Farm Hill | 3,206 |
| 285 | Linden (south-southeast) | 3,192 |
| 286 | Unincorporated (west-northwest 4) | 3,188 |
| 287 | Cambodia Town (north) | 3,175 |
| 288 | Cushing Square (north) | 3,154 |
| 289 | Kensington Park Historic District (east-southeast) | 3,154 |
| 290 | Mid-Cambridge (east) | 3,143 |
| 291 | Cambridge Highlands (west) | 3,112 |
| 292 | Hillside Avenue Historic District (south-southeast) | 3,091 |
| 293 | Inman Square | 3,091 |
| 294 | Unincorporated (northeast 3) | 3,088 |
| 295 | West Medford (south-southeast) | 3,069 |
| 296 | Oak Hill | 3,066 |
| 297 | East Somerville (west) | 3,060 |
| 298 | Night Caps Corner | 3,027 |
| 299 | South Common Historic District (southwest) | 3,016 |
| 300 | Unincorporated (northwest 1) | 3,011 |
| 301 | Harlow Square | 2,980 |
| 302 | Unincorporated (south 4) | 2,978 |
| 303 | Magoun Square | 2,931 |
| 304 | Avon Hill | 2,926 |
| 305 | Central Square | 2,923 |
| 306 | Melrose Highlands (northeast) | 2,923 |
| 307 | Belvidere (southwest) | 2,909 |
| 308 | Teele Square (west) | 2,872 |
| 309 | Unincorporated (south 7) | 2,871 |
| 310 | Central Square Historic District | 2,861 |
| 311 | Coburnville (northwest) | 2,859 |
| 312 | East Cambridge (east) | 2,849 |
| 313 | City Hall Historic District (east) | 2,750 |
| 314 | Spring Hill (southeast) | 2,739 |
| 315 | Waverley Square | 2,729 |
| 316 | Medford Square (north-northeast) | 2,701 |
| 317 | Unincorporated (north-northwest 8) | 2,687 |
| 318 | Malden Centre (north-northwest) | 2,584 |
| 319 | Wellington (north-northeast) | 2,580 |
| 320 | Havenville (southeast) | 2,543 |
| 321 | Montage at Danforth Green | 2,527 |
| 322 | Brickbottom | 2,517 |
| 323 | Ten Hills (southwest) | 2,500 |
| 324 | The Chemistry | 2,483 |
| 325 | Windsor at Oak Grove | 2,479 |
| 326 | Brampton Circle (northwest) | 2,464 |
| 327 | Waverley (south) | 2,421 |
| 328 | The Acre (east) | 2,383 |
| 329 | Cushing Square (west-southwest) | 2,369 |
| 330 | North Cambridge (east) | 2,319 |
| 331 | Old Cambridge (south) | 2,306 |
| 332 | Winnmere (south-southeast) | 2,228 |
| 333 | South Common Historic District (northeast) | 2,169 |
| 334 | Ten Hills (east) | 2,165 |
| 335 | Wellington-Harrington | 2,102 |
| 336 | Woods Corner | 2,084 |
| 337 | Spring Hill Historic District (west) | 2,081 |
| 338 | Neighborhood Nine (east) | 2,027 |
| 339 | Mishawum (north-northeast) | 1,981 |
| 340 | Mount Auburn | 1,976 |
| 341 | Davis Square (west-southwest) | 1,972 |
| 342 | Bemis (south-southeast) | 1,970 |
| 343 | East Cambridge (northwest) | 1,894 |
| 344 | East Cambridge (west) | 1,887 |
| 345 | Huron Village | 1,870 |
| 346 | The Port | 1,801 |
| 347 | Cambridge Highlands (southwest) | 1,731 |
| 348 | Davis Square (east-northeast) | 1,655 |
| 349 | Unincorporated (northeast 5) | 1,590 |
| 350 | Wayside Woods | 1,449 |
| 351 | East Watertown (south-southwest) | 1,431 |
| 352 | East Somerville (northeast) | 1,334 |
| 353 | Ten Hills (northwest) | 1,271 |
| 354 | Faulkner | 1,138 |