The information below includes the 2020 Census Population compared with the 2010 Census, and 2019 Census estimates for the United States and Massachusetts Counties and Municipalities.
For more information visit the U.S. Census Bureau
| Geographic Area | 2020 Census | 2010 Census | Change from 2010 | % Change | 2019 Estimate | Change from 2019 Est. | % Change |
|---|---|---|---|---|---|---|---|
| United States | 331,449,281 | 308,745,538 | 22,703,743 | 7.35% | 328,239,523 | 3,209,758 | 0.98% |
| Massachusetts | 7,029,917 | 6,547,629 | 482,288 | 7.37% | 6,892,503 | 137,414 | 1.99% |
| Barnstable | 228,996 | 215,888 | 13,108 | 6.07% | 212,990 | 16,006 | 7.51% |
| Berkshire | 129,026 | 131,219 | -2,193 | -1.67% | 124,944 | 4,082 | 3.27% |
| Bristol | 579,200 | 548,285 | 30,915 | 5.64% | 565,217 | 13,983 | 2.47% |
| Dukes | 20,600 | 16,535 | 4,065 | 24.58% | 17,332 | 3,268 | 18.86% |
| Essex | 809,829 | 743,159 | 66,670 | 8.97% | 789,034 | 20,795 | 2.64% |
| Franklin | 71,029 | 71,372 | -343 | -0.48% | 70,180 | 849 | 1.21% |
| Hampden | 465,825 | 463,490 | 2,335 | 0.50% | 466,372 | -547 | -0.12% |
| Hampshire | 162,308 | 158,080 | 4,228 | 2.67% | 160,830 | 1,478 | 0.92% |
| Middlesex | 1,632,002 | 1,503,085 | 128,917 | 8.58% | 1,611,699 | 20,303 | 1.26% |
| Nantucket | 14,255 | 10,172 | 4,083 | 40.14% | 11,399 | 2,856 | 25.05% |
| Norfolk | 725,981 | 670,850 | 55,131 | 8.22% | 706,775 | 19,206 | 2.72% |
| Plymouth | 530,819 | 494,919 | 35,900 | 7.25% | 521,202 | 9,617 | 1.85% |
| Suffolk | 797,936 | 722,023 | 75,913 | 10.51% | 803,907 | -5,971 | -0.74% |
| Worcester | 862,111 | 798,552 | 63,559 | 7.96% | 830,622 | 31,489 | 3.79% |