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Background • Federal Census Summary • State Map with County Boundaries • Counties • Links to State Resources Background
Massachusetts was one of the 13 original States. Maine was legally part of Massachusetts from early Colonial times, although geographically separated; Maine became a separate State in 1820, leaving Massachusetts with nearly its present boundaries. A long-standing border dispute with Rhode Island was finally settled with a sizable exchange of territory in 1862.
| Capital: Boston | Total Area: 10,555 sq mi | ||
| Latitude: 41°10'N to 42°53'N | Longitude: 68°57'W to 73°30'W | ||
| Last Significant Boundary Change: 1870 | |||
Census coverage included all of Massachusetts from 1790 on. The counties comprising Maine were reported separately in 1790-1810.
| 1790: 378,787 | 1800: 422,845 | 1810: 472,040 | 1820: 523,287 |
| 1830: 610,408 | 1840: 737,699 | 1850: 994,514 | 1860: 1,231,066 |
| 1870: 1,457,351 | 1880: 1,783,085 | 1890: 2,238,947 | 1900: 2,805,346 |
| 1910: 3,366,416 | 1920: 3,852,356 | 1930: 4,249,614 | 1940: 4,316,721 |
| 1950: 4,690,514 | 1960: 5,148,578 | 1970: 5,689,170 | 1980: 5,737,037 |
| 1990: 6,016,425 | 2000: 6,349,097 |
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Counties |
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Barnstable Berkshire Bristol |
Dukes Essex Franklin |
Hampshire Middlesex Nantucket |
Norfolk Plymouth Suffolk Worcester |