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Component Change History |
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Apr 1950 |
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- | | New SMA: Lawrence, MA SMA |
- | | Andover town (in Essex County, MA) included as original SMA component |
- | | Lawrence city (in Essex County, MA) included as original SMA component |
- | | Methuen town (in Essex County, MA) included as original SMA component |
- | | North Andover town (in Essex County, MA) included as original SMA component |
- | | Lawrence, MA designated as original central city of new SMA |
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Jun 1959 |
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- | | Title of Lawrence, MA SMA changed to Lawrence-Haverhill, MA-NH SMSA |
- | | Groveland town (in Essex County, MA) added |
- | | Haverhill city (in Essex County, MA) added |
- | | Plaistow town (in Rockingham County, NH) added |
- | | Salem town (in Rockingham County, NH) added |
- | | Haverhill, MA designated as central city of SMSA |
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Oct 1963 |
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- | | Georgetown town (in Essex County, MA) added |
- | | Merrimac town (in Essex County, MA) added |
- | | West Newbury town (in Essex County, MA) added |
- | | Newton town (in Rockingham County, NH) added |
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Apr 1973 |
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- | | Amesbury town (in Essex County, MA) added |
- | | Boxford town (in Essex County, MA) added to Boston, MA SMSA |
- | | Salisbury town (in Essex County, MA) added |
- | | Atkinson town (in Rockingham County, NH) added |
- | | Derry town (in Rockingham County, NH) added to Manchester, NH SMSA |
- | | Hampstead town (in Rockingham County, NH) added |
- | | Kingston town (in Rockingham County, NH) added |
- | | Windham town (in Rockingham County, NH) added |
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Oct 1975 |
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- | | Lawrence-Haverhill, MA-NH SMSA included in Boston-Lawrence-Lowell, MA-NH SCSA |
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Jun 1983 |
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- | | Lawrence-Haverhill, MA-NH SMSA in Boston-Lawrence-Lowell, MA-NH SCSA became Lawrence-Haverhill, MA-NH PMSA in Boston-Lawrence-Salem, MA-NH CMSA |
- | | Boxford town (in Essex County, MA) added, transferred from Boston, MA SMSA in Boston-Lawrence-Lowell, MA-NH SCSA |
- | | Newbury town (in Essex County, MA) added |
- | | Newburyport city (in Essex County, MA) added |
- | | Brentwood town (in Rockingham County, NH) added |
- | | Danville town (in Rockingham County, NH) added |
- | | Derry town (in Rockingham County, NH) added, transferred from Manchester, NH SMSA |
- | | East Kingston town (in Rockingham County, NH) added |
- | | Sandown town (in Rockingham County, NH) added |
- | | Seabrook town (in Rockingham County, NH) added |
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Dec 1992 |
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- | | Lawrence-Haverhill, MA-NH PMSA in Boston-Lawrence-Salem, MA-NH CMSA abolished |
- | | Amesbury town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Andover town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Boxford town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Georgetown town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Groveland town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Haverhill city (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Lawrence city (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Merrimac town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Methuen town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Newbury town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Newburyport city (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | North Andover town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Salisbury town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | West Newbury town (in Essex County, MA) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Atkinson town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Brentwood town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Chester town (in Rockingham County, NH) added to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Danville town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Derry town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | East Kingston town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Fremont town (in Rockingham County, NH) added to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Hampstead town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Kingston town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Newton town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Plaistow town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Raymond town (in Rockingham County, NH) added to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Salem town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Sandown town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Seabrook town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Windham town (in Rockingham County, NH) transferred to Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Haverhill, MA no longer designated as central city |
- | | Lawrence, MA no longer designated as central city |
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Jun 1993 |
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- | | PMSA reestablished: Lawrence, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Andover town (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Boxford town (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Georgetown town (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Groveland town (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Haverhill city (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Lawrence city (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Merrimac town (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Methuen town (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | North Andover town (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | West Newbury town (in Essex County, MA) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Atkinson town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Brentwood town (in Rockingham County, NH) included as original component of reestablished Portsmouth-Rochester, NH-ME PMSA in Boston-Worcester-Lawrence, MA-NH CMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Chester town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Danville town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Derry town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | East Kingston town (in Rockingham County, NH) included as original component of reestablished Portsmouth-Rochester, NH-ME PMSA in Boston-Worcester-Lawrence, MA-NH CMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Fremont town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Hampstead town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Kingston town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Newton town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Plaistow town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Raymond town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Salem town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Sandown town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Windham town (in Rockingham County, NH) included as original component of reestablished PMSA, transferred from Boston, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA |
- | | Lawrence, MA designated as original central city of reestablished PMSA |
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Jun 2003 |
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- | | Counties instead of cities and towns became the basic geographic unit of core based statistical areas in New England |
- | | Lawrence, MA-NH PMSA in Boston-Worcester-Lawrence, MA-NH CMSA abolished |
- | | Lawrence, MA no longer designated as principal/central city |
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