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Component Change History |
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Apr 1950 |
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- | | New SMA: Pittsburgh, PA SMA |
- | | Allegheny County, PA included as original component of Pittsburgh, PA SMA |
- | | Beaver County, PA included as original component of Pittsburgh, PA SMA |
- | | Washington County, PA included as original component of Pittsburgh, PA SMA |
- | | Westmoreland County, PA included as original component of Pittsburgh, PA SMA |
- | | Pittsburgh, PA designated as original central city of new Pittsburgh, PA SMA |
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Jun 1983 |
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- | | McKeesport, PA designated as original central city of new Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA |
- | | Fayette County, PA included as original component of Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA |
- | | Pittsburgh, PA transferred from Pittsburgh, PA SMSA to Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA and was designated as original central city of new PMSA |
- | | Title of Pittsburgh, PA SMSA changed to Pittsburgh-Beaver Valley, PA CMSA |
- | | Allegheny County, PA included as original component of Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA, transferred from Pittsburgh, PA SMSA |
- | | Beaver County, PA included as original component of Beaver County, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA, transferred from Pittsburgh, PA SMSA |
- | | Washington County, PA included as original component of Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA, transferred from Pittsburgh, PA SMSA |
- | | Westmoreland County, PA included as original component of Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA, transferred from Pittsburgh, PA SMSA |
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Dec 1992 |
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- | | McKeesport, PA no longer designated as central city of Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA |
- | | Title of Pittsburgh-Beaver Valley, PA CMSA changed to Pittsburgh, PA MSA |
- | | Allegheny County, PA added to Pittsburgh, PA MSA, transferred from Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA |
- | | Beaver County, PA added to Pittsburgh, PA MSA, transferred from Beaver County, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA |
- | | Butler County, PA added to Pittsburgh, PA MSA |
- | | Fayette County, PA added to Pittsburgh, PA MSA, transferred from Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA |
- | | Washington County, PA added to Pittsburgh, PA MSA, transferred from Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA |
- | | Westmoreland County, PA added to Pittsburgh, PA MSA, transferred from Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA |
- | | Pittsburgh, PA transferred from Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA to Pittsburgh, PA MSA and was designated as central city of MSA |
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Jun 2003 |
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- | | New CSA: Pittsburgh-New Castle, PA CSA |
- | | Armstrong County, PA added to Pittsburgh, PA Metro Area in Pittsburgh-New Castle, PA CSA |
- | | New Micro Area: New Castle, PA Micro Area in Pittsburgh-New Castle, PA CSA |
- | | Lawrence County, PA included as original component of New Castle, PA Micro Area in Pittsburgh-New Castle, PA CSA |
- | | New Castle, PA designated as original principal city of new New Castle, PA Micro Area in Pittsburgh-New Castle, PA CSA |
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