------------------------------------------------------------------------------------------------------------------------- Pittsburgh-New Castle, PA [CSA] ------------------------------------------------------------------------------------------------------------------------- 2003-2006: Pittsburgh-New Castle, PA CSA Subareas Timeline ---------------------------------------------------------------------------------------- 1950 1960 1970 1980 1990 2000 Subarea | | | | | | | | | | | | ---------------------------------------------------------------------------------------- Pittsburgh, PA '''''''''''''''''''''''''''''''''''''''''''''''''''''**** Beaver County, PA ''''''''' Pittsburgh, PA ''''''''' New Castle, PA [Micro Area] **** ---------------------------------------------------------------------------------------- Population History ------------------------------------------------------------------------------------------------------------------------- Component 1950 1960 1970 1980 1990 2000 2005 ------------------------------------------------------------------------------------------------------------------------- Lawrence County, PA 105,120 112,965 107,374 107,150 96,246 94,643 92,412* Allegheny County, PA 1,515,237 1,628,587 1,605,016 1,450,085 1,336,449 1,281,666 1,233,036* Armstrong County, PA 80,842 79,524 75,590 77,768 73,478 72,392 70,527* Beaver County, PA 175,192 206,948 208,418 204,441 186,093 181,412 176,825* Butler County, PA 97,320 114,639 127,941 147,912 152,013 174,083 181,526* Fayette County, PA 189,899 169,340 154,667 159,417 145,351 148,644 146,206* Washington County, PA 209,628 217,271 210,876 217,074 204,584 202,897 206,418* Westmoreland County, PA 313,179 352,629 376,935 392,294 370,321 369,993 367,133* ------------------------------------------------------------------------------------------------------------------------- Total - - - - - - 2,474,083 Percent Change - - - - - - - ------------------------------------------------------------------------------------------------------------------------- Total (as currently defined) 2,686,417 2,881,903 2,866,817 2,756,141 2,564,535 2,525,730 2,474,083 Percent Change - 7.3% -0.5% -3.9% -7.0% -1.5% -2.0% ------------------------------------------------------------------------------------------------------------------------- Component Change Timeline ---------------------------------------------------------------------------------------- 1950 1960 1970 1980 1990 2000 Component | | | | | | | | | | | | ---------------------------------------------------------------------------------------- Lawrence County, PA **** Allegheny County, PA '''''''''''''''''''''''''''''''''''''''''''''''''''''**** Armstrong County, PA **** Beaver County, PA '''''''''''''''''''''''''''''''''''''''''''''''''''''**** Butler County, PA '''''''''''**** Fayette County, PA ''''''''''''''''''''**** Washington County, PA '''''''''''''''''''''''''''''''''''''''''''''''''''''**** Westmoreland County, PA '''''''''''''''''''''''''''''''''''''''''''''''''''''**** ---------------------------------------------------------------------------------------- Population History ------------------------------------------------------------------------------------------------------------------------- City 1950 1960 1970 1980 1990 2000 2005 ------------------------------------------------------------------------------------------------------------------------- New Castle, PA 0 0 0 0 0 0 25,030* Pittsburgh, PA 0 0 0 0 0 0 316,718* McKeesport, PA 0 0 0 0 0 0 22,701 Total 0 0 0 0 0 0 341,748 Metro 0 0 0 0 0 0 2,474,083 Percent 13.8% Principal/Central City Change Timeline ---------------------------------------------------------------------------------------- 1950 1960 1970 1980 1990 2000 City | | | | | | | | | | | | ---------------------------------------------------------------------------------------- New Castle, PA **** Pittsburgh, PA **** McKeesport, PA ---------------------------------------------------------------------------------------- Component Change History ------------------------------------------------------------------------------------------------------------------------- Apr 1950 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 Jun 1983 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 Dec 1992 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 Jun 2003 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 -------------------------------------------------------------------------------------------------------------------------