------------------------------------------------------------------------------------------------------------------------- Pittsburgh, PA ------------------------------------------------------------------------------------------------------------------------- 1983-1992: Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA 1992-2006: Not defined Population History ------------------------------------------------------------------------------------------------------------------------- Component 1950 1960 1970 1980 1990 2000 2005 ------------------------------------------------------------------------------------------------------------------------- Allegheny County, PA 1,515,237 1,628,587 1,605,016 1,450,085 1,336,449* 1,281,666 1,233,036 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 - - - - 2,056,705 - - Percent Change - - - - - -100.0% - ------------------------------------------------------------------------------------------------------------------------- Component Change Timeline ---------------------------------------------------------------------------------------- 1950 1960 1970 1980 1990 2000 Component | | | | | | | | | | | | ---------------------------------------------------------------------------------------- Allegheny County, PA '''''''''''''''''''''''''''''''''*********''''''''''''''' Fayette County, PA *********''''''''''''''' Washington County, PA '''''''''''''''''''''''''''''''''*********''''''''''''''' Westmoreland County, PA '''''''''''''''''''''''''''''''''*********''''''''''''''' ---------------------------------------------------------------------------------------- Population History ------------------------------------------------------------------------------------------------------------------------- City 1950 1960 1970 1980 1990 2000 2005 ------------------------------------------------------------------------------------------------------------------------- McKeesport, PA 0 0 0 0 26,016* 0 0 Pittsburgh, PA 0 0 0 0 369,879* 0 0 Total 0 0 0 0 395,895 0 0 Metro 0 0 0 0 2,056,705 0 0 Percent 19.2% Principal/Central City Change Timeline ---------------------------------------------------------------------------------------- 1950 1960 1970 1980 1990 2000 City | | | | | | | | | | | | ---------------------------------------------------------------------------------------- McKeesport, PA ********* Pittsburgh, PA ********* ---------------------------------------------------------------------------------------- Component Change History ------------------------------------------------------------------------------------------------------------------------- Apr 1950 Allegheny 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 New PMSA: Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA Allegheny County, PA included as original PMSA component, transferred from Pittsburgh, PA SMSA Fayette County, PA included as original PMSA component Washington County, PA included as original PMSA component, transferred from Pittsburgh, PA SMSA Westmoreland County, PA included as original PMSA component, transferred from Pittsburgh, PA SMSA McKeesport, PA designated as original central city of new PMSA Pittsburgh, PA designated as original central city of new PMSA, transferred from Pittsburgh, PA SMSA Dec 1992 Pittsburgh, PA PMSA in Pittsburgh-Beaver Valley, PA CMSA abolished Allegheny County, PA transferred to Pittsburgh, PA MSA Fayette County, PA transferred to Pittsburgh, PA MSA Washington County, PA transferred to Pittsburgh, PA MSA Westmoreland County, PA transferred to Pittsburgh, PA MSA Pittsburgh, PA transferred to Pittsburgh, PA MSA, designated as central city of MSA McKeesport, PA no longer designated as central city -------------------------------------------------------------------------------------------------------------------------