ALLEGHENY COUNTY, PENNSYLVANIA | ||||
COUNTY SEAT: Pittsburgh YEAR FOUNDED: 1788 | ||||
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Land Area | 730 square miles |
| 2000 Population | 1,281,666 persons |
Water Area | 15 square miles |
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County Area | 745 square miles |
| Population Density | 1,720 persons per square mile |
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Allegheny County contains a total land area of 745 square miles and according to the 2000 census contained a population of 1,281,666 persons. This is a net decrease of 54,189 persons (4.06%) from the 1990 census of 1,335,855 persons. The United States Census Bureau estimates the population of Allegheny County in 2004 to be 1,250,867, which continues the previous decade’s trend. | ||||
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