Decennial Census Population by Pittsburgh Today Staff Categories: Arts Education Environment Housing Sustainability Demographics Economy Government Health Public Safety Transportation Subcategories: Age Poverty Immigration Migration Race and Ethnicity Population Indicators: Annual Population Estimates Annual Population Estimates - Pittsburgh Region Counties Decennial Census Population - Pittsburgh Region Counties Decennial Census Population The Pittsburgh Metropolitan Statistical Area had 2,431,087 people in 2000; by 2010, that number was down by 74,802 to 2,356,285. Cleveland and Detroit also saw population declines over the decade.
