Metropolitan Statistical Areas (MSAs)

There are 169 counties in the Fourth District, and 68 of these counties are located within the District’s 16 metropolitan statistical areas (MSAs). An MSA is an area with a large population core, combined with adjacent communities that have a high degree of social and economic integration with that core.

The four most populous MSAs in the Fourth District—Pittsburgh, Cleveland, Cincinnati, and Columbus—contain about half of the District’s total population of nearly 17 million people.

Ten Largest MSAs in the Fourth District

  Metropolitan area
2000
2010
2000-2010 percent change
  Pittsburgh
2,429
2,356
−2.9
  Cleveland
2,148
2,077
−3.2
  Cincinnati
2,015
1,625
−19.3
  Columbus
1,620
1,837
13.4
  Dayton
848
842
−0.7
  Akron
696
703
1.0
  Toledo
659
651
−1.1
  Youngstown
602
449
−25.4
  Lexington
410
472
15.2
  Canton
407
404
−0.6
  Fourth District
16,759
16,944
1.1
  United States
282,166
309,051
9.5

Source: U.S. Census Bureau.