two current Combined Statistical Areas (CSA). As a result, the US Census Bureau could begin reporting the Cincinnati and Dayton metropolitan areas as one by that time, though it would be up to the U.S. Office of Management and Budget to make the merger decision. The new Cincinnati–Dayton metropolitan area would be comparable in size to that of the Orlando–Deltona–Daytona Beach, FL CSA and place it within the top 20 most populous metros in the US, with a population of nearly 3.0 million. See also Dayton metropolitan area References Further reading Sealander, Judith. Grand Plans: Business Progressivism and Social Change in Ohio's Miami Valley, 1890-1929 (1988) excerpt Regions of Ohio Valleys of Ohio Landforms of Montgomery County, Ohio Landforms of Greene County, Ohio Landforms of Preble County, Ohio Landforms of Clark County, Ohio Landforms of Miami County, Ohio Landforms of Darke County, Ohio Landforms of Champaign County, Ohio Landforms of Shelby County, Ohio Landforms of Logan County, Ohio Landforms of Butler County, Ohio Landforms of Warren County, Ohio Landforms of Wayne County, Indiana