largest DMA in the U.S. as ranked by population, with a population of 2,881,200. Pittsburgh's DMA covers a land area of in three states. Other definitions of the "Pittsburgh region" extend into Ohio border counties with some sources including several Ohio counties and as far south & west as the Kentucky border and north into the extreme southwest of New York State. The Pittsburgh DMA includes the following counties: Pennsylvania counties: Allegheny Armstrong Beaver Butler Clarion Fayette Forest Greene Indiana Lawrence Venango Washington Westmoreland West Virginia counties: Monongalia Preston Maryland counties: Garrett References External links Pittsburgh, PA on American Radio Map (Radiomap.us) Pittsburgh