Montgomery County, colloquially referred to as Montco, is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population of the county was 856,553, making it the third-most populous county in Pennsylvania after Philadelphia and Allegheny counties. The county is part of the Southeast Pennsylvania region of the state.
AdEnjoy low prices on earth's biggest selection of books, electronics, home, apparel & more. Find deals and low prices on montgomery county pa map at Amazon.com