 According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.9%) is water.The county is intersected by the North Branch of the Susquehanna River, and drained by Tunkhannock, Mehoopany, and other large creeks.The land surface is generally hilly or mountainous, Mehoopany, Tunkhannock, Knob, and Bowman's mountains occupying a portion.