COVID-19 UPDATE: Declaration of Emergency. County operations remain open. Call first, appointments must be made. See website for information: Susqco.com Covid-19 page. Susquehanna County is a county located in the U.S. state of Pennsylvania; county seat is Montrose. Municipalities include: Apolacon Township, Ararat Township, Auburn Township, Bridgewater Township, Brooklyn Township, Choconut Township, Clifford Township, Dimock Township, Forest City Borough, Forest Lake Township, Franklin Township, Friendsville Borough, Gibson Township, Great Bend Borough, Great Bend Township, Hallstead Borough, Harford Township, Harmony Township, Herrick Township, Hop Bottom Borough, ackson Township, Jessup Township, Lanesboro Borough, Lathrop Township, Lenox Township, Liberty Township, Little Meadows Borough, Middletown Township, Montrose Borough, New Milford Borough, New Milford Township, Oakland Borough, Oakland Township, Rush Township, Silver Lake Township, Springville Township, Susquehanna Depot Boroug