Encompassing 2,581 square miles, the 20th Senatorial District is slightly larger than the State of Delaware and ranks as the fifth largest Senate District in Pennsylvania. It includes 5 counties, 116 municipalities, and 22 school districts.;
Part of LUZERNE County consisting of the TOWNSHIPS of Conyngham, Dallas, Dennison, Dorrance, Exeter, Franklin, Hollenback, Hunlock, Jackson, Kingston, Lake, Lehman, Rice, Ross, Slocum, Union and Wright and the BOROUGHS of Courtdale, Dallas, Forty Fort, Harveys Lake, Kingston, Nuangola, Penn Lake Park, Pringle and Shickshinny; All of PIKE County; Part of SUSQUEHANNA County consisting of the TOWNSHIPS of Ararat, Auburn, Brooklyn, Clifford, Gibson, Great Bend, Harford, Harmony, Herrick, Jackson, Lathrop, Lenox, New Milford, Oakland, Springville and Thompson and the BOROUGHS of Forest City, Great Bend, Hallstead, Hop Bottom, Lanesboro, New Milford, Oakland, Susquehanna Depot, Thompson and Uniondale; All of WAYNE County and All of WYOMING County.
Total population: 247,288