Incumbent state Sen. Lisa Boscola is unopposed in the race for the 18th District.

A Democrat, she is currently serving her fifth term in office.

The 18th District includes, in Lehigh County, boroughs of Catasauqua, Coplay, Emmaus and Fountain Hill, city of Bethlehem and townships of Hanover, Salisbury and Whitehall; and in Northampton County, boroughs of Freemansburg, Glendon, Hellertown, North Catasauqua, Northampton, Stockertown, Tatamy, West Easton and Wilson, cities of Bethlehem and Easton and townships of Bethlehem, Lower Saucon, Palmer and Williams.