Pennsylvania Route 24

Pennsylvania Route 24
Route information
Maintained by PennDOT
Length	28.352 mi[1] (45.628 km)
Existed	1926–present
Major junctions
South end	MD 23 near Stewartstown
Major intersections	PA 851 in Stewartstown PA 216 in Winterstown PA 74 in Red Lion PA 624 in Red Lion PA 124 in East York PA 462 in East York US 30 in East York
North end	PA 921 in Mount Wolf
Location
Country	United States
State	Pennsylvania
Counties	York
Highway system
Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 23 → PA 25

Pennsylvania Route 24 (PA 24) is a 29-mile-long (47 km) state highway located within central Pennsylvania in the York County area. Its southern terminus is at the Mason–Dixon Line near Stewartstown, where PA 24 continues into Maryland as Maryland Route 23 (MD 23). The northern terminus is at PA 921 in Mount Wolf. The route heads north from the state line through rural areas in southern York County, intersecting PA 851 in Stewartstown and PA 216 in Winterstown. PA 24 continues north to Red Lion, where it crosses PA 74 and intersects the south end of PA 624. The route runs through suburban areas to the east of York, crossing PA 124, PA 462, and U.S. Route 30 (US 30). PA 24 continues north through rural land and reaches its end in Mount Wolf.

PA 24 was designated in 1928 to run from the Maryland border south of Stewartstown north to US 111 (Old York Road) in New Market. The route ran north to Red Lion, where it followed PA 74 northwest to York before running north along US 111 to North York and continuing north to York Haven, west to Lewisberry, and north to New Market. In the 1950s, the north end of PA 24 was cut back to Interstate 83 (I-83)/US 111 southwest of New Market. In York, the route was split into one-way pairs in the downtown area while US 111 Alternate (US 111 Alt.) ran concurrent with PA 24 between York and I-83/US 111 in North York. In the 1960s, PA 24 was rerouted to head north from Red Lion to US 30 (now PA 462) and PA 250 east of York. The former alignment became PA 74 by itself between Red Lion and York, I-83 Business (I-83 Bus.) between York and I-83 in North York, PA 181 between PA 250 (now US 30) in North York and York Haven, PA 382 between York Haven and PA 114 near Bunches, and an extended PA 114 between Bunches and New Market. PA 24 was extended north to PA 921 in Mount Wolf in the 1970s, replacing the easternmost portion of PA 250.