Texas State Highway 78

State Highway 78
SH 78, mainline in red, business routes in blue
Route information
Maintained by TxDOT
Length	90.83 mi[1] (146.18 km)
Existed	1923–present
Major junctions
South end	I-30 in Dallas
Major intersections	I-635 in Garland US 380 in Farmersville US 69 in Leonard US 82 in Bonham
North end	SH-78 at Texas–Oklahoma state line
Location
Country	United States
State	Texas
Highway system
Highways in Texas Interstate US State Toll Loops Spurs FM/RM Park Rec
← SH 77 → US 79

State Highway 78 (SH 78) is a state highway that follows surface roads in a predominantly southwest-to-northeast direction in the Dallas area before traveling 90 miles (145 km) north-northeast to the Oklahoma State border.