State Highway 5, or SH 5, runs along the old route of U.S. Highway 75 at Howe into the city of Allen. SH 5 parallels US 75 along its length and runs alongside the former Houston and Texas Central rail line. SH 5 was created in 1959 when the new route of US 75 was established to the west. Historically, SH 5 extended into and through Plano and Richardson.
The current version of SH 5 was established in 1959 initially as a replacement for the former routing of U.S. Highway 75 from Richardson north to McKinney when US 75 was rebuilt further to the west. The route was extended north to Howe in 1967 to replace another portion of US 75 that had been upgraded on a new route just to the west. Between 1987 and 2003, the southern terminus was moved northward as portions of the highway were returned to local cities: First, ending at SH 190 in 1987, then ending at the northern Plano city limit in 1988, and finally ending at the Exchange Parkway in Allen in 2003.
Texas District 5 of the United States House of Representatives is a Congressional district that serves an area that includes the southeast portion of Dallas County including Mesquite plus a number of smaller counties south and east of Dallas including Anderson, Cherokee, Henderson and Kaufman counties. As of the 2000 census, the 5th district represents 651,620 people. The current Representative from District 5 is Jeb Hensarling.
After the 2012 redistricting process, the eastern half of Wood County was removed, and there were slight changes to the district in Dallas County.
U.S. Congressional District borders are periodically redrawn, therefore some District Residence locations may no longer be in the 5th District.