Interstate 35 in the context of "Texas Triangle"

Waco (/ˈweɪkoʊ/ WAY-koh) is a city in and the county seat of McLennan County, Texas, United States. It is situated along the Brazos River and I-35, halfway between Dallas and Austin. The city had a U.S. census estimated 2024 population of 146,608, making it the 24th-most populous city in the state. The Waco metropolitan statistical area consists of McLennan, Falls and Bosque counties, which had a 2020 population of 295,782. Bosque County was added to the Waco MSA in 2023. The 2024 U.S. census population estimate for the Waco metropolitan area was 307,123 residents.

Greater San Antonio, officially designated San Antonio–New Braunfels, is an eight-county metropolitan area in the U.S. state of Texas defined by the Office of Management and Budget (OMB). The metropolitan area straddles South Texas and Central Texas and is on the southwestern corner of the Texas Triangle. The official 2020 U.S. census showed the metropolitan area's population at 2,558,143—up from a reported 1,711,103 in 2000—making it the 24th largest metropolitan area in the United States. Downtown Austin and Downtown San Antonio are approximately 80 miles (129 km) apart, and both fall along the Interstate 35 corridor. This combined metropolitan region of San Antonio–Austin has approximately 5.1 million people.

San Antonio–New Braunfels is the third-largest metro area in Texas, after Dallas–Fort Worth–Arlington and Houston–The Woodlands–Sugar Land.

The term Cross Timbers, also known as Ecoregion 29, Central Oklahoma/Texas Plains, is used to describe a strip of land in the United States that runs from southeastern Kansas across Central Oklahoma to Central Texas. Made up of a mix of prairie, savanna, and woodland, it forms part of the boundary between the more heavily forested eastern country and the almost treeless Great Plains, and also marks the western habitat limit of many mammals and insects.

No major metropolitan areas lie wholly within the Cross Timbers, although roughly the western half of the Dallas-Fort Worth Metroplex does, including the cities of Fort Worth, Denton, Arlington, and Weatherford. The western suburbs of the Tulsa metropolitan area and the northeastern suburbs of the Oklahoma City metropolitan area also lie within this area. The main highways that cross the region are I-35 and I-35W going north to south (although they tend to skirt the Cross Timbers' eastern fringe south of Fort Worth), and both I-40 and I-44 going east to west. Numerous U.S. Highways also cross the area. I-35 means a portion of Austin and Travis County is also included in the Cross Timbers.

Webb County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 267,114. Its county seat and largest city is Laredo. The county was named after James Webb (1792–1856), who served as secretary of the treasury, secretary of state, and attorney general of the Republic of Texas, and later judge of the United States District Court following the admission of Texas to statehood. By area, Webb County is the largest county in South Texas, the largest county in Texas outside of the Trans-Pecos region, and the sixth-largest in the state. Webb County comprises the Laredo metropolitan area. Webb County is the only county in the United States to border three foreign states or provinces, sharing borders with Coahuila, Nuevo Leon, and Tamaulipas.

Webb County has a minority majority, with 95.2% of the population of the county identifying as Hispanic. This makes Webb the county with the second-highest proportion of Hispanic people in the continental United States after Starr County, and it has the highest proportion of Hispanic people among counties with a population over 100,000.

Interstate 535 (I-535) is a 2.78-mile-long (4.47 km) auxiliary Interstate Highway spur route of I-35 in the US states of Minnesota and Wisconsin. It is paired with U.S. Highway 53 (US 53) along its entire route. The Interstate was part of the original 1956 Interstate Highway System and was completed in 1971. Since then, weight limits have been added to the Blatnik Bridge that carries the highway over Saint Louis Bay between Superior, Wisconsin, and Duluth, Minnesota.

U.S. Route 61 or U.S. Highway 61 (U.S. 61) is a major United States highway that extends 1,400 miles (2,300 km) between New Orleans, Louisiana and the city of Wyoming, Minnesota. The highway generally follows the course of the Mississippi River and is designated the Great River Road for much of its route. As of 2004, the highway's northern terminus in Wyoming, Minnesota, is at an intersection with Interstate 35 (I-35). Until 1991, the highway extended north on what is now Minnesota State Highway 61 (MN 61) through Duluth to the Canada–U.S. border near Grand Portage, then continued to Thunder Bay, Canada, as Ontario Highway 61. Its southern terminus in New Orleans is at an intersection with U.S. Route 90 (US 90). The route was an important south–north connection in the days before the interstate highway system.

The highway is often called the Blues Highway because of its long history in blues music; part of the route lies on the Mississippi Blues Trail and is denoted by markers in Vicksburg and Tunica. It is also the subject of numerous musical works, with the route inspiring the album Highway 61 Revisited by Bob Dylan.