The city of Tucson lies north of the Santa Cruz Valley between the Tucson and Santa Catalina Mountains in arid southeastern Arizona. Located at the junction of I-10 and I-19, Tucson is the gateway to the interior of Mexico as well as a stop along transcontinental I-10 between Los Angeles and El Paso, Texas.

Home to 542,629 people, the city sits at an elevation of 2,389 feet above sea level. While geographically spread over 241 square miles, the city is largely centered around the University of Arizona and Downtown.  With so much undeveloped land within its borders, Tucson will continue to rival Phoenix and other Valley of the Sun cities as among the fastest growing areas in the country.


Interstate 10

Interstate 10 is the main route across Tucson. Paralleling the Santa Cruz River southeast into the city, Interstate 10 skirts the western and southern edges of Downtown Tuscon before meeting I-19. Continuing southeast past Davis Monthan-Tucson Air Force Base, Interstate 10 leaves Tuscon south of Rincon Valley and north of the Empire Mountains en route to Benson and Las Cruces, New Mexico.


Interstate 19

Interstate 19 connects Tucson with Old Mexico via historic U.S. 89 and Nogales.


Oracle Road

Arizona State Route 77 follows U.S. 80-89 north of Tucson, leading from the Miracle Mile exit from Interstate 10 (Exit 255) to the Navajo Indian Reservation north of Holbrook.


Ajo-Tucson Highway

Arizona State Route 86 is the Ajo-Tucson Highway (Ajo Way within the city limits). It originates from SR 85 in Why and concludes at a SPUI (Exit 99) with Interstate 19. The route formerly extended east along Ajo Way from I-19 to S Sixth Avenue (former Business Loop I-19) in Tuscon.


Aviation Parkway

Arizona State Route 210 is Aviation Highway, a controlled access expressway or arterial between Broadway Boulevard near Downtown and Golf Links Road near Davis-Monthan Air Force Base.


Planned Interstate 710 – Kino Parkway

Tucson has a sordid history of canceled freeways, one of which is unconstructed Interstate 710. I-710 was to follow Kino Parkway from Interstate 10 north to  Aviation Parkway (SR 210) near the University of Arizona. Rather than constructing an Interstate standard freeway, Kino Parkway was built as an at-grade boulevard along the alignment of Campbell Avenue. Locally maintained, grade separations along Kino Parkway were added at E 22nd Street and SR 210.


Miracle Mile – Stone Avenue – 6th Avenue

Following the completion of Interstate 10 in Tucson, a business route was designated through Downtown Tucson via Miracle Mile (SR 77), Oracle Road, Stone Avenue and Sixth Avenue. This business route followed the route of Historic U.S. 80-89 from Miracle Mile south to I-10, and was decommissioned in the mid-1990s when the state remanded maintenance of the road to the city of Tucson.

Tucson Area Street Scenes

Stone Avenue
Stone Avenue lowers into a subway south between 6th Street and Toole Avenue north of Downtown Tucson. 05/24/03
Stone Avenue advances south into Downtown Tucson from the intersection with Franklin Street west and Toole Avenue east. 05/24/03
Southbound Stone Avenue at Pennington Street in the Tucson financial district. 05/24/03

Page updated April 28, 2022