Cambus is a zero-fare service open to the general public, and provides approximately 3,000,000 rides per year.

The main office is located on Evashevski Drive, north Kinnick Stadium, called the West Campus Transportation Center.

Cambus moved operations to this newer building, shared with the Parking & Transportation department, on November 16, 2012.

Most Liberal Arts and Sciences classes take place on the east side of the river; thus the purpose of the new bus service was to facilitate easier transportation between the west-side dormitories and the east-side classrooms.

"Cambus" was the name eventually chosen after Cambuskenneth, and the winner, Larry Page, was awarded a free pizza.

Cambus also acquired a trailer, which was used as their main office; this was located in the Hancher Auditorium parking lot.

Following a recommendation from the Iowa City Area Transit Study (ICATS), Cambus began using route numbers in July 2021.

[10] In accordance with the Americans with Disabilities Act (ADA), Cambus provides paratransit service called the Bionic Bus for University staff, faculty, and students.