Ajo is not a city, but an unincorporated place in Pima County. It's covered by the more general Pima County Comprehensive Plan. In 2001, the University of Arizona Community Planning and Design Workshop published a document called "Ajo Vision: Ajo community comprehensive plan". Pima County Public Library has a copy at its Ajo branch. Supervisor Sharon Bronson also has copies which can be obtained from her office. Her contact information is located at http://www.pima.gov/bos/dist3/Contact.html.
There is also a zoning plan available for Ajo from http://www.pimaxpress.com/Planning/plan4a.htm.
The Pima County Economic Development Department has put a new study of the commercial sector online at:
Ajo Chamber of Commerce
Silvia Howard - Executive Director
400 Taladro St.
Ajo, AZ 85321
Phone (520) 387-7742
Fax (520) 387-3641
"Sharon Bronson - Pima County Board of Supervisors." Pima County Government Arizona | Tucson, Marana, Ajo, Oro Valley, Sahuarita, Three Points, Arivaca.http://www.pima.gov/bos/dist3/Contact.html (accessed September 30, 2011).
"Pima County Development Services - Publications Price List." Pima County Development Services - Pimaxpress. http://www.pimaxpress.com/Planning/plan4a.htm (accessed September 30, 2011).