Sonoita - Elgin Chamber of Commerce
- Includes member listing, business map, membership information and events calendar.
- http://www.sonoitaelginchamber.org/

National Association of Counties - Profile of Santa Cruz County
- Provides a list of elected officials, cities within the county, census details, and contact details for the county court house.
- http://www.naco.org/Template.cfm?Section=Find_a_County&Template=/cffiles/counties/county.cfm&id=4023

Santa Cruz County
- Official site offers community profiles and links, history, attractions, departments, and job openings.
- http://www.co.santa-cruz.az.us/

Nogales-Santa Cruz County Chamber of Commerce
- Guide to Santa Cruz County business and official online Visitor's Guide to Santa Cruz County with tourist information, including history, recreation, points of interest and information on lodging and dining.
- http://www.nogaleschamber.com/