Maricopa County Share: Government Offices and Programs Maricopa County Visit Website 301 W Jefferson St., 10th Fl. Phoenix, AZ 85003 (602) 372-1524 (602) 506-3063 (fax) About Map About Contact for Maricopa County Quarterly Reports. What's Nearby? Distance: 5 10 15 20 25 50 mi.
