ZIP Codes the Casa Grande Office Serves
SSA assigns 19 ZIP codes to this office. If yours is listed, this is the office to use:
85121851228512385128851318513285138851398514185145851478517285191851938519485337856188562385631
From SSA's Office Locator, looked up by ZIP code on October 1, 2026.
Other Social Security Offices Near Casa Grande
Straight-line distance between office addresses (U.S. Census Bureau geocoder).
Casa Grande Social Security Office: Common Questions
What Are the Hours of the Casa Grande Social Security Office?
Monday to Friday, 9:00 AM to 4:00 PM, according to SSA's office data (updated March 9, 2026). Offices are closed on weekends and federal holidays. Check SSA's office closings page before you go.
Which ZIP Codes Does the Casa Grande Social Security Office Serve?
SSA's Office Locator assigns 19 ZIP codes to this office: 85121, 85122, 85123, 85128, 85131, 85132, 85138, 85139, 85141, 85145, 85147, 85172, 85191, 85193, 85194, 85337, 85618, 85623 and 85631. SSA assigns offices by ZIP code, so if yours is listed, this is your office.
What Is the Phone Number for the Casa Grande Social Security Office?
SSA lists (877) 405-0403 for this office and (833) 950-3387 as its fax number. SSA's national number is 1-800-772-1213.
Where Is the Casa Grande Social Security Office?
1637 E Monument Plaza Cir, Suite 2, Casa Grande, AZ 85122.
What Is the Closest Other Social Security Office to Casa Grande?
The Mesa Social Security Office in Mesa, AZ is about 35 miles away, phone (866) 964-1716. The next closest is Apache Junction Social Security Office, about 38 miles away.