SSA Field Office

Fontana, CASocial Security Office

Fontana serves 11 ZIP codes — file an SSDI application, submit medical records, or update your benefit details here.

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Address, phone & hours

Your local SSA service center

As your local Social Security service center, the Fontana office manages a diverse range of federal benefits for 59,095 residents. While the catchment area skews toward retirement, with 69% of beneficiaries receiving retirement-worker benefits, the office remains a vital resource for the 6,300 local SSDI recipients. Across the 11 ZIP codes served, the office facilitates the distribution of $87 million in monthly benefits. Understanding this local mix is important, as the office processes a high volume of retirement-related inquiries alongside disability applications.

At the Fontana office, you can file your initial SSDI application, drop off required medical evidence, verify your identity, or update your direct deposit information. Note that this office does not make the final decision on your disability claim, as that responsibility lies with the state DDS. Additionally, this office does not conduct hearings, which are handled by a separate office. You should schedule an appointment in advance to minimize your wait time.

Who this office serves

59,095
Total beneficiaries
6,300
Disabled workers
40,935
Retired workers
11
ZIPs served

Beneficiaries in this service area receive an estimated $87,266k in Social Security benefits each month.

Before you visit

When you arrive at the Fontana office, bring a valid government-issued photo ID and a detailed 15-year work history. You should also provide a comprehensive list of all treating physicians, including their contact information and addresses, along with your most recent medical records and a list of current medications. If you have received any prior denial notices, bring those documents as well. An attorney can help you prepare these materials to ensure your visit is productive.

Many applicants experience delays because they submit incomplete work histories or fail to provide recent medical records from all relevant providers. Forgetting to mention mental health conditions or secondary physical impairments can also weaken your application. Avoid signing any forms until you have read them thoroughly and understand what you are authorizing. Ensuring your documentation is complete and accurate before you arrive can help prevent unnecessary processing hurdles.

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Should you bring an attorney?

The application stage is the foundation of your entire disability claim, yet many people navigate it alone. Evidence gathered during this initial phase defines the record for any future appeals. A qualified attorney can help you organize your medical evidence and ensure your application is submitted correctly the first time. You can request a free case review to understand how professional guidance might impact your specific situation.

Approval rates change with a lawyer

WITHOUT A LAWYER
baseline approval rate
Unrepresented claimants
WITH A LAWYER
~3×
higher approval rate
Represented claimants

Source: U.S. Government Accountability Office, GAO-18-37. The 3× gap is a population-wide average across all judges; individual outcomes vary.

If your SSDI claim moves to a hearing

About two-thirds of initial SSDI applications nationwide are denied. If yours is, your case moves to a hearing before an Administrative Law Judge at one of the regional hearing offices that handles appeals from Fontana. The Fontana field office holds your file at every appeal stage, but the substantive decisions happen further up the chain.

Frequently asked questions