From the City of Orange:

Registering online at www.DisasterAssistance.gov, is the quickest way to register for FEMA assistance. If you are unable to access the internet, you can also call at 1-800-621-3362. When you register for disaster assistance either online or by phone, you will need the following to complete your application:
• Social Security number
• Address of the location where the damage occurred (pre-disaster address)
• Current mailing address
• Current telephone number
• Insurance information
• Total household annual income
• Routing and account number for your checking or savings account (this allows FEMA to directly transfer disaster assistance funds into your bank account).
• A description of your disaster-caused damage and losses…