The current physical address that you’ll need to use depends on where you plan to attend your future citizenship interview and exam appointment. The location of your appointment will be determined by your ZIP code. If, for instance, you attend college in San Antonio, Texas but live in Houston, you would need to provide your ZIP code in San Antonio if you want to attend your interview and exam at the USCIS field office in San Antonio or your ZIP code in Houston if you prefer the Houston field office. As for your mailing address, you must use the address where you’d like to receive all written correspondence from USCIS. Because these letters contain sensitive information, many people prefer to use their actual home address to receive their mail. In our example above, for instance, you may find it more comforting to receive these letters at your home address in Houston rather than at a temporary school address, especially if you’ll be leaving school within the next couple of years.