What is the USCIS Lockbox filing location?

USCIS Lockbox facilities are centralized processing centers where initial immigration applications and petitions are received, screened for completeness, and receipted. Rather than sending your application to a local field office, you must mail your documents to the specific Lockbox address designated for your form type and your state of residence.

It is critical to verify the correct filing address on the official USCIS website before mailing your application. Using an incorrect address can result in your package being returned, which causes significant delays. The Lockbox staff performs a 'intake' process: they ensure the form is signed, the correct fee is included, and the basics of the filing are met. Once accepted, they issue a receipt notice (Form I-797) and forward the application to the appropriate service center or field office for adjudication. Always use a trackable shipping service when sending documents to a Lockbox.