Direct Filing Addresses for Form N-400, Application for Naturalization
When you submit Form N-400 on paper, we will mail you a USCIS Account Acceptance Notice with instructions on how to create an online account to track and manage your case. We will process your application even if you do not create an online account, but we encourage you to create and access your online account. We will continue to mail you copies of notifications about your case.
| If you are applying based on: | Mail your form to: |
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USCIS Chicago Lockbox U.S. Postal Service (USPS): USCIS FedEx, UPS, or DHL deliveries: USCIS |
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See the “Advance Parole Document for current and former service members outside of the U.S.” section of our Direct Filing Addresses for Form I-131, Application for Travel Document page. |
| If you live in: | Mail your form to: |
|---|---|
| Connecticut Delaware District of Columbia Florida Georgia Maine Maryland Massachusetts New Hampshire New Jersey New York North Carolina Pennsylvania Rhode Island South Carolina Vermont Virginia West Virginia |
USCIS Elgin Lockbox U.S. Postal Service (USPS): |
| Alabama Alaska American Samoa Arizona Armed Forces Americas Armed Forces Europe Armed Forces Pacific California Colorado Commonwealth of the Northern Mariana Islands Guam Hawaii Idaho Kansas Kentucky Marshall Islands Micronesia Minnesota Mississippi Montana Nebraska Nevada New Mexico North Dakota Oregon Palau Puerto Rico South Dakota Tennessee U.S. Virgin Islands Utah Washington Wyoming |
USCIS Phoenix Lockbox U.S. Postal Service (USPS): USCIS FedEx, UPS, and DHL deliveries: USCIS |
| Arkansas Louisiana Oklahoma Texas |
USCIS Dallas Lockbox U.S. Postal Service (USPS): USCIS FedEx, UPS, and DHL deliveries: USCIS |
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Illinois |
USCIS Chicago Lockbox U.S. Postal Service (USPS): USCIS FedEx, UPS, and DHL deliveries: USCIS |