Where do I send N400?
You generally have two options for filing your Form N-400 with USCIS:
Online, or
By mail (paper).
For either options the applicant must create an online account with USCIS that allows them to check status as well as receive notifications. It is also an efficient way to respond to requests for additional documentation. Having an online account allows you to expedite information exchange without getting put back in the queue.
Online submission:
The applicant may submit his application on the USCIS website once he has set up the above mentioned personal account.
By Mail:
There are three different PO Boxes and addresses assigned for different pockets of states within the US. Refer to the table below to see which address may be applicable to you.
| If you live in: | Mail your form to: |
|---|---|
| Alaska Arizona California Colorado Micronesia Guam Hawaii Idaho Kansas Mariana Islands Montana North Dakota Nebraska Nevada Oregon Utah Washington Wyoming | For U.S. Postal Service (USPS): USCIS P.O. Box 21251 Phoenix, AZ 85036 For FedEx, UPS, and DHL deliveries: USCIS Attn: N-400 1820 E. Skyharbor Circle S Suite 100 Phoenix, AZ 85034 |
| Alabama Arkansas Connecticut District. Of Columbia Delaware Florida Georgia Kentucky Louisiana Massachusetts Maryland Maine Mississippi North Carolina New Hampshire New Jersey New Mexico New York Oklahoma Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Virginia Virgin Islands Vermont West Virginia | For U.S. Postal Service (USPS): USCIS P.O. Box 660060 Dallas, TX 75266 For FedEx, UPS, and DHL deliveries: USCIS Attn: N-400 2501 S State Hwy 121 Business Suite 400 Lewisville, TX 75067 |
| Illinois Indiana Wisconsin Iowa Michigan Minnesota Ohio Missouri Pennsylvania | For U.S. Postal Service (USPS): USCIS P.O. Box 4380 Chicago, IL 60680-4380 For FedEx, UPS, and DHL deliveries: USCIS Attn: N-400 131 S. Dearborn, 3rd Floor Chicago, IL 60603-5517 |
Military Members
If you are applying based on being a current or former member of the military; a spouse of a current member of the military; or a spouse, parent or child of a deceased member of the military, you may file your Form N-400 online or by mail. If you choose to file by mail, send your application to the location listed below:
For U.S. Postal Service (USPS):
USCIS
P.O. Box 4446
Chicago, IL 60680-4446
For FedEx, UPS, or DHL deliveries:
USCIS
Attn: Military N-400
131 S. Dearborn, 3rd Floor
Chicago, IL 60603-5517
If you submit Form N-400 on paper, you will receive a USCIS Account Acceptance Notice in the mail with instructions on how to create an online account to track and manage your case. USCIS will process your application even if you do not create an online account, but we encourage you to create and access your online account.