If you currently reside in Alaska, Arizona, California, Colorado, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, North Dakota, Ohio, Oregon, South Dakota, Utah, Washington, Wisconsin, Wyoming, Guam or the Commonwealth of the Northern Mariana Islands, send your application to the USCIS Lockbox Facility at:
USCIS
P.O. Box 21251
Phoenix, AZ 85036
For express/courier deliveries, use:
USCIS
Attn: N-400
1820 E Skyharbor Cicle S, Floor 1
Phoenix, AZ 85034
If you reside in Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Mississippi, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Vermont, Virginia, West Virginia, Puerto Rico or the U.S. Virgin Islands, send your application to the USCIS Lockbox Facility at:
USCIS
P.O. Box 299026
Lewisville, TX 75029
For express/courier deliveries, use:
USCIS
Attn: N-400
2501 S State Hwy 121, Bldg. #4
Lewisville, TX 75067
All naturalization applicants filing under the military provisions, section 328 or 329, should file their application at the Nebraska Service Center regardless of geographic location or jurisdiction. Please send your application to:
Nebraska Service Center
P.O. Box 87426
Lincoln, NE 68501-7426
For express/courier deliveries, use:
Nebraska Service Center
850 S Street
Lincoln, NE 68508
Please note: You will need Adobe Reader version 8 or higher to use this form. You can download the latest version of Adobe Reader without cost at the Related Link "Adobe Reader"
Please note: A Guide to Naturalization (Form M-476) provides important information about citizenship eligibility requirements and processing procedures. The Form N-400 application instructions often refer to information in the Guide. Therefore you should read the Guide carefully before filing this form. You may view and print the Guide from the Related Link on this page.
This version of the N-400, Application for Naturalization, is available below in two files - the instructions and the form itself.
We recommend that you download the form directly to your local computer, rather than fill it out through your web browser. Using a Windows PC, "right-click" on the link to the fillable form and select "Save Link As" (in Netscape) or "Save Target As" (in Internet Explorer) and work from the copy you save to your hard drive.
Note on Filing Fee:
Fees are accepted in the form of money order, personal check or cashiers check only. Checks should be made payable to Department of Homeland Security or U.S. Citizenship and Immigration Services.
This page can be found at http://www.uscis.gov/n-400
