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Form N-400 - Application for Naturalization 

Form N-400 Summary
PurposeUse this form to apply for United States Citizenship.
Size 21 Pages + Instructions
Edition Date 09/13/13. (USCIS will accept editions dated 03/22/12; 06/17/11; 01/18/11; 11/23/10; 04/05/10; 01/15/10 and 01/22/09 until Friday, May 2, 2014. Starting Monday, May 5, 2014, we will only accept the 09/13/13 edition.)
Where to File 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, Territory of Guam, or the Commonwealth of Northern Mariana Islands, send your application to the USCIS Lockbox Facility at:

USCIS Phoenix Lockbox

U.S. Postal Service deliveries:

P.O. Box 21251,
Phoenix, AZ 85036

Express Mail and Courier deliveries:

Attn: N-400
1820 E Skyharbor Circle S,
Suite 100,
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 Dallas Lockbox

U.S. Postal Service deliveries:

P.O. Box 660060,
Dallas, TX 75266

Express Mail and Courier deliveries:

Attn: N-400
2501 S State Hwy 121,
Suite 400,
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

Express Mail and Courier deliveries:

Nebraska Service Center
850 S Street
Lincoln, NE 68508
Filing Fee$595

An additional fee for fingerprinting may be required.

Fees are accepted in the form of money order, personal check or cashiers check only.
  Download Form N-400 only
  Download Form N-400 Instructions only

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