USCIS Update: Change of Filing Location for Form N-400

USCIS Update: Change of Filing Location for Form N-400

WASHINGTON - U.S. Citizenship and Immigration Services (USCIS) today announced revised addresses for applicants filing an Application for Naturalization (Form N-400) at USCIS Lockbox facilities in Phoenix and Dallas. This filing address change takes effect immediately.

Applicants who previously filed their applications at the Lewisville Post Office (P.O.) box will now file their applications at a P.O. Box in Dallas. See address below. In addition, the table below includes a change to the USCIS Phoenix Lockbox address. Starting immediately, applicants filing Form N-400 at the USCIS Dallas or Phoenix Lockbox must submit the application and all supporting documents and fees to the following addresses, based on where they live:


If you live in:
Mail your application to the:

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
USCIS Phoenix Lockbox

U.S. Postal Service deliveries:

USCIS
PO Box 21251
Phoenix, AZ 85036

Express Mail and Courier deliveries:

USCIS
ATTN: N-400
1820 E. Skyharbor Circle S
Suite 100
Phoenix, AZ 85034

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, Tennesee, Texas, Vermont, Virginia, West Virginia, Puerto Rico, or the U.S. Virgin Islands
USCIS Dallas Lockbox

U.S. Postal Service deliveries:

USCIS
P.O. Box 660060
Dallas, TX 75266

Express Mail and Courier deliveries:

USCIS
ATTN: N-400
2501 S. State Hwy. 121 Business
Suite 400
Lewisville, TX 75067


USCIS: USCIS Update: Change of Filing Location for Form N-400