Effective immediately, the USCIS has annouced new filing locations for N-400 Applications for Naturalization and Citizenship. Depending on the State where you reside, the Applications are to be mailed to a new address in Dallas or Phoenix Arizona.
The new address in Dallas is:
USCIS
P.O Box 660060
Dallas, TX 75266
The new address in Phoenix is:
USCIS
P.O Box 21251
Phoenix, AZ 85036
To avoid delays in mail-forwading, send the application to the correct new address.
Applicants in the United States military will submit their applications to the Nebraska Service Center as was the case before, therefore no change here.