Send your N-400 application and supporting documents to the Service Center having jurisdiction over your place of residence.
If you live in AZ, CA, HI, NV, Territory of Guam, or the Commonwealth of the Northern Mariana Islands, send your N-400 application to:
California Service Center
PO Box 10400
Laguna Niguel, CA 92607-1040
If you live in AK, CO, ID, IL, IN, IA, KS, MI, MO, MN, MT, NE, ND, OH, OR, SD, UT, WA, WI or WY, send your N-400 application to:
Nebraska Service Center
PO Box 87400
Lincoln, NE 68501-7400
If you live in AL, AR, FL, GA, KY, LA, MS, NM, NC, OK, SC, TN or TX, send your N-400 application to:
Texas Service Center
PO Box 851204
Mesquite, TX 75185-1204
If you live in CT, DE, District of Columbia, ME, MD, MA, NH, NJ, NY, PA, RI, VT, VA, WV, Commonwealth of Puerto Rico, or the U.S. Virgin Islands, send your N-400 application to:
Vermont Service Center
75 Lower Welden St
St. Albans, VT 05479-9400
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