You are filing a K-1 petition for your fiancé(e) and you live in:
Alaska, Arizona, California, Colorado, Guam, Hawaii, Idaho, Nevada Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Montana, Nebraska, North Dakota, Ohio, Oregon, South Dakota, Utah, Washington, Wisconsin and Wyoming.
USCIS
California Service Center
P.O. Box 10130
Laguna Niguel, CA 92607-0130
For private couriers (non-USPS) deliveries:
USCIS
California Service Center 24000 Avila Road 2nd Floor, Room 2312 Laguna Niguel, CA 92677
You are filing a K-1 petition for your fiancé(e)and you live in:
Alabama, Arkansas, Connecticut, Delaware,Florida, Georgia, Kentucky, Louisiana, Maine, Maryland, Massachusetts,Mississippi, New Hampshire, New Jersey, New Mexico, New York,North Carolina, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, Oklahoma, Tennessee, Texas, Vermont, Virginia, U.S. Virgin Islands, West Virginia, and the District of Columbia.
US Postal Service and private courier deliveries:
USCIS
Vermont Service Center
Attn: I-129F
75 Lower Welden Street
St. Albans, VT 05479-0001
You are filing a K-1 petition for your fiancé(e) and you live outside the United States.
California Service Center or the Vermont Service Center, depending on your last place of residence in the U.S. (see above for filing location).
You are filing a K-3 petition for your spouse.
The Service Center where the underlying I-130 petition is currently pending. Use the address listed on your most recent receipt notice or transfer notice and include a copy of that notice with your Form I-129F.