If you live 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, Guam or the Commonwealth of the Northern Mariana
Islands, file at:
USCIS Phoenix Lockbox
For U.S. Postal Service (USPS) deliveries:
USCIS
PO Box 21281
Phoenix, AZ 85036
For FedEx, UPS, and DHL deliveries:
USCIS
Attn: AOS
1820 E. Skyharbor Circle S
Suite 100
Phoenix, AZ 85034
官方网站这么写的,地址没有错啊