I m from California and I mailed my application for renewal to:
USCIS
P.O.Box 20700
Phoenix, AZ 85036-0700
It arrived in two days and now im awaiting my notice for my biometric appointment.
__________________
Application Received: Nov. 30th, 2012
WAC Service Center.
Biometrics: December 27th, 2012.
Approved: March 11th, 2013
SSN: 3/18/2013
CA ID: 3/26/2013