Of the approximately 156 places in the class, the majority are Colorado residents. Thereafter, preference is given to applicants from certain western states participating in the WICHE program and to applicants from other states who have high GPAs and MCAT scores.
From UCHSC website:
http://www.uchsc.edu/som/admissions/selfactors.htm
The following schools are in the WICHE program for Montana and Wyoming residents:
University of Arizona
Loma Linda University
Stanford University
UCB-UCSF Joint Medical Program
University of California, Davis
University of California, Irvine
University of California, Los Angeles
University of California, San Diego
University of California, San Francisco
University of Southern California
University of Colorado Health Sciences Center
University of Hawaii
University of Nevada
University of New Mexico (Accepts EDP only)
University of North Dakota
Oregon Health & Science University
University of Utah
http://www.wiche.edu/sep/PSEP/medi.asp
I don't know about UWash's policy, but I learned about WICHE, and that's what I was talking about. Still, though, even with WICHE, the majority of Colorado's class is Colorado residents. I don't know about the other schools.