Katrina Bagley received her bachelor's degree from Southern Virginia University, double majoring in English and Politics and graduating magna cum laude. Ms. Bagley earned her juris doctorate from the J. Reuben Clark Law School at Brigham Young University, graduating cum laude.

While at BYU, Ms. Bagley was lead editor for the Journal of Public Law, a member of the Native American Moot Court Team, and a board member of Women in Law. Ms. Bagley also clerked at Vivint, Inc. throughout her second and third years of law school.

Ms. Bagley is licensed to practice law in Arizona and New Mexico, and practiced in Gallup, New Mexico prior to joining Allen, Shepherd & Lewis, P.A.