The defendants say drug addictions fueled mail thefts and forgeries as they took over victim credit accounts.
The Daily Herald reports the three who were sentenced Wednesday all were working without serious criminal records until a few years ago.
A 34-year-old Navy veteran, David J. King of Lake Stevens, was sentenced to more than five years.
A 32-year-old University of Washington economics graduate, Vikram Chorpa, of Renton was sentenced to seven years.
Shawn Shulze, 31, of Everett was giving a nine-year sentence because he had a previous identity theft conviction.