The Hawks wrapped up second place in the 2A Greater St. Helens League with the win.
Hayden Hall had 13 points, six rebounds and three assists for Hockinson.
Hall made three 3-pointers on three consecutive possessions in the third quarter to turn a one-possession game into a 10-point lead.
Justin Schauer had 11 points and five rebounds for Hockinson.
Aaron Deister led Washougal scorers with 12 points.
HOCKINSON 55, WASHOUGAL 42
WASHOUGAL — Isaac Bischoff 10, Aaron Deister 12, Michael McElroy 5, Mustapha Bah 5, David Crowley 6, Karsten Short 1, Trent Stauffer 0, Austin Tran 1, Nate Adams 0, Jaden Jantzer 2. Totals 15 (1) 11-19 42.
HOCKINSON — Beau Sparks 2, Everett Klodt 0, Abe Weiss 6, Wyatt Yearout 5, Doug Macdonald 9, Spencer Klug 7, Cole Kirkpatrick 0, Justin Schauer 11, Alan Haagen 0, Jess Krahn 2, Hayden Hall 13. Totals 19 (7) 10-16 55.