Recently, because of a change in enrollment accounting by the
Washington Interscholastic Activities Association, Kennewick High, along with
Southridge, was reclassified as a 3A school. As a result, the Columbia Basin Big 9 Conference (which consisted of 11 schools), was reconfigured into the Mid Columbia Conference. The new conference now consists of 8 schools; four 3A and four 4A. Kennewick High is in the 3A division, along with
Southridge and
Hanford High School. The 4A division consists of
Kamiakin,
Richland High School,
Pasco High School,
Walla Walla High School, and
Chiawana High School. Kennewick High School has a traditional rivalry with Kamiakin High School, however in recent years both schools have become bigger rivals with Southridge High School than with each other. Neil F Lampson Stadium, their home football stadium, has a capacity of 6,800 for football games.
State championships Source: • Baseball: 2008 • Girls basketball: 2000 • Boys cross country: 1978, 1979, 1980 • Boys gymnastics: 1969 • Boys wrestling: 1970, 1971, 1982 ==Notable alumni==