Of the 7 Washington incumbents, 6 were re-elected and 1 retired.
|Washington 1||Thomas Pelly||Republican||1952||Incumbent retired.
New member elected.
|? Joel Pritchard (Republican) 50.3%|
John Hempelmann (Democratic) 49.1%
Craig Honts (Socialist Workers) 0.7%
|Washington 2||Lloyd Meeds||Democratic||1964||Incumbent re-elected.||? Lloyd Meeds (Democratic) 60.4%|
Bill Reams (Republican) 39.6%
|Washington 3||Julia Butler Hansen||Democratic||1960||Incumbent re-elected.||? Julia Butler Hansen (Democratic) 66.3%|
R. C. McConkey (Republican) 33.7%
|Washington 4||Mike McCormack||Democratic||1970||Incumbent re-elected.||? Mike McCormack (Democratic) 52.1%|
Steward Bledsoe (Republican) 47.9%
|Washington 5||Tom Foley||Democratic||1964||Incumbent re-elected.||? Tom Foley (Democratic) 81.3%|
Clarice L. R. Privette (Republican) 18.7%
|Washington 6||Floyd Verne Hicks||Democratic||1964||Incumbent re-elected.||? Floyd Verne Hicks (Democratic) 72.1%|
Thomas C. Lowry (Republican) 27.9%
|Washington 7||Brock Adams||Democratic||1964||Incumbent re-elected.||? Brock Adams (Democratic) 87.6%|
J. J. 'Tiny' Freeman (Republican) 12.4%