United States House of Representatives elections, 1990 Washington Washington

| District | Incumbent | Party | Elected | Status_ | Opponent |
|---|---|---|---|---|---|
| Washington1 | John Miller | Republican | 1984 | Re-elected | John Miller (R) 52.0% Cynthia Sullivan (D) 48.0% |
| Washington3 | Jolene Unsoeld | Democratic | 1988 | Re-elected | Jolene Unsoeld (D) 53.8% Robert Williams (R) 46.2% |
| Washington4 | Sid Morrison | Republican | 1980 | Re-elected | Sid Morrison (R) 70.7% Ole H. Hougen (D) 29.3% |
| Washington5 | Tom Foley | Democratic | 1964 | Re-elected | Tom Foley (D) 68.8% Marlyn Derby (R) 31.2% |
| Washington6 | Norman D. Dicks | Democratic | 1976 | Re-elected | Norman D. Dicks (D) 61.4% Norman Mueller (R) 38.6% |