| Election Name: | Washington House of Representatives elections, 2018 |
| Country: | Washington |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2016 Washington House of Representatives election |
| Previous Year: | 2016 |
| Next Election: | 2020 Washington House of Representatives election |
| Next Year: | 2020 |
| Seats For Election: | All 98 seats in the Washington House of Representatives |
| Majority Seats: | 50 |
| Election Date: | November 6, 2018 |
| Image1: | Frank Chopp.jpg |
| Image1 Size: | 160x160px |
| Leader1: | Frank Chopp |
| Party1: | Washington Democratic Party |
| Leaders Seat1: | 43rd-Seattle |
| Last Election1: | 50 |
| Seats1: | 57 |
| Seat Change1: | 7 |
| Popular Vote1: | 3,447,724 |
| Percentage1: | 59.3% |
| Swing1: | 5.0% |
| Leader2: | J.T. Wilcox |
| Party2: | Washington Republican Party |
| Leaders Seat2: | 2nd-Roy |
| Last Election2: | 48 |
| Seats2: | 41 |
| Seat Change2: | 7 |
| Popular Vote2: | 2,214,282 |
| Percentage2: | 38.1% |
| Swing2: | 5.0% |
| Map Size: | 300px |
| Speaker of the House | |
| Before Election: | Frank Chopp |
| Before Party: | Democratic |
| After Election: | Frank Chopp |
| After Party: | Democratic |
The 2018 Washington House of Representatives elections took place as part of the biennial United States elections. Washington state voters elected state representatives in all 98 seats of the House, electing 2 state representatives in each of the 49 Washington state legislative districts. State representatives serve two-year terms in the Washington House of Representatives. A statewide map of Washington's state legislative districts is provided by the Washington State Legislature here, .
A top two primary election on August 7, 2018, determined which candidates appeared on the November 6 general election ballot. Each candidate is allowed to write in their party preference so that it appears as they desire on the ballot.[1]
Democrats increased their 50–48 majority in the 2016 elections by flipping seven seats to hold 57 seats to Republicans' 41.
Only three districts, the 10th, 19th, and 42nd, elected their two representatives from different parties.
| Washington State House Elections, 2018Primary election — August 7, 2018 | |||||||
|---|---|---|---|---|---|---|---|
| Party | Votes | Percentage | Candidates | Advancing to general | Seats contesting | ||
| Democratic | 1,959,523 | 60.25% | 110 | 97 | |||
| Republican | 1,196,960 | 36.80% | 92 | 76 | |||
| Independent | 72,673 | 2.23% | 19 | 6 | |||
| Libertarian | 23,352 | 0.72% | 5 | 3 | |||
| Totals | 3,252,508 | 100.00% | 226 | 182 | — | ||
| Washington State House Elections, 2018General election — November 6, 2018 | ||||||
|---|---|---|---|---|---|---|
| Party | Votes | Percentage | Seats | +/– | ||
| Democratic | 3,447,724 | 59.27% | 57 | 7 | ||
| Republican | 2,214,282 | 38.06% | 41 | 7 | ||
| Independent | 113,037 | 1.94% | 0 | |||
| Libertarian | 42,314 | 0.73% | 0 | |||
| Totals | 5,817,357 | 100.0% | 98 | — | ||
| align=center | District 1 • District 2 • District 3 • District 4 • District 5 • District 6 • District 7 • District 8 • District 9 • District 10 • District 11 • District 12 • District 13 • District 14 • District 15 • District 16 • District 17 • District 18 • District 19 • District 20 • District 21 • District 22 • District 23 • District 24 • District 25 • District 26 • District 27 • District 28 • District 29 • District 30 • District 31 • District 32 • District 33 • District 34 • District 35 • District 36 • District 37 • District 38 • District 39 • District 40 • District 41 • District 42 • District 43 • District 44 • District 45 • District 46 • District 47 • District 48 • District 49 |