WA-10 — 2018 U.S. House election
Recent presidential results, current district lines
congressional district2018 US House electionWA-10 · U.S. HouseHeckD+23.1
How it voted
Share of the 2018 vote
| Denny Heck (i) ✓Democrat | 61.5% | 166,215 |
|---|---|---|
| Joseph BrumblesRepublican | 38.5% | 103,860 |
D+60R+60
District boundary, filled by its own 2018 D-vs-R margin — precinct detail where available, over faint county context.
The boundary drawn is the current WA-10 (cd:120, the 2026 map); the 2018 election ran under that decade's own lines. The result shown is the certified 2018 contest.
Margin history
WA-10 across every cycle on record. Each year links to its district page.
Same ballot, 2018WA
Source. MIT Election Data + Science Lab — 2018 US House returns, party-classified by literal ballot party · results as certified for the 2018 contest; the boundary drawn and the presidential strip use the current district map (cd:120, the 2026 lines) — the election itself ran under earlier lines. Real returns — nothing estimated.