West Haven-Sylvan, Oregon
West Haven-Sylvan is a Census-designated place (an unincorporated community) in Washington County (99% of residents) and Multnomah County (1.0%), Oregon, with 9,299 residents in 2020. It is in Oregon's 1st congressional district. It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| Washington County | 99% |
| Multnomah County | 1.0% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Oregon's 1st congressional district (OR-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OR-01) | Suzanne Bonamici (D) | 202-225-0855 | 100% |
| U.S. Senator | Jeff Merkley (D) | 202-224-3753 · contact form | statewide |
| U.S. Senator | Ron Wyden (D) | 202-224-5244 · contact form | statewide |
| State Senator (State Senate District 14) | Kate Lieber (Democratic) | 51% | |
| State Senator (State Senate District 17) | Lisa Reynolds (Democratic) | 49% | |
| State Representative (State House District 27) | Ken Helm (Democratic) | 51% | |
| State Representative (State House District 33) | Shannon Isadore (Democratic) | 49% |
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- West Haven-Sylvan laws: search for the West Haven-Sylvan, Oregon code of ordinances
- Washington County website: https://www.washingtoncountyor.gov
- Washington County laws: search for the Washington County, Oregon code of ordinances
- Multnomah County website: http://www.co.multnomah.or.us
- Multnomah County laws: search for the Multnomah County, Oregon code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 14 | 51% |
| State Senate District 17 | 49% |
| State house district | Share of residents |
|---|---|
| State House District 27 | 51% |
| State House District 33 | 49% |
ZIP codes
Percentages mark ZIPs only partly in West Haven-Sylvan: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get West Haven-Sylvan's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:4180025")
West Haven-Sylvan here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.