Lake Oswego, Oregon
Lake Oswego is a city in Clackamas County (94% of residents) and Multnomah County (6.4%), Oregon, with 40,838 residents in 2020. It spans 2 congressional districts: OR-05 (91%) and OR-06 (9.0%). It spans 2 state house districts. Its state senate district is State Senate District 19.
County
| County | Share of residents |
|---|---|
| Clackamas County | 94% |
| Multnomah County | 6.4% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Oregon's 5th congressional district (OR-05) | 91% |
| Oregon's 6th congressional district (OR-06) | 9.0% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Joe Buck | 503-635-0270 | citywide |
| U.S. Representative (OR-05) | Janelle S. Bynum (D) | 202-225-5711 | 91% |
| U.S. Representative (OR-06) | Andrea Salinas (D) | 202-225-5643 | 9.0% |
| 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 19) | Rob Wagner (Democratic) | 100% | |
| State Representative (State House District 38) | Daniel Nguyen (Democratic) | 91% | |
| State Representative (State House District 37) | Jules Walters (Democratic) | 9.0% |
Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Lake Oswego website: https://www.ci.oswego.or.us/
- Lake Oswego laws: search for the Lake Oswego, Oregon code of ordinances
- Clackamas County website: http://www.clackamas.us
- Clackamas County laws: search for the Clackamas 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 19 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 38 | 91% |
| State House District 37 | 9.0% |
ZIP codes
Percentages mark ZIPs only partly in Lake Oswego: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Lake Oswego'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:4140550")
Lake Oswego here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.