Boundary Atlas

Milwaukie, Oregon

Milwaukie is a city in Clackamas County, Oregon, with 21,179 residents in 2020. It is in Oregon's 5th congressional district. It spans 2 state senate and 2 state house districts.

21,179residents (2020 Census)
5.0 sq miland area
2ZIP codes
1congressional district

County

CountyShare of residents
Clackamas County100%

Congressional district

Congressional districtShare of residents
Oregon's 5th congressional district (OR-05)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (OR-05)Janelle S. Bynum (D)202-225-5711100%
U.S. SenatorJeff Merkley (D)202-224-3753 · contact formstatewide
U.S. SenatorRon Wyden (D)202-224-5244 · contact formstatewide
State Senator (State Senate District 21)Kathleen Taylor (Democratic)93%
State Senator (State Senate District 20)Mark Meek (Democratic)7.4%
State Representative (State House District 41)Mark Gamba (Democratic)93%
State Representative (State House District 39)April Dobson (Democratic)7.4%

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

State legislative districts

State senate districtShare of residents
State Senate District 2193%
State Senate District 207.4%

State house districtShare of residents
State House District 4193%
State House District 397.4%

ZIP codes

Percentages mark ZIPs only partly in Milwaukie: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Milwaukie'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:4148650")

Milwaukie 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.