Boundary Atlas

ZIP code 97018: Columbia City, OR

ZIP code 97018 is in Columbia City, in Columbia County, Oregon. It is in Oregon's 1st congressional district. Its state senate district is State Senate District 16; its state house district is State House District 31.

1,956residents (2020 Census)
0.8 sq miland area
1cities and towns
1congressional district
0voting precincts

See it on the mapAll of Oregon

City and county

City or townShare of ZIP residents
Columbia City100%

CountyShare of ZIP residents
Columbia County100%

Town or county subdivisionShare of ZIP residents
St. Helens CCD100%

Congressional district

Congressional districtShare of ZIP residents
Oregon's 1st congressional district (OR-01)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 16100%

State house districtShare of ZIP residents
State House District 31100%

Voting precincts

0 voting precincts overlap ZIP 97018. Map them, with each precinct's share of the ZIP's residents.

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Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:97018")

ZIP 97018 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.