Boundary Atlas

ZIP code 97138: Seaside, OR

ZIP code 97138 is in Seaside (64% of residents) and Gearhart (16%), in Clatsop County, Oregon. 20% of its residents live outside city limits. 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 32.

11,248residents (2020 Census)
146.0 sq miland area
2cities and towns
1congressional district
12voting precincts

See it on the mapAll of Oregon

City and county

City or townShare of ZIP residents
Seaside64%
Gearhart16%

CountyShare of ZIP residents
Clatsop County100%

Town or county subdivisionShare of ZIP residents
Seaside CCD69%
Astoria CCD24%
Jewell CCD7.4%

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 32100%

Voting precincts

12 voting precincts overlap ZIP 97138. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

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:97138")

ZIP 97138 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.