Boundary Atlas

ZIP code 97403: Eugene, OR

ZIP code 97403 is in Eugene (91% of residents) and Springfield (2.1%), in Lane County, Oregon. 7.1% of its residents live outside city limits. It is in Oregon's 4th congressional district. Its state senate district is State Senate District 4; its state house districts are State House District 8 (91%) and State House District 7 (9.0%).

15,275residents (2020 Census)
4.2 sq miland area
2cities and towns
1congressional district
6voting precincts

See it on the mapAll of Oregon

City and county

City or townShare of ZIP residents
Eugene91%
Springfield2.1%

CountyShare of ZIP residents
Lane County100%

Town or county subdivisionShare of ZIP residents
Eugene-Springfield CCD100%

Congressional district

Congressional districtShare of ZIP residents
Oregon's 4th congressional district (OR-04)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 4100%

State house districtShare of ZIP residents
State House District 891%
State House District 79.0%

Voting precincts

6 voting precincts overlap ZIP 97403. 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:97403")

ZIP 97403 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.