Boundary Atlas

ZIP code 04473: Orono, ME

ZIP code 04473 is in Orono (88% of residents), in Penobscot County, Maine. 12% of its residents live outside city limits. It is in Maine's 2nd congressional district. Its state senate district is State Senate District 8; its state house districts are State House District 25 (68%) and State House District 24 (32%).

8,070residents (2020 Census)
17.3 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of Maine

City and county

City or townShare of ZIP residents
Orono88%

CountyShare of ZIP residents
Penobscot County100%

Town or county subdivisionShare of ZIP residents
Orono town100%

Congressional district

Congressional districtShare of ZIP residents
Maine's 2nd congressional district (ME-02)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 8100%

State house districtShare of ZIP residents
State House District 2568%
State House District 2432%

Voting precincts

3 voting precincts overlap ZIP 04473. 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:04473")

ZIP 04473 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.