Boundary Atlas

ZIP code 74331: Delaware County, OK

ZIP code 74331 is in Cleora (19% of residents), Afton (11%), Bernice (6.4%) and Copeland (3.3%), in Delaware County (79%), Ottawa County (20%) and Craig County (1.7%), Oklahoma. 61% of its residents live outside city limits. It is in Oklahoma's 2nd congressional district. Its state senate district is State Senate District 1; its state house districts are State House District 5 (78%), State House District 7 (21%) and State House District 6 (0.4%).

6,590residents (2020 Census)
124.1 sq miland area
5cities and towns
1congressional district
9voting precincts

See it on the mapAll of Oklahoma

City and county

City or townShare of ZIP residents
Cleora19%
Afton11%
Bernice6.4%
Copeland3.3%
Ketchum0.4%

CountyShare of ZIP residents
Delaware County79%
Ottawa County20%
Craig County1.7%

Town or county subdivisionShare of ZIP residents
Grove CCD79%
Afton-Fairland CCD20%
Vinita East CCD1.5%
Miami CCD0.2%
North Craig CCD0.2%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1100%

State house districtShare of ZIP residents
State House District 578%
State House District 721%
State House District 60.4%

Voting precincts

9 voting precincts overlap ZIP 74331. 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:74331")

ZIP 74331 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.