Boundary Atlas

ZIP code 74531: Calvin, OK

ZIP code 74531 is in Calvin (33% of residents) and Gerty (6.5%), in Hughes County (98%) and Coal County (1.7%), Oklahoma. 61% of its residents live outside city limits. It is in Oklahoma's 2nd congressional district. Its state senate districts are State Senate District 13 (98%) and State Senate District 14 (1.7%); its state house district is State House District 18.

949residents (2020 Census)
102.9 sq miland area
2cities and towns
1congressional district
4voting precincts

See it on the mapAll of Oklahoma

City and county

City or townShare of ZIP residents
Calvin33%
Gerty6.5%

CountyShare of ZIP residents
Hughes County98%
Coal County1.7%

Town or county subdivisionShare of ZIP residents
South Hughes CCD89%
Holdenville CCD8.8%
East Coal CCD1.2%
West Coal CCD0.5%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (OK-02)Josh Brecheen (R)202-225-2701100%
U.S. SenatorAlan Armstrong (R)202-224-4721statewide
U.S. SenatorJames Lankford (R)202-224-5754 · contact formstatewide
State Senator (State Senate District 13)Jonathan Wingard (R)98%
State Senator (State Senate District 14)Jerry Alvord (R)1.7%
State Representative (State House District 18)David Smith (R)100%

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1398%
State Senate District 141.7%

State house districtShare of ZIP residents
State House District 18100%

Voting precincts

4 voting precincts overlap ZIP 74531. 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:74531")

ZIP 74531 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.