Boundary Atlas

ZIP code 73742: Hennessey, OK

ZIP code 73742 is in Hennessey (55% of residents), in Kingfisher County, Oklahoma. 45% of its residents live outside city limits. It is in Oklahoma's 3rd congressional district. Its state senate districts are State Senate District 20 (84%) and State Senate District 26 (16%); its state house district is State House District 59.

3,909residents (2020 Census)
218.3 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of Oklahoma

City and county

City or townShare of ZIP residents
Hennessey55%

CountyShare of ZIP residents
Kingfisher County100%

Town or county subdivisionShare of ZIP residents
Hennessey CCD100%

Congressional district

Congressional districtShare of ZIP residents
Oklahoma's 3rd congressional district (OK-03)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (OK-03)Frank D. Lucas (R)202-225-5565100%
U.S. SenatorAlan Armstrong (R)202-224-4721statewide
U.S. SenatorJames Lankford (R)202-224-5754 · contact formstatewide
State Senator (State Senate District 20)Chuck Hall (R)84%
State Senator (State Senate District 26)Darcy Jech (R)16%
State Representative (State House District 59)Mike Dobrinski (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 2084%
State Senate District 2616%

State house districtShare of ZIP residents
State House District 59100%

Voting precincts

4 voting precincts overlap ZIP 73742. Map them, with each precinct's share of the ZIP's residents.

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ZIP 73742 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.