Boundary Atlas

ZIP code 74856: Mill Creek, OK

ZIP code 74856 is in Mill Creek (41% of residents), in Johnston County (88%) and Murray County (12%), Oklahoma. 59% of its residents live outside city limits. It is in Oklahoma's 2nd congressional district (88%) and Oklahoma's 4th congressional district (12%). Its state senate districts are State Senate District 14 (100%) and State Senate District 13 (0.4%); its state house district is State House District 22.

710residents (2020 Census)
188.2 sq miland area
1cities and towns
2congressional districts
6voting precincts

See it on the mapAll of Oklahoma

City and county

City or townShare of ZIP residents
Mill Creek41%

CountyShare of ZIP residents
Johnston County88%
Murray County12%

Town or county subdivisionShare of ZIP residents
West Johnston CCD78%
East Murray CCD12%
Tishomingo CCD10%

Congressional districts

Congressional districtShare of ZIP residents
Oklahoma's 2nd congressional district (OK-02)88%
Oklahoma's 4th congressional district (OK-04)12%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (OK-02)Josh Brecheen (R)202-225-270188%
U.S. Representative (OK-04)Tom Cole (R)202-225-616512%
U.S. SenatorAlan Armstrong (R)202-224-4721statewide
U.S. SenatorJames Lankford (R)202-224-5754 · contact formstatewide
State Senator (State Senate District 14)Jerry Alvord (R)100%
State Senator (State Senate District 13)Jonathan Wingard (R)0.4%
State Representative (State House District 22)Ryan Eaves (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 14100%
State Senate District 130.4%

State house districtShare of ZIP residents
State House District 22100%

Voting precincts

6 voting precincts overlap ZIP 74856. Map them, with each precinct's share of the ZIP's residents.

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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:74856")

ZIP 74856 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.