Boundary Atlas

ZIP code 45056: Oxford, OH

ZIP code 45056 is in Oxford (80% of residents) and Darrtown (1.8%), in Butler County, Ohio. 18% of its residents live outside city limits. It is in Ohio's 8th congressional district. Its state senate districts are State Senate District 4 (96%) and State Senate District 5 (4.0%); its state house districts are State House District 47 (96%) and State House District 40 (4.0%).

28,892residents (2020 Census)
74.7 sq miland area
2cities and towns
1congressional district
21voting precincts

See it on the mapAll of Ohio

City and county

City or townShare of ZIP residents
Oxford80%
Darrtown1.8%

CountyShare of ZIP residents
Butler County100%

Town or county subdivisionShare of ZIP residents
Oxford township87%
Reily township7.3%
Milford township4.0%
Hanover township1.3%

Congressional district

Congressional districtShare of ZIP residents
Ohio's 8th congressional district (OH-08)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (OH-08)Warren Davidson (R)202-225-6205100%
U.S. SenatorBernie Moreno (R)202-224-2315statewide
U.S. SenatorJon Husted (R)202-224-3353statewide
State Senator (State Senate District 4)George Lang (R)96%
State Senator (State Senate District 5)Steve Huffman (R)4.0%
State Representative (State House District 47)Diane Mullins (R)96%
State Representative (State House District 40)Rodney Creech (R)4.0%

Elected in 2024 under OH's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).

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 496%
State Senate District 54.0%

State house districtShare of ZIP residents
State House District 4796%
State House District 404.0%

Voting precincts

21 voting precincts overlap ZIP 45056. Map them, with each precinct's share of the ZIP's residents.

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ZIP 45056 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.