Boundary Atlas

ZIP code 45015: Hamilton, OH

ZIP code 45015 is in Hamilton (87% of residents), in Butler County, Ohio. 13% of its residents live outside city limits. It is in Ohio's 8th congressional district. Its state senate district is State Senate District 4; its state house district is State House District 47.

12,103residents (2020 Census)
5.6 sq miland area
1cities and towns
1congressional district
11voting precincts

See it on the mapAll of Ohio

City and county

City or townShare of ZIP residents
Hamilton87%

CountyShare of ZIP residents
Butler County100%

Town or county subdivisionShare of ZIP residents
Hamilton city87%
Fairfield township13%

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)100%
State Representative (State House District 47)Diane Mullins (R)100%

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 4100%

State house districtShare of ZIP residents
State House District 47100%

Voting precincts

11 voting precincts overlap ZIP 45015. Map them, with each precinct's share of the ZIP's residents.

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ZIP 45015 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.