ZIP code 45054: Washington, OH
ZIP code 45054 is in Warren County, Ohio, outside any city or Census-designated place. It is in Ohio's 1st congressional district. Its state senate district is State Senate District 7; its state house districts are State House District 55 (75%) and State House District 56 (25%).
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Warren County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Washington township | 57% |
| Turtlecreek township | 25% |
| Wayne township | 15% |
| Massie township | 2.9% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Ohio's 1st congressional district (OH-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OH-01) | Greg Landsman (D) | 202-225-2216 | 100% |
| U.S. Senator | Bernie Moreno (R) | 202-224-2315 | statewide |
| U.S. Senator | Jon Husted (R) | 202-224-3353 | statewide |
| State Senator (State Senate District 7) | Steve Wilson (R) | 100% | |
| State Representative (State House District 55) | Michelle Teska (R) | 75% | |
| State Representative (State House District 56) | Adam Mathews (R) | 25% |
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
- Warren County website: https://co.warren.oh.us
- Warren County laws: search for the Warren County, Ohio code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 7 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 55 | 75% |
| State House District 56 | 25% |
Voting precincts
7 voting precincts overlap ZIP 45054. 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:45054")
ZIP 45054 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.