ZIP code 45051: Delhi, OH
ZIP code 45051 is in Hamilton 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 8; its state house district is State House District 30.
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Hamilton County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Delhi township | 100% |
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 8) | Bill Blessing (R) | 100% | |
| State Representative (State House District 30) | Mike Odioso (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
- Hamilton County laws: search for the Hamilton County, Ohio code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 8 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 30 | 100% |
Voting precincts
1 voting precinct overlap ZIP 45051. 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:45051")
ZIP 45051 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.