ZIP code 45678: Windsor, OH
ZIP code 45678 is in Lawrence County (88%) and Gallia County (12%), Ohio, outside any city or Census-designated place. It is in Ohio's 2nd congressional district. Its state senate district is State Senate District 17; its state house district is State House District 93.
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Lawrence County | 88% |
| Gallia County | 12% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Windsor township | 49% |
| Mason township | 30% |
| Rome township | 9.7% |
| Guyan township | 8.8% |
| Walnut township | 3.5% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Ohio's 2nd congressional district (OH-02) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OH-02) | David J. Taylor (R) | 202-225-3164 | 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 17) | Shane Wilkin (R) | 100% | |
| State Representative (State House District 93) | Jason Stephens (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
- Lawrence County website: http://www.lawrencecountyohio.org
- Lawrence County laws: search for the Lawrence County, Ohio code of ordinances
- Gallia County website: http://www.gallianet.net
- Gallia County laws: search for the Gallia County, Ohio code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 17 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 93 | 100% |
Voting precincts
7 voting precincts overlap ZIP 45678. 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:45678")
ZIP 45678 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.