ZIP code 45339: Union, OH
ZIP code 45339 is in Ludlow Falls (15% of residents) and West Milton (1.2%), in Miami County, Ohio. 84% of its residents live outside city limits. It is in Ohio's 15th congressional district (70%) and Ohio's 8th congressional district (30%). Its state senate district is State Senate District 5; its state house district is State House District 80.
City and county
| City or town | Share of ZIP residents |
|---|---|
| Ludlow Falls | 15% |
| West Milton | 1.2% |
| County | Share of ZIP residents |
|---|---|
| Miami County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Union township | 60% |
| Newton township | 40% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Ohio's 15th congressional district (OH-15) | 70% |
| Ohio's 8th congressional district (OH-08) | 30% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OH-15) | Mike Carey (R) | 202-225-2015 | 70% |
| U.S. Representative (OH-08) | Warren Davidson (R) | 202-225-6205 | 30% |
| 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 5) | Steve Huffman (R) | 100% | |
| State Representative (State House District 80) | Johnathan Newman (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
- Ludlow Falls laws: search for the Ludlow Falls, Ohio code of ordinances
- West Milton website: http://www.westmiltonohio.gov/
- West Milton laws: search for the West Milton, Ohio code of ordinances
- Miami County laws: search for the Miami County, Ohio code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 5 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 80 | 100% |
Voting precincts
6 voting precincts overlap ZIP 45339. 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:45339")
ZIP 45339 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.