Union, Ohio
Union is a city in Montgomery County (99% of residents) and Miami County (0.5%), Ohio, with 6,888 residents in 2020. It spans 2 congressional districts: OH-10 (99%) and OH-08 (0.5%). It spans 2 state house districts. Its state senate district is State Senate District 5.
County
| County | Share of residents |
|---|---|
| Montgomery County | 99% |
| Miami County | 0.5% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Ohio's 10th congressional district (OH-10) | 99% |
| Ohio's 8th congressional district (OH-08) | 0.5% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OH-10) | Michael R. Turner (R) | 202-225-6465 | 99% |
| U.S. Representative (OH-08) | Warren Davidson (R) | 202-225-6205 | 0.5% |
| 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 39) | Phil Plummer (R) | 99% | |
| State Representative (State House District 80) | Johnathan Newman (R) | 0.5% |
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
- Union laws: search for the Union, Ohio code of ordinances
- Montgomery County website: https://www.mcohio.org/
- Montgomery County laws: search for the Montgomery County, Ohio code of ordinances
- Miami County laws: search for the Miami County, Ohio code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 5 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 39 | 99% |
| State House District 80 | 0.5% |
ZIP codes
Percentages mark ZIPs only partly in Union: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Union's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:3978470")
Union here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.