Monroe, Ohio
Monroe is a city in Butler County (99% of residents) and Warren County (0.8%), Ohio, with 15,405 residents in 2020. It spans 3 congressional districts: OH-10 (66%), OH-08 (33%) and OH-01 (0.8%). It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| Butler County | 99% |
| Warren County | 0.8% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Ohio's 10th congressional district (OH-10) | 66% |
| Ohio's 8th congressional district (OH-08) | 33% |
| Ohio's 1st congressional district (OH-01) | 0.8% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OH-10) | Michael R. Turner (R) | 202-225-6465 | 66% |
| U.S. Representative (OH-08) | Warren Davidson (R) | 202-225-6205 | 33% |
| U.S. Representative (OH-01) | Greg Landsman (D) | 202-225-2216 | 0.8% |
| 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 4) | George Lang (R) | 99% | |
| State Senator (State Senate District 7) | Steve Wilson (R) | 0.8% | |
| State Representative (State House District 46) | Thomas Hall (R) | 99% | |
| State Representative (State House District 56) | Adam Mathews (R) | 0.8% |
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
- Monroe website: https://www.monroeohio.org/
- Monroe laws: search for the Monroe, Ohio code of ordinances
- Butler County website: https://bcohio.gov
- Butler County laws: search for the Butler County, Ohio code of ordinances
- 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 residents |
|---|---|
| State Senate District 4 | 99% |
| State Senate District 7 | 0.8% |
| State house district | Share of residents |
|---|---|
| State House District 46 | 99% |
| State House District 56 | 0.8% |
ZIP codes
Percentages mark ZIPs only partly in Monroe: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Monroe'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:3951310")
Monroe 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.