Defiance, Ohio
Defiance is a city in Defiance County, Ohio, with 17,066 residents in 2020. It is in Ohio's 9th congressional district. Its state senate district is State Senate District 1; its state house district is State House District 82.
County
| County | Share of residents |
|---|---|
| Defiance County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Ohio's 9th congressional district (OH-09) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Mike McCann | citywide | |
| U.S. Representative (OH-09) | Marcy Kaptur (D) | 202-225-4146 | 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 1) | Rob McColley (R) | 100% | |
| State Representative (State House District 82) | Roy Klopfenstein (R) | 100% |
From Wikidata (community-maintained); confirm on the city's website.
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); Mayors: Wikidata (CC0).
Local government
- Defiance website: http://www.cityofdefiance.com/
- Defiance laws: search for the Defiance, Ohio code of ordinances
- Defiance County website: http://www.defiance-county.com
- Defiance County laws: search for the Defiance County, Ohio code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 1 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 82 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Defiance: the share of that ZIP's residents living in it.
- 43512 (60%)
Get this in your AI agent
Your agent can get Defiance'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:3921308")
Defiance 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.