Lancaster, Ohio
Lancaster is a city in Fairfield County, Ohio, with 40,596 residents in 2020. It is in Ohio's 12th congressional district. Its state senate district is State Senate District 20; its state house district is State House District 73.
County
| County | Share of residents |
|---|---|
| Fairfield County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Ohio's 12th congressional district (OH-12) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OH-12) | Troy Balderson (R) | 202-225-5355 | 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 20) | Tim Schaffer (R) | 100% | |
| State Representative (State House District 73) | Jeff LaRe (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
- Lancaster website: http://www.ci.lancaster.oh.us/
- Lancaster laws: search for the Lancaster, Ohio code of ordinances
- Fairfield County website: http://www.co.fairfield.oh.us
- Fairfield County laws: search for the Fairfield County, Ohio code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 20 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 73 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Lancaster: the share of that ZIP's residents living in it.
- 43130 (65%)
Get this in your AI agent
Your agent can get Lancaster'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:3941720")
Lancaster 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.