ZIP code 42120: Allen County, KY
ZIP code 42120 is in Allen County, Kentucky, outside any city or Census-designated place. It is in Kentucky's 1st congressional district. Its state senate district is State Senate District 16; its state house district is State House District 22.
See it on the mapAll of Kentucky
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Allen County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Adolphus CCD | 99% |
| Holland CCD | 1.1% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Kentucky's 1st congressional district (KY-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (KY-01) | James Comer (R) | 202-225-3115 | 100% |
| U.S. Senator | Mitch McConnell (R) | 202-224-2541 · contact form | statewide |
| U.S. Senator | Rand Paul (R) | 202-224-4343 · contact form | statewide |
| State Senator (State Senate District 16) | Max Wise (R) | 100% | |
| State Representative (State House District 22) | Shawn McPherson (R) | 100% |
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
- Allen County website: http://www.allencountykentucky.com
- Allen County laws: search for the Allen County, Kentucky code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 16 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 22 | 100% |
Voting precincts
4 voting precincts overlap ZIP 42120. 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:42120")
ZIP 42120 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.