ZIP code 83253: Custer County, ID
ZIP code 83253 is in Custer County (51%) and Lemhi County (49%), Idaho, outside any city or Census-designated place. It is in Idaho's 2nd congressional district. Its state senate districts are State Senate District 8 (51%) and State Senate District 31 (49%); its state house districts are State House District 8 (51%) and State House District 31 (49%).
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Custer County | 51% |
| Lemhi County | 49% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Challis CCD | 51% |
| Patterson CCD | 49% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Idaho's 2nd congressional district (ID-02) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (ID-02) | Michael K. Simpson (R) | 202-225-5531 | 100% |
| U.S. Senator | James E. Risch (R) | 202-224-2752 · contact form | statewide |
| U.S. Senator | Mike Crapo (R) | 202-224-6142 · contact form | statewide |
| State Senator (State Senate District 8) | Christy Zito (R) | 208-590-4633 | 51% |
| State Senator (State Senate District 31) | Van Burtenshaw (R) | 49% | |
| State Representative (State House District 8) | Faye Thompson (R) | 208-634-6569 | 51% |
| State Representative (State House District 8) | Rob Beiswenger (R) | 51% | |
| State Representative (State House District 31) | Jerald Raymond (R) | 208-317-8777 | 49% |
| State Representative (State House District 31) | Rod Furniss (R) | 208-589-1100 | 49% |
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
- Custer County laws: search for the Custer County, Idaho code of ordinances
- Lemhi County website: http://www.lemhicountyidaho.org
- Lemhi County laws: search for the Lemhi County, Idaho code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 8 | 51% |
| State Senate District 31 | 49% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 8 | 51% |
| State House District 31 | 49% |
Voting precincts
2 voting precincts overlap ZIP 83253. 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://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:83253")
ZIP 83253 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.