ZIP code 83127: Star Valley Ranch, WY
ZIP code 83127 is in Star Valley Ranch (48% of residents) and Thayne (10%), in Lincoln County (97%) and Caribou County (2.7%), Wyoming. 42% of its residents live outside city limits. It is in Wyoming's at-large congressional district (97%) and Idaho's 2nd congressional district (2.7%). Its state senate districts are State Senate District 16 (97%) and State Senate District 35 (2.7%); its state house districts are State House District 22 (55%), State House District 21 (42%) and State House District 35 (2.7%).
See it on the mapAll of Wyoming
City and county
| City or town | Share of ZIP residents |
|---|---|
| Star Valley Ranch | 48% |
| Thayne | 10% |
| County | Share of ZIP residents |
|---|---|
| Lincoln County | 97% |
| Caribou County | 2.7% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Afton CCD | 97% |
| Wayan CCD | 2.7% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Wyoming's at-large congressional district (WY-AL) | 97% |
| Idaho's 2nd congressional district (ID-02) | 2.7% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (WY-AL) | Harriet M. Hageman (R) | 202-225-2311 | 97% |
| U.S. Representative (ID-02) | Michael K. Simpson (R) | 202-225-5531 | 2.7% |
| U.S. Senator | Cynthia M. Lummis (R) | 202-224-3424 · contact form | statewide |
| U.S. Senator | John Barrasso (R) | 202-224-6441 · contact form | statewide |
| State Senator (State Senate District 16) | Dan Dockstader (R) | 97% | |
| State Senator (State Senate District 35) | Mark Harris (R) | 208-547-3360 | 2.7% |
| State Representative (State House District 22) | Andrew Byron (R) | 55% | |
| State Representative (State House District 21) | McKay Erickson (R) | 307-884-6119 | 42% |
| State Representative (State House District 35) | Josh Wheeler (R) | 208-360-3926 | 2.7% |
| State Representative (State House District 35) | Mike Veile (R) | 208-223-2544 | 2.7% |
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
- Star Valley Ranch laws: search for the Star Valley Ranch, Wyoming code of ordinances
- Thayne laws: search for the Thayne, Wyoming code of ordinances
- Lincoln County website: http://www.lcwy.org
- Lincoln County laws: search for the Lincoln County, Wyoming code of ordinances
- Caribou County website: https://www.cariboucounty.us/
- Caribou County laws: search for the Caribou County, Wyoming code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 16 | 97% |
| State Senate District 35 | 2.7% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 22 | 55% |
| State House District 21 | 42% |
| State House District 35 | 2.7% |
Voting precincts
6 voting precincts overlap ZIP 83127. It also crosses into ID. 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:83127")
ZIP 83127 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.