ZIP code 73638: Roger Mills County, OK
ZIP code 73638 is in Roger Mills County, Oklahoma, outside any city or Census-designated place. It is in Oklahoma's 3rd congressional district. Its state senate district is State Senate District 27; its state house district is State House District 57.
See it on the mapAll of Oklahoma
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Roger Mills County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Cheyenne CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Oklahoma's 3rd congressional district (OK-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OK-03) | Frank D. Lucas (R) | 202-225-5565 | 100% |
| U.S. Senator | Alan Armstrong (R) | 202-224-4721 | statewide |
| U.S. Senator | James Lankford (R) | 202-224-5754 · contact form | statewide |
| State Senator (State Senate District 27) | Casey Murdock (R) | 100% | |
| State Representative (State House District 57) | Anthony Moore (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
- Roger Mills County website: http://www.rogermills.org
- Roger Mills County laws: search for the Roger Mills County, Oklahoma code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 27 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 57 | 100% |
Voting precincts
2 voting precincts overlap ZIP 73638. 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:73638")
ZIP 73638 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.