Boundary Atlas

ZIP code 73666: Sweetwater, OK

ZIP code 73666 is in Sweetwater (30% of residents), in Roger Mills County (54%) and Beckham County (46%), Oklahoma. 70% of its residents live outside city limits. It is in Oklahoma's 3rd congressional district. Its state senate districts are State Senate District 27 (54%) and State Senate District 38 (46%); its state house district is State House District 57.

344residents (2020 Census)
138.5 sq miland area
1cities and towns
1congressional district
2voting precincts

See it on the mapAll of Oklahoma

City and county

City or townShare of ZIP residents
Sweetwater30%

CountyShare of ZIP residents
Roger Mills County54%
Beckham County46%

Town or county subdivisionShare of ZIP residents
South Roger Mills CCD54%
Erick CCD46%

Congressional district

Congressional districtShare of ZIP residents
Oklahoma's 3rd congressional district (OK-03)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2754%
State Senate District 3846%

State house districtShare of ZIP residents
State House District 57100%

Voting precincts

2 voting precincts overlap ZIP 73666. 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:73666")

ZIP 73666 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.