Boundary Atlas

ZIP code 73528: Chattanooga, OK

ZIP code 73528 is in Chattanooga (58% of residents), in Comanche County (70%), Tillman County (21%) and Cotton County (9.2%), Oklahoma. 42% of its residents live outside city limits. It is in Oklahoma's 4th congressional district. Its state senate districts are State Senate District 31 (77%), State Senate District 38 (21%) and State Senate District 32 (1.6%); its state house district is State House District 63.

694residents (2020 Census)
103.6 sq miland area
1cities and towns
1congressional district
6voting precincts

See it on the mapAll of Oklahoma

City and county

City or townShare of ZIP residents
Chattanooga58%

CountyShare of ZIP residents
Comanche County70%
Tillman County21%
Cotton County9.2%

Town or county subdivisionShare of ZIP residents
Southwest Comanche CCD70%
East Tillman CCD21%
Walters CCD8.5%
Southwest Cotton CCD0.7%

Congressional district

Congressional districtShare of ZIP residents
Oklahoma's 4th congressional district (OK-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (OK-04)Tom Cole (R)202-225-6165100%
U.S. SenatorAlan Armstrong (R)202-224-4721statewide
U.S. SenatorJames Lankford (R)202-224-5754 · contact formstatewide
State Senator (State Senate District 31)Spencer Kern (R)77%
State Senator (State Senate District 38)Brent Howard (R)21%
State Senator (State Senate District 32)Dusty Deevers (R)1.6%
State Representative (State House District 63)Trey Caldwell (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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 3177%
State Senate District 3821%
State Senate District 321.6%

State house districtShare of ZIP residents
State House District 63100%

Voting precincts

6 voting precincts overlap ZIP 73528. 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:73528")

ZIP 73528 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.