Boundary Atlas

ZIP code 78733: Travis County, TX

ZIP code 78733 is in Austin (6.6% of residents), in Travis County, Texas. 93% of its residents live outside city limits. It is in Texas's 10th congressional district. Its state senate district is State Senate District 14; its state house districts are State House District 48 (65%) and State House District 47 (35%).

9,347residents (2020 Census)
11.2 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Austin6.6%

CountyShare of ZIP residents
Travis County100%

Town or county subdivisionShare of ZIP residents
Southwest Travis CCD75%
Austin CCD25%

Congressional district

Congressional districtShare of ZIP residents
Texas's 10th congressional district (TX-10)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (TX-10)Michael T. McCaul (R)202-225-2401100%
U.S. SenatorJohn Cornyn (R)202-224-2934 · contact formstatewide
U.S. SenatorTed Cruz (R)202-224-5922 · contact formstatewide
State Senator (State Senate District 14)Sarah Eckhardt (Democratic)100%
State Representative (State House District 48)Donna Howard (Democratic)65%
State Representative (State House District 47)Vikki Goodwin (Democratic)35%

Elected in 2024 under TX's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).

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 14100%

State house districtShare of ZIP residents
State House District 4865%
State House District 4735%

Voting precincts

4 voting precincts overlap ZIP 78733. Map them, with each precinct's share of the ZIP's residents.

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ZIP 78733 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.