Boundary Atlas

ZIP code 78957: Smithville, TX

ZIP code 78957 is in Smithville (38% of residents) and Rosanky (10%), in Bastrop County (97%) and Fayette County (3.3%), Texas. 51% of its residents live outside city limits. It is in Texas's 27th congressional district. Its state senate districts are State Senate District 5 (97%) and State Senate District 18 (3.3%); its state house districts are State House District 17 (97%) and State House District 85 (3.3%).

10,214residents (2020 Census)
177.1 sq miland area
2cities and towns
1congressional district
7voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Smithville38%
Rosanky10%

CountyShare of ZIP residents
Bastrop County97%
Fayette County3.3%

Town or county subdivisionShare of ZIP residents
Smithville CCD92%
Bastrop CCD5.1%
La Grange West CCD2.6%
La Grange CCD0.6%
Flatonia CCD0.1%

Congressional district

Congressional districtShare of ZIP residents
Texas's 27th congressional district (TX-27)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (TX-27)Michael Cloud (R)202-225-7742100%
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 5)Charles Schwertner (R)512-863-845697%
State Senator (State Senate District 18)Lois Kolkhorst (R)361-573-73003.3%
State Representative (State House District 17)Stan Gerdes (R)512-321-372097%
State Representative (State House District 85)Stan Kitzman (R)979-865-45603.3%

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 597%
State Senate District 183.3%

State house districtShare of ZIP residents
State House District 1797%
State House District 853.3%

Voting precincts

7 voting precincts overlap ZIP 78957. Map them, with each precinct's share of the ZIP's residents.

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ZIP 78957 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.