Boundary Atlas

ZIP code 78217: San Antonio, TX

ZIP code 78217 is in San Antonio, in Bexar County, Texas. It is in Texas's 35th congressional district (78%), Texas's 21st congressional district (19%) and Texas's 20th congressional district (3.2%). Its state senate districts are State Senate District 25 (82%) and State Senate District 26 (18%); its state house districts are State House District 121 (61%), State House District 119 (16%), State House District 118 (12%) and State House District 123 (11%).

33,562residents (2020 Census)
10.1 sq miland area
1cities and towns
3congressional districts
19voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
San Antonio100%

CountyShare of ZIP residents
Bexar County100%

Town or county subdivisionShare of ZIP residents
San Antonio Northeast CCD96%
San Antonio Central CCD4.1%

Congressional districts

Congressional districtShare of ZIP residents
Texas's 35th congressional district (TX-35)78%
Texas's 21st congressional district (TX-21)19%
Texas's 20th congressional district (TX-20)3.2%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
MayorGina Ortiz Jones100%
U.S. Representative (TX-35)Greg Casar (D)202-225-564578%
U.S. Representative (TX-21)Chip Roy (R)202-225-423619%
U.S. Representative (TX-20)Joaquin Castro (D)202-225-32363.2%
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 25)Donna Campbell (R)830-626-006582%
State Senator (State Senate District 26)José Menéndez (Democratic)210-733-660418%
State Representative (State House District 121)Marc LaHood (R)210-640-102161%
State Representative (State House District 119)Liz Campos (Democratic)210-806-089916%
State Representative (State House District 118)John Lujan (R)210-595-006812%
State Representative (State House District 123)Diego Bernal (Democratic)210-308-970011%

From Wikidata (community-maintained); confirm on the city's website.

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); Mayors: Wikidata (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2582%
State Senate District 2618%

State house districtShare of ZIP residents
State House District 12161%
State House District 11916%
State House District 11812%
State House District 12311%

Voting precincts

19 voting precincts overlap ZIP 78217. Map them, with each precinct's share of the ZIP's residents.

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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:78217")

ZIP 78217 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.