ZIP code 78735: Austin, TX
ZIP code 78735 is in Austin (80% of residents) and Barton Creek (16%), in Travis County, Texas. It is in Texas's 10th congressional district (92%) and Texas's 37th congressional district (7.9%). Its state senate district is State Senate District 14; its state house districts are State House District 47 (67%), State House District 48 (31%) and State House District 49 (1.6%).
City and county
| City or town | Share of ZIP residents |
|---|---|
| Austin | 80% |
| Barton Creek | 16% |
| Sunset Valley | 0.2% |
| Bee Cave | <0.1% |
| County | Share of ZIP residents |
|---|---|
| Travis County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Austin CCD | 98% |
| Southwest Travis CCD | 2.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Texas's 10th congressional district (TX-10) | 92% |
| Texas's 37th congressional district (TX-37) | 7.9% |
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
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Kirk Watson | 512-978-2100 | 80% |
| U.S. Representative (TX-10) | Michael T. McCaul (R) | 202-225-2401 | 92% |
| U.S. Representative (TX-37) | Lloyd Doggett (D) | 202-225-4865 | 7.9% |
| U.S. Senator | John Cornyn (R) | 202-224-2934 · contact form | statewide |
| U.S. Senator | Ted Cruz (R) | 202-224-5922 · contact form | statewide |
| State Senator (State Senate District 14) | Sarah Eckhardt (Democratic) | 100% | |
| State Representative (State House District 47) | Vikki Goodwin (Democratic) | 67% | |
| State Representative (State House District 48) | Donna Howard (Democratic) | 31% | |
| State Representative (State House District 49) | Gina Hinojosa (Democratic) | 1.6% |
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: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Austin website: https://austintexas.gov
- Austin laws: search for the Austin, Texas code of ordinances
- Barton Creek laws: search for the Barton Creek, Texas code of ordinances
- Travis County website: https://www.traviscountytx.gov/
- Travis County laws: search for the Travis County, Texas code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 14 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 47 | 67% |
| State House District 48 | 31% |
| State House District 49 | 1.6% |
Voting precincts
9 voting precincts overlap ZIP 78735. 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:78735")
ZIP 78735 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.