ZIP code 78617: Austin, TX
ZIP code 78617 is in Austin (50% of residents) and Garfield (4.5%), in Travis County (78%) and Bastrop County (22%), Texas. 46% of its residents live outside city limits. It is in Texas's 27th congressional district (83%) and Texas's 37th congressional district (17%). Its state senate districts are State Senate District 21 (78%) and State Senate District 5 (22%); its state house districts are State House District 51 (78%) and State House District 17 (22%).
City and county
| City or town | Share of ZIP residents |
|---|---|
| Austin | 50% |
| Garfield | 4.5% |
| County | Share of ZIP residents |
|---|---|
| Travis County | 78% |
| Bastrop County | 22% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Austin CCD | 78% |
| Cedar Creek-Red Rock CCD | 22% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Texas's 27th congressional district (TX-27) | 83% |
| Texas's 37th congressional district (TX-37) | 17% |
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 | 50% |
| U.S. Representative (TX-27) | Michael Cloud (R) | 202-225-7742 | 83% |
| U.S. Representative (TX-37) | Lloyd Doggett (D) | 202-225-4865 | 17% |
| 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 21) | Judith Zaffirini (Democratic) | 956-722-2293 | 78% |
| State Senator (State Senate District 5) | Charles Schwertner (R) | 512-863-8456 | 22% |
| State Representative (State House District 51) | Lulu Flores (Democratic) | 78% | |
| State Representative (State House District 17) | Stan Gerdes (R) | 512-321-3720 | 22% |
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
- Garfield laws: search for the Garfield, Texas code of ordinances
- Travis County website: https://www.traviscountytx.gov/
- Travis County laws: search for the Travis County, Texas code of ordinances
- Bastrop County website: https://www.bastropcounty.gov/
- Bastrop County laws: search for the Bastrop County, Texas code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 21 | 78% |
| State Senate District 5 | 22% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 51 | 78% |
| State House District 17 | 22% |
Voting precincts
6 voting precincts overlap ZIP 78617. 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:78617")
ZIP 78617 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.