Texas's 37th congressional district (TX-37)
Texas's 37th congressional district (TX-37) lies within Travis County, and 36 ZIP codes (17 wholly inside it). Its 2020 population was 766,987. This is the map in force for the November 3, 2026 election.
Who represents TX-37
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (TX-37) | Lloyd Doggett (D) | 202-225-4865 |
| U.S. Senator | John Cornyn (R) | 202-224-2934 · contact form |
| U.S. Senator | Ted Cruz (R) | 202-224-5922 · contact form |
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: Members of Congress: the @unitedstates project, congress-legislators (CC0).
Counties
| County | Share of the county's residents in TX-37 |
|---|---|
| Travis County | 59% |
ZIP codes
Percentages mark ZIPs only partly in TX-37: the share of that ZIP's residents inside it.
- 78617 (17%)
- 78653 (47%)
- 78701 (19%)
- 78702
- 78703 (29%)
- 78704 (99%)
- 78705
- 78712
- 78719 (0.1%)
- 78721
- 78722
- 78723
- 78724
- 78725
- 78727 (56%)
- 78731 (99%)
- 78735 (7.9%)
- 78736 (62%)
- 78737 (0.3%)
- 78739 (27%)
- 78741
- 78742
- 78744 (100%)
- 78745
- 78746 (10%)
- 78747 (67%)
- 78748 (77%)
- 78749
- 78751
- 78752
- 78753 (96%)
- 78754 (81%)
- 78756
- 78757
- 78758
- 78759 (57%)
Towns
Austin CCD, Northeast Travis CCD, Southwest Travis CCD and Northwest Travis CCD.
Get this in your AI agent
Your agent can draw every precinct in TX-37, or list them with population shares (related_geographies). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
get_boundaries(id="us:congressional_district:4837", children_level="precinct", include_districts=True)