ZIP code 77836: Caldwell, TX
ZIP code 77836 is in Caldwell (33% of residents), Beaver Creek (7.8%) and Cade Lakes (4.3%), in Burleson County (100%) and Milam County (0.4%), Texas. 55% of its residents live outside city limits. It is in Texas's 10th congressional district (100%) and Texas's 17th congressional district (0.4%). Its state senate districts are State Senate District 18 (100%) and State Senate District 5 (0.4%); its state house district is State House District 17.
City and county
| City or town | Share of ZIP residents |
|---|---|
| Caldwell | 33% |
| Beaver Creek | 7.8% |
| Cade Lakes | 4.3% |
| Tunis | 0.8% |
| Lyons | 0.4% |
| Deanville | 0.2% |
| County | Share of ZIP residents |
|---|---|
| Burleson County | 100% |
| Milam County | 0.4% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Caldwell CCD | 69% |
| Old River CCD | 15% |
| Cooks Point CCD | 12% |
| Somerville CCD | 3.6% |
| Gause-Milano CCD | 0.4% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Texas's 10th congressional district (TX-10) | 100% |
| Texas's 17th congressional district (TX-17) | 0.4% |
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 |
|---|---|---|---|
| U.S. Representative (TX-10) | Michael T. McCaul (R) | 202-225-2401 | 100% |
| U.S. Representative (TX-17) | Pete Sessions (R) | 202-225-6105 | 0.4% |
| 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 18) | Lois Kolkhorst (R) | 361-573-7300 | 100% |
| State Senator (State Senate District 5) | Charles Schwertner (R) | 512-863-8456 | 0.4% |
| State Representative (State House District 17) | Stan Gerdes (R) | 512-321-3720 | 100% |
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
- Caldwell website: https://www.caldwelltx.gov/
- Caldwell laws: search for the Caldwell, Texas code of ordinances
- Beaver Creek laws: search for the Beaver Creek, Texas code of ordinances
- Cade Lakes laws: search for the Cade Lakes, Texas code of ordinances
- Burleson County website: https://www.burlesoncountytx.gov/
- Burleson County laws: search for the Burleson County, Texas code of ordinances
- Milam County website: https://www.milamcounty.net/
- Milam County laws: search for the Milam County, Texas code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 18 | 100% |
| State Senate District 5 | 0.4% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 17 | 100% |
Voting precincts
13 voting precincts overlap ZIP 77836. 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:77836")
ZIP 77836 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.