ZIP code 77535: Dayton, TX
ZIP code 77535 is in Dayton (24% of residents), Mont Belvieu (4.4%), Old River-Winfree (3.2%) and Kenefick (1.7%), in Liberty County (91%), Chambers County (8.5%) and Harris County (<0.1%), Texas. 67% of its residents live outside city limits. It is in Texas's 9th congressional district (91%) and Texas's 36th congressional district (8.5%). Its state senate districts are State Senate District 3 (91%) and State Senate District 4 (8.6%); its state house districts are State House District 18 (91%), State House District 23 (8.5%) and State House District 128 (<0.1%).
City and county
| City or town | Share of ZIP residents |
|---|---|
| Dayton | 24% |
| Mont Belvieu | 4.4% |
| Old River-Winfree | 3.2% |
| Kenefick | 1.7% |
| Dayton Lakes | 0.1% |
| County | Share of ZIP residents |
|---|---|
| Liberty County | 91% |
| Chambers County | 8.5% |
| Harris County | <0.1% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Liberty-Dayton CCD | 87% |
| Mont Belvieu CCD | 8.5% |
| Cleveland CCD | 4.2% |
| Northeast Harris CCD | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Texas's 9th congressional district (TX-09) | 91% |
| Texas's 36th congressional district (TX-36) | 8.5% |
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-09) | Al Green (D) | 202-225-7508 | 91% |
| U.S. Representative (TX-36) | Brian Babin (R) | 202-225-1555 | 8.5% |
| 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 3) | Robert Nichols (R) | 409-755-9893 | 91% |
| State Senator (State Senate District 4) | Brett Ligon (R) | 8.6% | |
| State Representative (State House District 18) | Janis Holt (R) | 409-527-5065 | 91% |
| State Representative (State House District 23) | Terri Leo-Wilson (R) | 409-762-0202 | 8.5% |
| State Representative (State House District 128) | Briscoe Cain (R) | 346-499-7036 | <0.1% |
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
- Dayton laws: search for the Dayton, Texas code of ordinances
- Mont Belvieu laws: search for the Mont Belvieu, Texas code of ordinances
- Old River-Winfree laws: search for the Old River-Winfree, Texas code of ordinances
- Liberty County website: https://www.co.liberty.tx.us/
- Liberty County laws: search for the Liberty County, Texas code of ordinances
- Chambers County website: https://www.chamberscountytx.gov/
- Chambers County laws: search for the Chambers County, Texas code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 3 | 91% |
| State Senate District 4 | 8.6% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 18 | 91% |
| State House District 23 | 8.5% |
| State House District 128 | <0.1% |
Voting precincts
10 voting precincts overlap ZIP 77535. 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://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:77535")
ZIP 77535 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.