Boundary Atlas

ZIP code 77523: Mont Belvieu, TX

ZIP code 77523 is in Mont Belvieu (23% of residents), Beach City (12%), Baytown (8.0%) and Cove (1.9%), in Chambers County (97%) and Harris County (3.1%), Texas. 56% of its residents live outside city limits. It is in Texas's 36th congressional district. Its state senate districts are State Senate District 4 (97%) and State Senate District 11 (3.1%); its state house districts are State House District 23 (97%) and State House District 128 (3.1%).

27,638residents (2020 Census)
85.2 sq miland area
5cities and towns
1congressional district
11voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Mont Belvieu23%
Beach City12%
Baytown8.0%
Cove1.9%
Old River-Winfree0.6%

CountyShare of ZIP residents
Chambers County97%
Harris County3.1%

Town or county subdivisionShare of ZIP residents
Mont Belvieu CCD97%
Baytown CCD3.1%

Congressional district

Congressional districtShare of ZIP residents
Texas's 36th congressional district (TX-36)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (TX-36)Brian Babin (R)202-225-1555100%
U.S. SenatorJohn Cornyn (R)202-224-2934 · contact formstatewide
U.S. SenatorTed Cruz (R)202-224-5922 · contact formstatewide
State Senator (State Senate District 4)Brett Ligon (R)97%
State Senator (State Senate District 11)Mayes Middleton (R)3.1%
State Representative (State House District 23)Terri Leo-Wilson (R)409-762-020297%
State Representative (State House District 128)Briscoe Cain (R)346-499-70363.1%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 497%
State Senate District 113.1%

State house districtShare of ZIP residents
State House District 2397%
State House District 1283.1%

Voting precincts

11 voting precincts overlap ZIP 77523. Map them, with each precinct's share of the ZIP's residents.

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ZIP 77523 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.