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County ZIP codes · Texas · FIPS 48071

Chambers County, TX ZIP Codes

Chambers County, Texas has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Chambers County and 4 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $54,278 in 77520 to $124,188 in 77523 (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Chambers County?

77514 · Anahuac: $85k77520 · Baytown: $54k77521 · Baytown: $74k77523 · Baytown: $124k77535 · Dayton: $85k77560 · Hankamer: $76k77575 · Liberty: $57k77580 · Mont Belvieu: –77597 · Wallisville: –77661 · Stowell: –77665 · Winnie: $79k77535775757766577514775237752177520775977756077514 · Anahuac: $85k77520 · Baytown: $54k77521 · Baytown: $74k77523 · Baytown: $124k77535 · Dayton: $85k77560 · Hankamer: $76k77575 · Liberty: $57k77580 · Mont Belvieu: –77597 · Wallisville: –77661 · Stowell: –77665 · Winnie: $79k77535775757766577514775237752177520775977756077514 · Anahuac: $85k77520 · Baytown: $54k77521 · Baytown: $74k77523 · Baytown: $124k77535 · Dayton: $85k77560 · Hankamer: $76k77575 · Liberty: $57k77580 · Mont Belvieu: –77597 · Wallisville: –77661 · Stowell: –77665 · Winnie: $79k7753577575776657751477523775217752077597
The residential ZIP codes of Chambers County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $73,629 and $84,497.

They carry 9 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 11 residential ZIP codes in Chambers County

7 ZIP codes lie mainly in Chambers County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Chambers County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
77523 Baytown 30,186 354 $124k $372k 95%
77665 Winnie 7,511 44 $79k $170k 75%
77514 Anahuac 5,480 30 $85k $215k 100%
77560 Hankamer 1,238 46 $76k $262k 100%
77597 Wallisville 623 38 – – 100%
77661 Stowell 102 53 – – 100%
77580 Mont Belvieu no residents 0 – – 100%

Partly in Chambers County

Residential ZIP codes mainly in another county that reach at least 1% into Chambers County, by their share here
In this county
77521 Baytown 69,038 1,401 $74k $231k 23%
77520 Baytown 36,355 1,729 $54k $151k 4%
77535 Dayton 39,504 128 $85k $225k 3%
77575 Liberty 16,613 70 $57k $186k 3%

Download the 11 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

6 ZIP codes of Chambers County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Chambers County and in the neighboring counties
ZIPIn ChambersElsewhere
7752123%Harris County 77%
775353%Liberty County 97%
775204%Harris County 96%
7752395%Harris County 5%
775753%Liberty County 97%
7766575%Jefferson County 25%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Chambers County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Chambers County's ZIP codes use 2 prefixes: 775 and 776.

Three-digit prefixes of Chambers County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Chambers County's
PrefixSectional centerHereAll codes
775 North Houston, TX (SCF 773) 9 71
776 Beaumont, TX (SCF 776) 2 36

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.