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City ZIP codes · Texas

Huntsville, TX ZIP Codes

8 ZIP codes use the postal name Huntsville, Texas (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 4 residential and 4 for PO boxes or a single organization. Median household income runs from $48,538 in 77340 to $55,663 in 77320 (Census Bureau, ACS 2020-2024). Huntsville's most populous ZIP code is 77320, with 38,152 people (ACS 2020-2024); 5% of its land is in the city of Huntsville.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Huntsville's ZIP codes?

77320: $56k median household income77340: $49k median household income77341: – median household income77342: – median household income773207734077320: $56k median household income77340: $49k median household income77341: – median household income77342: – median household income773207734077320: $56k median household income77340: $49k median household income77342: – median household income7732077340
The 4 residential ZIP codes named Huntsville, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$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 Huntsville's ZIP codes?

The highest median household income is in 77320 ($55,663), the lowest in 77340 ($48,538). Home values run from $203,100 in 77320 to $244,000 in 77340.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 4 residential ZIP codes of Huntsville

Residential ZIP codes with the postal name Huntsville, TX, largest first (ACS 2020-2024); sort by any column
County
77320 Walker County 38,152 111 $56k $203k
77340 Walker County 37,517 176 $49k $244k
77341 Walker County no residents 0 – –
77342 Walker County no residents 0 – –

Download the 8 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

PO Box and single-organization ZIP codes in Huntsville

4 ZIP codes named Huntsville have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Huntsville, TX: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
77343Walker County
77344Walker County
77348Walker County
77349Walker County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Huntsville's ZIP codes reach?

Huntsville's residential ZIP codes lie in 2 counties: Walker County (4 ZIP codes mainly there), San Jacinto County (part of a ZIP code).

Which places do Huntsville's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Huntsville's residential ZIP codes cover Huntsville itself and 1 other place, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

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

Which first three digits do Huntsville's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Huntsville starts with 773.

Three-digit prefixes of Huntsville'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 Huntsville's
PrefixSectional centerHereAll codes
773 North Houston, TX (SCF 773) 8 73

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