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77555
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  2. ZIP Codes
  3. ZIP Code 77555
Texas (TX)Galveston CountyHouston-Pasadena-The Woodlands409

ZIP Code 77555 — Galveston, TX

Galveston County * Houston-Pasadena-The Woodlands metro

Compare

2

Population

What stands out

  • Snapshot data is limited for this ZIP.

Categories vs U.S.

Economy

Economy metrics are not available for this ZIP. This is common for USPS ZIP codes that don't map cleanly to a Census ZIP Code Tabulation Area (ZCTA), which is what ACS estimates are published for.

Connectivity

3 of 3 metrics better than U.S.

Best available speed

1,000Mbps

Gigabit speeds reported

100+ Mbps coverage

94.3%

U.S.

85.3%

Gigabit ready

22.4%

U.S.

8.6%

5G available

85.2%

U.S.

77.4%

Learning

Education metrics come from ACS 5-year estimates for ZIP Code Tabulation Areas (ZCTAs).

Bachelor's degree+ (age 25+)

0.0%

U.S.

35.7%

ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as noise.

School districts

Galveston Independent School District

Map

ZIP 77555

Galveston, TX

Population

2

Area

0.0 sq mi

Density

87/sq mi

Neighbors

77550
More Details

Census Tracts

1 tracts overlap this ZIP. Hover over segments to explore.

100%

Tract 7243

100%

Total tracts: 1Coverage: 100.0%

Representation

U.S. House

ZIP codes can span multiple congressional districts. Overlap percentages are approximate by land area. Verify by address.

100%

TX-14

100%

Districts: 1Coverage: 100.0%

Data freshness

ACS 5-Year
2020–2024
Broadband
2020-12
Mobile
2025-11-24
Page Updated
2026-02-23

Release schedule and upstream dates: Sources.

Data sources

US Census Bureau (ACS 5-year)HUD USPS ZIP crosswalkUS Census TIGER/Line (geometry inputs)US Census TIGER/Line (school districts)US Census Bureau (ZCTA-to-tract relationship, 2020)US Census Bureau (2020 ZCTA-to-congressional-district relationship file, CD119)FCC (Form 477 broadband)FCC (Mobile Broadband Data Collection)

Derived statistics

  • ZIP pages use Census ZIP Code Tabulation Areas (ZCTAs), not USPS delivery routes.
  • Population density is computed as population ÷ land area.
  • Overlap percentages (tracts and districts) are derived from map geometry and are approximate.

Data accuracy & methodology

ZIP pages combine 2020–2024 ACS 5-year ZCTA estimates with other public datasets when available (see Sources). Connectivity metrics use FCC coverage data, not ACS. ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as statistical noise rather than precise changes.