ZIP code · Collegeport · Texas · United States
ZIP code 77428 — Collegeport
ZIP code 77428 serves Collegeport, Texas.
- Postal code
- 77428Single source Value from one source, not cross-checked.
- City
- Collegeport
- County
- Matagorda FIPS 48321
- State
- Texas
- Country
- United States
- Coordinates
- 28.7253, -96.1750 — precision precise (locality)
View on OpenStreetMap - Population
- 126 (ZCTA, ACS 5-year)
- Population density
- 5 / sq mi
- Land area
- 23.8 sq mi (61.6 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $0
- Median age
- 54.3
- Households
- 35
- Housing units
- 154
- Congressional district
- TX-22 (119th Congress)
- USDA hardiness zone
- 9b (25 to 30 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 361 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 77428 with another ZIP · ZIPs within 25 miles · distance from 77428
Map of ZIP code 77428
Climate — monthly normals
Warmest month Aug (avg high 93°F), coldest Jan (avg low 46°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 65 | 68 | 73 | 80 | 85 | 90 | 92 | 93 | 90 | 84 | 74 | 68 |
| Avg low °F | 46 | 50 | 57 | 63 | 71 | 77 | 79 | 79 | 73 | 64 | 55 | 48 |
| Precip in | 3.3 | 1.9 | 2.7 | 2.7 | 3.9 | 4.5 | 3.7 | 3.9 | 5.9 | 4.3 | 3.4 | 3.0 |
NOAA 1991–2020 climate normals from the nearest station: PALACIOS MUNI AP (4.8 mi) · NOAA NCEI
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page