ZIP code · Gilchrist · Texas · United States
ZIP code 77617 — Gilchrist
ZIP code 77617 serves Gilchrist, Texas.
- Postal code
- 77617Single source Value from one source, not cross-checked.
- City
- Gilchrist
- County
- Galveston FIPS 48167
- State
- Texas
- Country
- United States
- Coordinates
- 29.5230, -94.4755 — precision precise (locality)
View on OpenStreetMap - Population
- 38 (ZCTA, ACS 5-year)
- Population density
- 7 / sq mi
- Land area
- 5.2 sq mi (13.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $72,885
- Per-capita income
- $36,947
- Median age
- 67.4
- Households
- 22
- Housing units
- 105
- Congressional district
- TX-14 (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
- 409 (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 77617 with another ZIP · ZIPs within 25 miles · distance from 77617
Map of ZIP code 77617
Climate — monthly normals
Warmest month Aug (avg high 92°F), coldest Jan (avg low 43°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 66 | 71 | 77 | 83 | 89 | 91 | 92 | 88 | 81 | 72 | 64 |
| Avg low °F | 43 | 47 | 53 | 59 | 67 | 73 | 75 | 74 | 70 | 60 | 51 | 45 |
| Precip in | 4.6 | 3.1 | 3.6 | 4.4 | 5.4 | 5.8 | 5.7 | 7.0 | 7.0 | 4.8 | 3.9 | 4.5 |
NOAA 1991–2020 climate normals from the nearest station: ANAHUAC (20.6 mi) · NOAA NCEI
Places in ZIP 77617
- 1 restaurants & cafés
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
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