ZIP code · Armstrong · Texas · United States
ZIP code 78338 — Armstrong
ZIP code 78338 serves Armstrong, Texas.
- Postal code
- 78338Single source Value from one source, not cross-checked.
- City
- Armstrong
- County
- Kenedy FIPS 48261
- State
- Texas
- Country
- United States
- Coordinates
- 26.8698, -97.7698 — precision precise (locality)
View on OpenStreetMap - Population
- 0 (ZCTA, ACS 5-year)
- Population density
- 0 / sq mi
- Land area
- 51.7 sq mi (133.9 km²) (ZCTA, ACS 5-year)
- Households
- 0
- Housing units
- 0
- Congressional district
- TX-34 (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
- 361Telephone 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 78338 with another ZIP · ZIPs within 25 miles · distance from 78338
Map of ZIP code 78338
Climate — monthly normals
Warmest month Aug (avg high 98°F), coldest Jan (avg low 45°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 70 | 75 | 80 | 86 | 91 | 96 | 96 | 98 | 94 | 88 | 79 | 73 |
| Avg low °F | 45 | 50 | 55 | 61 | 69 | 72 | 73 | 73 | 70 | 62 | 54 | 48 |
| Precip in | 1.1 | 1.3 | 1.3 | 1.5 | 2.9 | 3.2 | 2.5 | 2.5 | 5.2 | 3.3 | 2.0 | 1.3 |
NOAA 1991–2020 climate normals from the nearest station: ARMSTRONG 4SE (4.5 mi) · NOAA NCEI
Places in ZIP 78338
- 1 schools
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