ZIP code · San Diego · Texas · United States
ZIP code 78384 — San Diego
ZIP code 78384 serves San Diego, Texas.
- Postal code
- 78384Single source Value from one source, not cross-checked.
- City
- San Diego
- County
- Duval FIPS 48131
- State
- Texas
- Country
- United States
- Coordinates
- 27.7654, -98.2503 — precision precise (locality)
View on OpenStreetMap - Population
- 5,656 (ZCTA, ACS 5-year)
- Population density
- 10 / sq mi
- Land area
- 591.4 sq mi (1,531.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $44,228
- Per-capita income
- $18,979
- Median age
- 35.4
- Households
- 1,679
- Housing units
- 2,212
- Median home value
- $59,400
- Median gross rent
- $993 / month
- Congressional districts
- TX-28 (also TX-15) (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 78384 with another ZIP · ZIPs within 25 miles · distance from 78384
Map of ZIP code 78384
Climate — monthly normals
Warmest month Aug (avg high 97°F), coldest Jan (avg low 47°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 68 | 73 | 79 | 86 | 90 | 96 | 97 | 97 | 93 | 87 | 77 | 71 |
| Avg low °F | 47 | 52 | 58 | 64 | 71 | 75 | 76 | 76 | 73 | 65 | 56 | 50 |
| Precip in | 1.3 | 1.4 | 1.7 | 1.0 | 3.5 | 2.3 | 2.5 | 2.6 | 5.3 | 2.7 | 1.6 | 1.3 |
NOAA 1991–2020 climate normals from the nearest station: ALICE (11.4 mi) · NOAA NCEI
Places in ZIP 78384
- 3 schools
- 1 restaurants & cafés
- 3 parks
- 3 police & fire stations
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