San Diego, TX ZIP code
The ZIP code for San Diego, Texas is 78384. It is in Duval County.
- Population in these ZIPs
- 5,747
- Avg. median income
- $47,600population-weighted
- Typical home value
- $91,100population-weighted
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San Diego, TX ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 78384 | 5,747 | $47,603 | $91,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near San Diego
- Benavides 11 mi
- Freer 15 mi
- Alice 23 mi
- Ben Bolt 25 mi
- Realitos 25 mi
- Bruni 26 mi
- Concepcion 27 mi
- Orange Grove 30 mi
- Premont 30 mi
- Agua Dulce 33 mi
- George West 39 mi
- Sandia 40 mi
Frequently asked questions
What is the ZIP code for San Diego, TX?
The ZIP code for San Diego, TX is 78384.
What county is San Diego, Texas in?
San Diego ZIP codes are in Duval County.