Sebastian, TX ZIP code
The ZIP code for Sebastian, Texas is 78594. It is in Willacy County.
- Population in these ZIPs
- 1,206
- Avg. median income
- $23,300population-weighted
- Typical home value
- $100,700population-weighted
- Metro area
- Raymondville, TX
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Sebastian, TX ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 78594 | 1,206 | $23,307 | $100,700 |
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
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Frequently asked questions
What is the ZIP code for Sebastian, TX?
The ZIP code for Sebastian, TX is 78594.
What county is Sebastian, Texas in?
Sebastian ZIP codes are in Willacy County.