Martindale, TX ZIP code
The ZIP code for Martindale, Texas is 78655. It is in Caldwell County.
- Population in these ZIPs
- 3,730
- Avg. median income
- $56,000population-weighted
- Typical home value
- $329,500population-weighted
- Metro area
- Austin-Round Rock-San Marcos, TX
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Martindale, TX ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 78655 | 3,730 | $55,952 | $329,500 |
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 Martindale, TX?
The ZIP code for Martindale, TX is 78655.
What county is Martindale, Texas in?
Martindale ZIP codes are in Caldwell County.