Castell ZIP code, Texas
The ZIP code for Castell, TX is 76831, and its area code is 325.
- USPS city name
- 1 ZIP code
- Population
- 0
- Area code
- 325
- County
- Llano County
- State
- Texas
NANPA lists no telephone rate centre for Castell itself, so these are the area codes of the nearest one, Pontotoc (10.6 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes addressed as Castell
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
76831 | Castell , TX | Standard | 0 | — | — |
Map of Castell ZIP codes
The ZIP codes of Castell, TX, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Castell
| Town | Population | Distance |
|---|---|---|
| Llano | 3,494 | 16.7 mi |
More nearby: every ZIP code in Llano County · Texas ZIP codes
Cite this page
zipcodes.pro. “Castell, TX ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/tx/castell
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