ZIP Code 78017: Dilley, TX
County: Frio
Coordinates: 28.67820, -99.17470
ZIP Type: Standard
Time Zone: Central Time (CT)
This profile provides an in-depth look at ZIP code 78017, serving Dilley in TX. It lies in Frio and supports delivery, planning, and address verification.
| Primary City | Dilley |
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| ZIP Code | 78017 |
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| County | Frio |
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| State | TX |
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| Latitude / Longitude | 28.67820, -99.17470 |
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| ZIP Type | Standard |
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| Time Zone | Central Time (CT) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 78017 (not an exact boundary).
Geographic & Administrative Context
Coordinates for 78017 are listed as 28.67820 / -99.17470, useful for GPS and service checks in and around Dilley, TX.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 78017 for mail delivery and general location reference in
Frio,
TX.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Dilley.
Related ZIP Codes (Nearby)
Explore other postal codes near Dilley within TX.
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Frequently Asked Questions
What is the primary city for ZIP code 78017?
The primary city for this ZIP code is Dilley, located in TX.
In which county is 78017 located?
ZIP code 78017 is situated within Frio, TX.
What are the coordinates for 78017?
The approximate center point is 28.67820 (Latitude) and -99.17470 (Longitude).
Is ZIP code 78017 active?
This page lists ZIP 78017 as Listed based on the latest refresh date shown above.
Does ZIP 78017 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08