ZIP Code 78156: Seguin, TX
County: Guadalupe
Coordinates: 29.61180, -97.97120
ZIP Type: Standard
Time Zone: Central Time (CT)
This profile provides an in-depth look at ZIP code 78156, serving Seguin in TX. It lies in Guadalupe and supports delivery, planning, and address verification.
| Primary City | Seguin |
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| ZIP Code | 78156 |
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| County | Guadalupe |
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| State | TX |
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| Latitude / Longitude | 29.61180, -97.97120 |
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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 78156 (not an exact boundary).
Geographic & Administrative Context
Coordinates for 78156 are listed as 29.61180 / -97.97120, useful for GPS and service checks in and around Seguin, TX.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 78156 for mail delivery and general location reference in
Guadalupe,
TX.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Seguin.
Related ZIP Codes (Nearby)
Explore other postal codes near Seguin within TX.
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Frequently Asked Questions
What is the primary city for ZIP code 78156?
The primary city for this ZIP code is Seguin, located in TX.
In which county is 78156 located?
ZIP code 78156 is situated within Guadalupe, TX.
What are the coordinates for 78156?
The approximate center point is 29.61180 (Latitude) and -97.97120 (Longitude).
Is ZIP code 78156 active?
This page lists ZIP 78156 as Listed based on the latest refresh date shown above.
Does ZIP 78156 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