ZIP Code 57078: Yankton, SD
County: Yankton
Coordinates: 42.88210, -97.39860
ZIP Type: Standard
Time Zone: Central Time (CT)
This profile provides an in-depth look at ZIP code 57078, serving Yankton in SD. It lies in Yankton and supports delivery, planning, and address verification.
| Primary City | Yankton |
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| ZIP Code | 57078 |
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| County | Yankton |
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| State | SD |
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| Latitude / Longitude | 42.88210, -97.39860 |
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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 57078 (not an exact boundary).
Geographic & Administrative Context
For mapping and verification, 57078 is commonly represented around 42.88210, -97.39860. These coordinates help identify the general area within Yankton, SD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57078 for mail delivery and general location reference in
Yankton,
SD.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Yankton.
Related ZIP Codes (Nearby)
Explore other postal codes near Yankton within SD.
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Frequently Asked Questions
What is the primary city for ZIP code 57078?
The primary city for this ZIP code is Yankton, located in SD.
In which county is 57078 located?
ZIP code 57078 is situated within Yankton, SD.
What are the coordinates for 57078?
The approximate center point is 42.88210 (Latitude) and -97.39860 (Longitude).
Is ZIP code 57078 active?
This page lists ZIP 57078 as Listed based on the latest refresh date shown above.
Does ZIP 57078 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