ZIP Code 57239: Grenville, SD
County: Day
Coordinates: 45.50970, -97.30920
ZIP Type: Standard
Time Zone: Central Time (CT)
This profile provides an in-depth look at ZIP code 57239, serving Grenville in SD. It lies in Day and supports delivery, planning, and address verification.
| Primary City | Grenville |
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| ZIP Code | 57239 |
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| County | Day |
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| State | SD |
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| Latitude / Longitude | 45.50970, -97.30920 |
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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 57239 (not an exact boundary).
Geographic & Administrative Context
For mapping and verification, 57239 is commonly represented around 45.50970, -97.30920. These coordinates help identify the general area within Day, SD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57239 for mail delivery and general location reference in
Day,
SD.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Grenville.
Related ZIP Codes (Nearby)
Explore other postal codes near Grenville within SD.
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Frequently Asked Questions
What is the primary city for ZIP code 57239?
The primary city for this ZIP code is Grenville, located in SD.
In which county is 57239 located?
ZIP code 57239 is situated within Day, SD.
What are the coordinates for 57239?
The approximate center point is 45.50970 (Latitude) and -97.30920 (Longitude).
Is ZIP code 57239 active?
This page lists ZIP 57239 as Listed based on the latest refresh date shown above.
Does ZIP 57239 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