ZIP Code 57042: Madison, SD
County: Lake
Coordinates: 44.00540, -97.11490
ZIP Type: Standard
Time Zone: Central Time (CT)
Explore detailed information for ZIP code 57042 in Madison, SD. We include verified county details for Lake plus key geographic references used for mapping and logistics.
| Primary City | Madison |
| ZIP Code | 57042 |
| County | Lake |
| State | SD |
| Latitude / Longitude | 44.00540, -97.11490 |
| ZIP Type | Standard |
| Time Zone | Central Time (CT) |
| 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 57042 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 57042 is approximately 44.00540 (latitude) and -97.11490 (longitude). This location sits within Lake, contributing to regional planning across SD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57042 for mail delivery and general location reference in
Lake,
SD.
This ZIP may extend beyond the city core into nearby communities within Lake.
Related ZIP Codes (Nearby)
Explore other postal codes near Madison within SD.
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Frequently Asked Questions
What is the primary city for ZIP code 57042?
The primary city for this ZIP code is Madison, located in SD.
In which county is 57042 located?
ZIP code 57042 is situated within Lake, SD.
What are the coordinates for 57042?
The approximate center point is 44.00540 (Latitude) and -97.11490 (Longitude).
Is ZIP code 57042 active?
This page lists ZIP 57042 as Listed based on the latest refresh date shown above.
Does ZIP 57042 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