ZIP Code 49240: Grass Lake, MI
County: Jackson
Coordinates: 42.27110, -84.19400
ZIP Type: Standard
Time Zone: Eastern Time (ET)
This profile provides an in-depth look at ZIP code 49240, serving Grass Lake in MI. It lies in Jackson and supports delivery, planning, and address verification.
| Primary City | Grass Lake |
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| ZIP Code | 49240 |
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| County | Jackson |
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| State | MI |
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| Latitude / Longitude | 42.27110, -84.19400 |
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| ZIP Type | Standard |
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| Time Zone | Eastern Time (ET) |
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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 49240 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 49240 is approximately 42.27110 (latitude) and -84.19400 (longitude). This location sits within Jackson, contributing to regional planning across MI.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 49240 for mail delivery and general location reference in
Jackson,
MI.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Grass Lake.
Related ZIP Codes (Nearby)
Explore other postal codes near Grass Lake within MI.
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Frequently Asked Questions
What is the primary city for ZIP code 49240?
The primary city for this ZIP code is Grass Lake, located in MI.
In which county is 49240 located?
ZIP code 49240 is situated within Jackson, MI.
What are the coordinates for 49240?
The approximate center point is 42.27110 (Latitude) and -84.19400 (Longitude).
Is ZIP code 49240 active?
This page lists ZIP 49240 as Listed based on the latest refresh date shown above.
Does ZIP 49240 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