About Area Code 231
- Region Code
- 231
- City
- Traverse City
- State
- Michigan
- Largest City
- Muskegon
- Time Zone
- Eastern Time
Michigan
(231) Area Code 231 — Traverse City, Michigan
231 Area Code – Traverse City, Michigan: Location, Time Zone & History
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Map of Area Code 231
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History & Cultural Notes
Michigan's northwestern Lower Peninsula carries a distinct regional identity, and 231 is part of that story: the code went into service in 1999 when it was split off from area code 616, which had previously covered the entire western half of the peninsula. Taking the northern share of that territory, 231 lines up with a stretch of land long defined by its relationship to Lake Michigan's eastern shoreline.
Traverse City, the code's primary city, is closely tied to that identity through the National Cherry Festival, a celebration reflecting the area's standing as a major U.S. tart cherry growing region. The surrounding shoreline is also known as a summer resort and wine-tourism destination, giving the area a seasonal, visitor-oriented character built around orchards, vineyards, and small lakeside communities rather than a single dominant city. Beyond Traverse City and Muskegon, the numbering plan area extends to Petoskey, Cadillac, Ludington, and Big Rapids, reinforcing a pattern of dispersed small towns across the northern peninsula.
That blend of seasonal tourism and small-town life sits alongside a broader economic base, including:
- Tourism and hospitality
- Agriculture, particularly fruit growing and orchards
- Manufacturing
- Healthcare
- Higher education