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Three Mile Bay is located in Jefferson County, New York, United States.
Parent jurisdiction: Jefferson County, New York
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Three Mile Bay is a hamlet located in Jefferson County, New York, with a current population of approximately 1,000 residents, according to the 2020 U.S. Census. This small community is situated along the eastern shore of Lake Ontario and is part of the town of Lyme. Notable landmarks in the area include the Three Mile Bay Lighthouse, which serves as a historical marker of the region's maritime heritage, and the nearby Point Peninsula, known for its recreational opportunities and scenic views.
Economically, Three Mile Bay has a history rooted in agriculture and fishing, which have been significant contributors to the local economy. The hamlet is also in proximity to the Thousand Islands region, a popular tourist destination that boosts local businesses, especially during the summer months. The local government is represented by the Town of Lyme Board, which includes Supervisor Scott D. Dyer and Council Members such as John H. McCauley and Patricia A. McCarthy. Regular town board meetings are held on the second Monday of each month at the Lyme Town Hall, providing residents with opportunities to engage in local governance.
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