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St. Lawrence County, New York Guide
St. Lawrence county is bordered by Canada and the New York counties of Franklin, Jefferson, Hamilton, Lewis, and Herkimer.
County Formed: 1802
Parent County: Clinton
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Officially formed on March 3, 1802 from parts of Clinton County that had only been recently acquired from Montgomery and Herkimer Counties, St. Lawrence County is named after the river that serves as the county’s northern boundary.