The county of Jefferson is located in New York and was founded in 1805. There are 116,229 residents in Jefferson who have access to courthouses in Cape Vincent. In general, each county has a full set of courts, from traffic court to superior and appellate court; supreme courts are usually located in the state capital. New York is part of the 2nd federal circuit court as well.
There are 2,777 residents in Cape Vincent, which is 89.8 square miles.