Alexandria Bay is a village in Jefferson County, New York. It falls within the Town of Alexandria. It is part of the Watertown-Fort Drum Metro Area. It was settled in the early nineteenth century. It has a total area of 1.5 square miles. 0.7 square miles of the area is land, and the rest (about 51% of the total) is water. The village is located on the banks of the Lawrence River. It falls within New York's Thousand Islands region, comprising over 1,700 islands.
Tourism is the most important commercial activity here, with summers seeing a high number of temporary residents. Boating is a popular activity here. One of the popular attractions is the Boldt Castle. The cost of living here is 0.40% lower than the country average.
The area gets 37 inches of rain annually. The number of days with measurable precipitation annually is 146. The amount of snowfall is quite high, about 65 inches annually.