Saint Johnsbury, VT is a city located in Caledonia County, Vermont and has a land area of 88.79 square miles (229.97 km2). The water area for the city is 2.41 square miles or 6.24 km2. There is one unique zip code in Saint Johnsbury, Vermont and it is 05819. The area code(s) for Saint Johnsbury is 802.
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