San Juan La Laguna is a municipality on the southern shore of Lago de Atitlán, Sololá, Guatemala. It consists of the village named San Juan La Laguna and three smaller aldeas (small villages) in the nearby mountain. The population is approximately 95% Tz'utujil. Agriculture is most important for the economy, with the service sector growing, especially as the number of tourists increase. The lowest elevation is the shore of Lago Atitlán at 1,562 metres (5,125 ft).