Laguna is a Brazilian municipality located in the southern state of Santa Catarina, 120 kilometers south of the state's capital, Florianópolis, and north east of Porto Alegre. Its coordinates are 28.48/28°28'57" S and the longitude is 48.779/48°46'51" W. In 2004, the population was 48,956 and the area was 445.24 km². Elevation is 2 m.