Las Rosas is a city and municipality in the Mexican state of Chiapas in southern Mexico. As of 2010, the municipality had a total population of 25,530, up from 21,100 as of 2005. It covers an area of 233.5 km². As of 2010, the city of Las Rosas had a population of 18,817. Other than the city of Las Rosas, the municipality had 130 localities, none of which had a population over 1,000. In June 2020 some inhabitants attacked the vehicles of health workers, believing that dengue and coronavirus precautions were measures to wipe out the local population.