Santa Rosa is a municipality in the Brazilian state of Rio Grande do Sul, located at latitude 27º52'15" and longitude 54º28'53" at a height of 27…Santa Rosa is a municipality in the Brazilian state of Rio Grande do Sul, located at latitude 27º52'15" and longitude 54º28'53" at a height of 277 meters above sea level. It has an area of 488.42 km². Its estimated population is 73,575. It is known as the "National Cradle of Soybeans".