Espumoso is a municipality in the state of Rio Grande do Sul, Brazil. It belongs to the mesoregion "Nordeste Rio Grandense" and the micror…Espumoso is a municipality in the state of Rio Grande do Sul, Brazil. It belongs to the mesoregion "Nordeste Rio Grandense" and the microregion of "Cruz Alta" along with other 13 municipalities (Alto Alegre, Boa Vista do Cadeado, Boa Vista do Incra, Campos Borges, Cruz Alta, Fortaleza dos Valos, Ibirubá, Jacuizinho, Joia, Quinze de Novembro, Saldanha Marinho, Salto do Jacuí and Santa Bárbara do Sul. The estimated population in 2020 was 15,591 inhabitants, and its total area corresponds to 783.065 km².