The most important economic activities are cattle raising, royalties from the hydroelectric station on the Rio Grande, commerce, and agriculture. The GDP in 2005 was R$1,035,952, with R$716,164 from industry; R$102,776 from services; and R$18,221 from agriculture. Fronteira is in the top tier of municipalities in the state with regard to economic and social development. As of 2007 there was one banking agency in the town. There was a well-developed retail infrastructure serving the surrounding area of cattle and agricultural lands. In the rural area there were 141 establishments occupying about 1,000 persons. 48 of the farms had tractors, a ratio of one in three. There were 1,889 automobiles in all of the municipality, about one for every 6 inhabitants—a high ratio for Brazil.