How many people learn German in Brazil? About 70,000

Deutsche Welle in Portuguese has the answer here, which says that the number of students in Brazil learning German has more than doubled over the past decade from 30,000 (1995), to 70,000 now, and that the German government invests 7.5 million euros per year to teach German in Brazil, the country in Latin America that receives the largest investment from them for teaching German - one sixth of the budget for teaching German in Latin America goes to Brazil.

Some other numbers:

The Goethe Institute has 13 locations in Latin America, of which five are in Brazil, making up 36.5% of the students in the region - 7,642 students were learning at the institute in Brazil in 2008.

The ZfA (Zentralstelle für das Auslandsschulwesen, an organization for German schools abroad) has 23 partner schools in Brazil with 22,000 students. Four of these schools allow the students to get the German Abitur.