Instituto Geográfico e Cartográfico is the institute of cartography and geographic studies of the state of São Paulo, Brazil.
According to PR-model, igc.sp.gov.br is ranked 36,236th in multilingual Wikipedia, in particular this website is ranked 927th in Portuguese Wikipedia.
The website is placed before dreamofficial.com and after radicali.it in the BestRef global ranking of the most important sources of Wikipedia.