-If his name is Republica de Curitiba Memes, he is from Curitiba.
Captain Obvious about RDC Memes

Republica de Curitiba Memes (or RDC Memes) is a channel based on a memes page on Facebook of the same name, born in Curitiba, in the state of Paraná, Brazil (hence the name Republica de Curitiba Memes)

Since 2016 making the most delicious memes of Curitiba

Sign up and enjoy the page Facebook Page(In Brazilian Portuguese)
www.facebook.com/RDCMemes/