The fresh installments are to premiere next fall.
The show about unruly park rangers is executive produced by Daniel Tosh and creators Waco O'Guin and Roger Black.
Among the celebrities who will continue lending their voice talents to characters on the show are Tosh, Black, Kaitlin Olson, Tom Kenny, David Herman and Jerry Minor.
The renewal was announced Friday by Kent Alterman, the network's head of original programming and production.
"We are happy to continue educating America's youth about nature and the national conservation movement," Alterman said in a statement.
"This is incredible news," said O'Guin. "I can't wait to get more angry phone calls from my mother."
"Now I can pay off my Chevy Cobalt," said Black.
"Brickleberry" kicked off its first season Sept. 25.