Joe Knollenberg was elected to the U.S. House in 1992, defeating Democrat Walter Briggs with 59 percent of the vote. He was re-elected in 1994 with 68 percent, defeating Democrat Mike Breshgold. In 1996, he was re-elected with 61 percent of the vote against Democrat Morris Frumin. Knollenberg was re-elected in 1998, defeating Democrat Travis Reeds with 64 percent of the vote.
In 2000, he was re-elected with 56 percent of the vote over attorney Matthew Frumin.
He defeated David Fink in 2002 with 58 percent of the vote.