Incumbent Republican Joseph G. Di Pinto has represented the 4th district since 1986. DiPinto didn't seek re-election and Democrat Gerald Brady won the open seat.
Democratic primary
Delaware House of Representatives 4th district Democratic primary election, 2006
Incumbent Democrat John Van Sant III has represented the 13th district since 1982. Van Sant didn't seek re-election and fellow Democrat Larry Mitchell won the open seat.
Democratic primary
Delaware House of Representatives 13th district Democratic primary election, 2006
Incumbent Republican Roger Roy has represented the 20th district since 1976. Roy didn't seek re-election and fellow Republican Nick Manolakos won the open seat.
Republican primary
Delaware House of Representatives 20th district Republican primary election, 2006
Incumbent Republican turned Independent Wallace Caulk Jr. has represented the 33rd district since 1984. Caulk didn't seek re-election and Democrat Robert Walls won the open seat.
Republican primary
Delaware House of Representatives 33rd district Republican primary election, 2006
Incumbent Republican Gerald Buckworth has represented the 34th district since 1980. Buckworth didn't seek re-election and fellow Republican Donald Blakey won the open seat.
Delaware House of Representatives 34th district general election, 2006
Incumbent Republican Tina Fallon has represented the 39th district since 1978. Fallon didn't seek re-election and fellow Republican Daniel Short won the open seat.
Delaware House of Representatives 39th district general election, 2006