Haverford Commissioner Andy Lewis, Middletown Councilwoman Christine Fizzano Cannon and Springfield Commissioner Tom McGarrigle will join incumbent Republicans Linda Cartisano and Jack Whelan on the five-member board.
Despite all the talk of the Democrats' momentum this year, the Republican GOP trio handily defeated Landau, the Nether Providence Democratic leader, as well as his running mates Ann O'Keefe and John Innelli.
With 94 percent of precincts reporting, it was a blowout. Landau, the top Democratic vote-getter fell 13,400 votes short of Lewis, the third-place finisher.
Republicans appeared to be holding onto power late last night throughout the Philadelphia suburbs.
In the Chester County commissioners' race, with 57 percent of precincts reporting at 11:30 p.m., Republicans Carol Aichele and Terence Farrell were leading the Democrats.
Republicans Jim Matthews and Bruce Castor were out front by slimmer margins in Montgomery County, with 49 percent of precincts reporting, as were Bucks County Republicans Charles Martin and Jim Cawley, with 80 percent of Bucks' precincts reporting.
"Our positive message really resonated with voters," Fizzano Cannon said from Springfield Country Club, where Delco Republicans were celebrating. "They really did their homework and voted for qualifications and experience at the end of the day."
The Delaware County Council oversees a $305 million general-fund budget, another $260 million in state and federal grants and 3,100 full-time county workers.
They're powerful positions - too powerful, Landau argued, for one party to hold them all.
Voters didn't think so.
The Republicans were able to win in Delaware County with the help of solid fundraising - their main campaign fund brought in $670,000 between Jan. 1 and Oct. 22 - and by relying on their bread-and-butter message: low taxes.