Four is the most important number to emerge from the final day of qualifying for elections in Cobb County.

Four Democrats are challenging Annette Kesting, who is seeking a second term representing southwest Cobb County on the county commission.

Four Republicans want a crack at the school board seat in East Cobb being vacated by Johnny Johnson.

As the weeklong period to file for the July 15 primary election closed, seven Republican incumbents in Cobb had no primary opposition, and five of them, including Commission Chairman Sam Olens, saw no Democrat file to run against them in November.

Here are the final line-ups:

County Commission Chairman

Sam Olens, Republican, incumbent

County Commission District 2

James Royal, Democrat

Bob Ott, Republican

Ron Sifen, Republican

Joe L. Thompson, Republican incumbent

County Commission, District 4

Clarice Barber-Page, Democrat

Elma Forest, Democrat

Annette Kesting, Democrat

Michael Rhett, Democrat

George "Woody" Thompson, Democrat

Barbara Hickey, Republican

School Board Post 1

Tim Brew, Democrat

Lynnda Crowder-Eagle, Republican

School Board Post 3

Betty Gray, Democrat, incumbent

David Morgan, Democrat

Steven Lahr, Republican

School Board Post 5

Thomasina Johnson, Democrat

Linda Schwartz, Democrat

David Banks, Republican

Vicki Griffin,Republican

Al Meyer, Republican

Darryl Wilson, Republican

School Board Post 7

Alison Bartlett, Democrat

Ron Younker, Republican

Sheriff

Gregory B. Gilstrap, Democrat

Neil Warren, Republican, incumbent

Surveyor

Matt Wellborn, Republican

Donald Perryman, Republican, incumbent

Probate Judge

Carletta Sims, Democrat

Kelli Wolk, Republican

Tax Commissioner

B. Gail Downing, Republican, incumbent

Superior Court Clerk

Jay C. Stephenson, Republican, incumbent

State Court Clerk

Diane B. Webb, Republican, incumbent

District Attorney

Pat H. Head, Republican, incumbent

Chief Magistrate

Frank R. Cox, Republican, incumbent

Normarene Merritt, Democrat