David Chastain, a Republican, is running for re-election to the Cobb County School Board representing District 4 in the Tuesday, Nov. 3, 2026, general election. He faces Democratic challenger Micheal Garza.
Chastain is seeking his fourth term on the board, according to the Cobb County Courier. District 4, also known as Post 4, covers the Kell, Lassiter and Sprayberry high school attendance zones, an area that includes parts of East Cobb.
Candidate information
Party: Republican
Office sought: Cobb County School Board, District 4
Election date: Tuesday, Nov. 3, 2026
Education: High school diploma, Joseph Wheeler High School, 1975. Bachelor's degree in urban economics, University of Georgia, 1979.
Experience and public service
Chastain has served on the Cobb County School Board representing Post 4 since 2015, according to BallotReady profile data. The board elected him vice-chair for 2026.
Before joining the school board, Chastain built a career in sales and engineering. He worked as a sales consultant at Marshall Homes from 1983 to 1984, according to BallotReady. He then served as district sales manager at Lagasse Brothers Inc. from 1984 to 1988 and as regional sales manager at Star Paper Tube from 1988 to 1994.
Chastain worked as a field sales support systems engineer Sr. at Lockheed Martin Aeronautics from 1997 to 2024, according to BallotReady.
The race
Chastain's challenger, Micheal Garza, is running as a Democrat, according to BallotReady election data. District 4 families send students to Kell, Lassiter and Sprayberry high schools and their feeder schools.
Sources: Public campaign materials, published candidate profiles and the public records linked above. Policy statements are attributed to the candidate; funding or implementation details are included where available.
The East Cobb Beacon did not receive a direct questionnaire response from the candidate and does not endorse candidates.
