Summary:
Zip code 30068 in Marietta, Georgia, is home to four elementary schools serving grades PK-5 within the Cobb County School District, offering a striking mix of academic outcomes that range from top-tier state performers to schools near the state average.
Families in this area will find two standout schools leading the pack. Mount Bethel Elementary School is the largest school in the group with 898 students and has held a 5-star rating for three consecutive years, ranking in the 98th percentile statewide. Its 4th grade math proficiency of 91.5% is the highest single subject-grade score among all four schools. Timber Ridge Elementary School has been the top-ranked school in the zip code for the past two years, reaching the 99th percentile, though its ranking slipped to the 95th percentile in 2025-2026—a trend worth monitoring. Both schools have exceptionally low chronic absenteeism rates (2.1% and 3.2%, respectively) and serve very few economically disadvantaged students, with fewer than 8% receiving free/reduced lunch.
In contrast, Sedalia Park Elementary School is the lowest-performing school in the area with a 2-star rating and a 50th percentile ranking, while Eastvalley Elementary School sits in the middle with a steady 4-star rating. These two schools serve significantly more economically disadvantaged populations (67.35% and 42.12% free/reduced lunch, respectively) and have higher chronic absenteeism rates (22.1% and 11.6%). Interestingly, both schools actually spend more per student than the higher-performing schools, suggesting that funding alone does not drive outcomes. Sedalia Park has shown modest improvement in its state ranking over three years, while Eastvalley displays an unusual pattern with 4th grade math scores falling below district averages despite strong 3rd and 5th grade performance.
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