Cobb County

Marietta, Georgia · 106,703 students · 110 schools

Enrollment

106,703

Schools

110

Location

Marietta, Georgia

COSMIQ projected accountability rating

F

on Georgia's A-F accountability scale

Confidence 70% Data completeness 100% Based on 2023–24 data

This is an independent estimate generated by COSMIQ's open Rating Predictor from public math & reading proficiency — it is not an official Georgia rating, and states weight many additional factors.

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Proficiency trend

Percent of students proficient on the state assessment.

School yearMathReading / ELA
2015–1651.3%52.3%
2016–1751.8%51.5%
2017–1854.8%53.6%

Where this district could improve

Schools in this district

Campbell High SchoolSmyrna, GA 2,928 students Osborne High SchoolMarietta, GA 2,772 students Walton High SchoolMarietta, GA 2,646 students North Cobb High SchoolKennesaw, GA 2,555 students Pebblebrook High SchoolMableton, GA 2,511 students Wheeler High SchoolMarietta, GA 2,375 students Hillgrove High SchoolPowder Springs, GA 2,363 students McEachern High SchoolPowder Springs, GA 2,327 students South Cobb High SchoolAustell, GA 2,127 students Harrison High SchoolKennesaw, GA 2,121 students Lassiter High SchoolMarietta, GA 1,932 students Sprayberry High SchoolMarietta, GA 1,831 students Pope High SchoolMarietta, GA 1,814 students Kennesaw Mountain High SchoolKennesaw, GA 1,809 students Allatoona High SchoolAcworth, GA 1,694 students Kell High SchoolMarietta, GA 1,506 students East Cobb Middle SchoolMarietta, GA 1,334 students Lovinggood Middle SchoolPowder Springs, GA 1,235 students Dickerson Middle SchoolMarietta, GA 1,223 students Campbell Middle SchoolSmyrna, GA 1,222 students Dodgen Middle SchoolMarietta, GA 1,222 students East Side Elementary SchoolMarietta, GA 1,112 students King Springs Elementary SchoolSmyrna, GA 1,111 students Nickajack Elementary SchoolSmyrna, GA 1,111 students Lindley Middle SchoolMableton, GA 1,096 students Sope Creek Elementary SchoolMarietta, GA 1,079 students Cheatham Hill Elementary SchoolMarietta, GA 1,048 students Cobb Horizon High SchoolAtlanta, GA 1,029 students Durham Middle SchoolAcworth, GA 1,029 students Lost Mountain Middle SchoolKennesaw, GA 1,011 students Teasley Elementary SchoolSmyrna, GA 1,005 students Griffin Middle SchoolSmyrna, GA 994 students McClure Middle SchoolKennesaw, GA 991 students Cooper Middle SchoolAustell, GA 982 students Hightower Trail Middle SchoolMarietta, GA 982 students Daniell Middle SchoolMarietta, GA 981 students Brumby Elementary SchoolMarietta, GA 973 students Mount Bethel Elementary SchoolMarietta, GA 947 students Clay-Harmony Leland Elementary SchoolMableton, GA 939 students Mabry Middle SchoolMarietta, GA 916 students Garrett Middle SchoolAustell, GA 906 students Smyrna Elementary SchoolSmyrna, GA 904 students Murdock Elementary SchoolMarietta, GA 902 students Dowell Elementary SchoolMarietta, GA 898 students Mableton Elementary SchoolMableton, GA 898 students Kemp Elementary SchoolPowder Springs, GA 886 students City View Elementary SchoolMableton, GA 883 students Smitha Middle SchoolMarietta, GA 881 students Barber Middle SchoolAcworth, GA 877 students Tapp Middle SchoolPowder Springs, GA 873 students Bryant Elementary SchoolMableton, GA 865 students Pearson Middle SchoolMarietta, GA 860 students Floyd Middle SchoolMableton, GA 845 students Mountain View Elementary SchoolMarietta, GA 845 students Simpson Middle SchoolMarietta, GA 844 students Hayes Elementary SchoolKennesaw, GA 841 students Palmer Middle SchoolKennesaw, GA 828 students Powder Springs Elementary SchoolPowder Springs, GA 823 students Tritt Elementary SchoolMarietta, GA 803 students Bullard Elementary SchoolKennesaw, GA 801 students Pitner Elementary SchoolAcworth, GA 796 students Baker Elementary SchoolAcworth, GA 785 students Still Elementary SchoolPowder Springs, GA 782 students Varner Elementary SchoolPowder Springs, GA 766 students Fair Oaks Elementary SchoolMarietta, GA 761 students Ford Elementary SchoolAcworth, GA 757 students Frey Elementary SchoolAcworth, GA 755 students Bells Ferry Elementary SchoolMarietta, GA 716 students Eastvalley Elementary SchoolMarietta, GA 703 students Clarkdale Elementary SchoolAustell, GA 700 students Birney Elementary SchoolMarietta, GA 688 students Pickett's Mill Elementary SchoolAcworth, GA 686 students Chalker Elementary SchoolKennesaw, GA 674 students Norton Park Elementary SchoolSmyrna, GA 673 students Garrison Mill Elementary SchoolMarietta, GA 650 students Due West Elementary SchoolMarietta, GA 636 students Vaughan Elementary SchoolPowder Springs, GA 634 students Blackwell Elementary SchoolMarietta, GA 632 students Awtrey Middle SchoolKennesaw, GA 626 students Shallowford Falls Elementary SchoolMarietta, GA 622 students

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About this profile. COSMIQ is an independent, free AI tutoring service and is not affiliated with, endorsed by, or sponsored by Cobb County, Georgia, or any government education agency. All figures are drawn from public U.S. Department of Education data (NCES Common Core of Data and EDFacts). Any projected rating is an independent estimate, not an official score. COSMIQ does not collect or publish user reviews or ratings of schools.

Data last refreshed August 7, 2026.