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allk12 · Rankings · Lowest proficiency · Georgia · Cobb County

The lowest-performing public schools by test proficiency in Cobb County, Georgia

Across Cobb County, Georgia, 117 public schools are ranked here, ranked by the lowest composite state-assessment proficiency. Riverside Elementary School leads the list at 15.9%, against a median of 45.6% across the ranked schools.

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Schools ranked
117
Cobb County, Georgia
Best % Proficient
15.9%
Median % Proficient
45.6%
LOWEST PROFICIENCY · COBB COUNTY, GEORGIA
#SchoolCityDistrictLevel% FRLStudents% Proficient
1Riverside Elementary SchoolMableton, GACobb CountyElementary100%47115.9%
2Green Acres Elementary SchoolSmyrna, GACobb CountyElementary94.5%58419.0%
3Mableton Elementary SchoolMableton, GACobb CountyElementary100%94521.7%
4Lockheed Elementary SchoolMarietta, GAMarietta CityElementary90.1%73422.0%
5City View Elementary SchoolMableton, GACobb CountyElementary100%87022.2%
6Brumby Elementary SchoolMarietta, GACobb CountyElementary78.3%96322.4%
7Pearson Middle SchoolMarietta, GACobb CountyMiddle100%80622.6%
8Osborne High SchoolMarietta, GACobb CountyHigh100%2,79023.1%
9Compton Elementary SchoolPowder Springs, GACobb CountyElementary100%59324.6%
10Norton Park Elementary SchoolSmyrna, GACobb CountyElementary100%64325.2%
11LaBelle Elementary SchoolMarietta, GACobb CountyElementary100%33925.4%
12Bryant Elementary SchoolMableton, GACobb CountyElementary100%86525.7%
13Argyle Elementary SchoolSmyrna, GACobb CountyElementary99.1%33326.1%
14Hollydale Elementary SchoolMarietta, GACobb CountyElementary100%52626.3%
15Belmont Hills Elementary SchoolSmyrna, GACobb CountyElementary100%26727.0%
16Powers Ferry Elementary SchoolMarietta, GACobb CountyElementary90.3%47527.5%
17South Cobb High SchoolAustell, GACobb CountyHigh90.3%2,08128.6%
18Russell Elementary SchoolSmyrna, GACobb CountyElementary94.9%56829.2%
19Park Street Elementary SchoolMarietta, GAMarietta CityElementary92.4%47629.4%
20Fair Oaks Elementary SchoolMarietta, GACobb CountyElementary100%70330.1%
21Smitha Middle SchoolMarietta, GACobb CountyMiddle99.1%86630.3%
22Milford Elementary SchoolMarietta, GACobb CountyElementary99.0%38930.4%
23Pebblebrook High SchoolMableton, GACobb CountyHigh96.5%2,57430.4%
24Garrett Middle SchoolAustell, GACobb CountyMiddle100%89130.6%
25Birney Elementary SchoolMarietta, GACobb CountyElementary100%72530.8%
26Lindley Middle SchoolMableton, GACobb CountyMiddle100%90531.4%
27Powder Springs Elementary SchoolPowder Springs, GACobb CountyElementary94.8%80532.3%
28Sanders Elementary SchoolAustell, GACobb CountyElementary100%62632.4%
29Betty Gray Middle SchoolMableton, GACobb CountyMiddle99.0%70233.3%
30Dowell Elementary SchoolMarietta, GACobb CountyElementary87.4%89833.4%
31Floyd Middle SchoolMableton, GACobb CountyMiddle100%77634.9%
32Sedalia Park Elementary SchoolMarietta, GACobb CountyElementary67.4%63435.0%
33Hendricks Elementary SchoolPowder Springs, GACobb CountyElementary98.5%53835.0%
34East Cobb Middle SchoolMarietta, GACobb CountyMiddle66.5%1,35236.1%
35Sawyer Road Elementary SchoolMarietta, GAMarietta CityElementary82.9%53336.5%
36McEachern High SchoolPowder Springs, GACobb CountyHigh69.3%2,17537.0%
37Austell Elementary SchoolAustell, GACobb CountyElementary100%36737.7%
38Clay-Harmony Leland Elementary SchoolMableton, GACobb CountyElementary96.7%1,01338.5%
39Barber Middle SchoolAcworth, GACobb CountyMiddle57.8%79039.2%
40Clarkdale Elementary SchoolAustell, GACobb CountyElementary100%78539.5%
41Varner Elementary SchoolPowder Springs, GACobb CountyElementary60.7%70540.6%
42Campbell Middle SchoolSmyrna, GACobb CountyMiddle56.5%1,36841.1%
43Pitner Elementary SchoolAcworth, GACobb CountyElementary56.5%80241.5%
44Blackwell Elementary SchoolMarietta, GACobb CountyElementary53.6%58042.1%
45Marietta High SchoolMarietta, GAMarietta CityHigh56.7%2,52642.1%
46Bells Ferry Elementary SchoolMarietta, GACobb CountyElementary61.5%70442.3%
47Chalker Elementary SchoolKennesaw, GACobb CountyElementary47.6%67942.5%
48Marietta Sixth Grade AcademyMarietta, GAMarietta CityMiddle65.0%67842.7%
49Tapp Middle SchoolPowder Springs, GACobb CountyMiddle87.4%80942.9%
50Dunleith Elementary SchoolMarietta, GAMarietta CityElementary82.9%55442.9%
Page 1 of 3 · top 117 of 117 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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DATA NOTICE

allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.