allk12 · Rankings · Highest proficiency · Georgia · Cobb County · High schools

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

17 public high schools in Cobb County, Georgia appear in this ranking of the highest-performing public high schools by test proficiency, ranked by composite state-assessment proficiency. Lassiter High School leads the list at 79.7%, against a median of 54.4% across the ranked schools.

The table below is sortable and filterable, and the full list downloads as a CSV. Figures come from federal NCES enrollment data and, where applicable, state assessment results for 2024-25.

Schools ranked

Cobb County, Georgia

Top % Proficient

79.7%

Median % Proficient

54.4%

HIGHEST PROFICIENCY · COBB COUNTY, GEORGIA

#	School	City	District	Level	% FRL	Students	% Proficient
1	Lassiter High School	Marietta, GA	Cobb County	High	13.6%	2,005	79.7%
2	Walton High School	Marietta, GA	Cobb County	High	7.6%	2,705	79.0%
3	Pope High School	Marietta, GA	Cobb County	High	10.1%	1,793	78.3%
4	Kennesaw Mountain High School	Kennesaw, GA	Cobb County	High	40.6%	1,695	73.8%
5	Harrison High School	Kennesaw, GA	Cobb County	High	16.0%	2,224	72.4%
6	Hillgrove High School	Powder Springs, GA	Cobb County	High	30.3%	2,282	68.7%
7	Kell High School	Marietta, GA	Cobb County	High	43.2%	1,587	67.3%
8	Allatoona High School	Acworth, GA	Cobb County	High	29.4%	1,560	62.1%
9	Wheeler High School	Marietta, GA	Cobb County	High	48.9%	2,401	54.4%
10	North Cobb High School	Kennesaw, GA	Cobb County	High	49.9%	2,463	53.5%
11	Campbell High School	Smyrna, GA	Cobb County	High	52.1%	3,085	50.8%
12	Sprayberry High School	Marietta, GA	Cobb County	High	48.6%	1,769	43.5%
13	Marietta High School	Marietta, GA	Marietta City	High	56.7%	2,526	42.1%
14	McEachern High School	Powder Springs, GA	Cobb County	High	69.3%	2,175	37.0%
15	Pebblebrook High School	Mableton, GA	Cobb County	High	96.5%	2,574	30.4%
16	South Cobb High School	Austell, GA	Cobb County	High	90.3%	2,081	28.6%
17	Osborne High School	Marietta, GA	Cobb County	High	100%	2,790	23.1%

Page 1 of 1 · top 17 of 17 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.