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Public School Review - Established 2003

Cobb County School District

514 Glover Street
Marietta, GA 30060
(District boundaries shown in map)
: 
9/
10
Top 20%
Tel: (770) 426-3300

Top Rankings

Cobb County School District ranks among the top 20% of public school district in Georgia for:

Category
Attribute
Overall Rank
Highest overall rank (Top 20%)
Math Proficiency
Highest math proficiency (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 20%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2026 school year, there are 28 public middle schools serving 24,934 students in Cobb County School District. This district's average middle testing ranking is 9/10, which is in the top 20% of public middle schools in Georgia.
Public Middle Schools in Cobb County School District have an average math proficiency score of 44% (versus the Georgia public middle school average of 35%), and reading proficiency score of 48% (versus the 39% statewide average).
Minority enrollment is 68% of the student body (majority Black and Hispanic), which is more than the Georgia public middle school average of 66% (majority Black).

Overview

This School District
This State (GA)
# Schools
110 Schools
663 Schools
# Students
105,738 Students
454,553 Students
# Teachers
7,477 Teachers
32,065 Teachers
Student-Teacher Ratio
14:1
14:1

Student By Grade

Comparison of Students By Grade Trends

GradeCobb County School DistrictGeorgia
4125
5333
67,782533
78,045557
88,265564
915536
1021330
1119125
1227922
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District Rank

Cobb County School District, which is ranked within the top 20% of all 219 school districts in Georgia (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 88% has increased from 85% over five school years.
Definition of Terms
This School District
State Average (GA)
#32 out of 222 school districts
(Top 20%)

Overall School District Rank Trends

YearCobb County School District
2023#32
2022#30
2021#44
2019#22
2018#29
2017#17
2016#22
2015#14
2014#36
2013#32
2012#28
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47%
39%

Math Proficiency Trends

YearCobb County School DistrictGeorgia
202347%39%
202247%37%
202139%36%
201954%44%
201852%42%
201751%41%
201650%41%
201546%38%
201484%79%
201389%83%
201287%81%
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50%
40%

Reading and Language Arts Proficiency Trends

YearCobb County School DistrictGeorgia
202250%40%
202145%39%
201955%45%
201852%42%
201753%41%
201651%40%
201550%39%
201497%94%
201396%93%
201296%93%
201194%91%
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47%
40%

Science Proficiency Trends

YearCobb County School DistrictGeorgia
202247%40%
202145%38%
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88%
84%

Graduation Rate Trends

YearCobb County School DistrictGeorgia
202388%84%
202287%84%
202187%84%
202089%85%
201987%83%
201885%83%
201784%82%
201684%81%
201581%81%
201478%75%
201377%74%
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Students by Ethnicity:

0.74
0.71

Comparison of Diversity Score Trends

YearCobb County School DistrictGeorgia
20240.740.71
20230.730.71
20220.730.70
20210.730.70
20200.720.69
20190.720.69
20180.710.68
20170.710.68
20160.700.68
20150.700.67
20140.700.67
20130.690.67
20120.690.66
20110.680.66
20100.660.65
20090.660.64
20080.650.64
20070.640.63
20060.640.61
20050.620.61
20040.580.59
20030.560.58
20020.540.57
20010.510.56
20000.480.55
19990.450.54
19980.430.54
19970.390.53
19960.370.52
19950.350.52
19940.330.51
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% American Indian
n/a
n/a
% Asian
6%
5%

Asian Student Percentage Comparison Over Years (1994-2024)

YearCobb County School DistrictGeorgia
20246%5%
20237%5%
20226%5%
20216%5%
20206%4%
20196%4%
20186%4%
20176%4%
20165%4%
20156%4%
20145%4%
20135%4%
20125%4%
20115%4%
20106%4%
20096%4%
20086%4%
20076%4%
20065%4%
20056%4%
20044%3%
20035%3%
20024%2%
20014%2%
20003%2%
19993%2%
19983%2%
19973%2%
19963%2%
19953%2%
19943%1%
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% Hispanic
27%
18%

Hispanic Student Percentage Comparison Over Years (1994-2024)

YearCobb County School DistrictGeorgia
202426%19%
202325%18%
202224%18%
202124%17%
202022%16%
201922%16%
201821%15%
201721%15%
201621%15%
201519%14%
201419%13%
201318%13%
201217%12%
201117%12%
201016%11%
200916%11%
200817%11%
200715%10%
200614%9%
200512%9%
200410%7%
20039%6%
20028%6%
20017%5%
20006%4%
19995%3%
19984%3%
19973%3%
19963%2%
19952%2%
19942%2%
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% Black
29%
38%

Black Student Percentage Comparison Over Years (1994-2024)

YearCobb County School DistrictGeorgia
202430%36%
202330%36%
202231%36%
202131%36%
202031%37%
201931%37%
201832%37%
201732%37%
201632%37%
201532%37%
201432%37%
201331%37%
201231%37%
201131%37%
201032%37%
200931%39%
200830%39%
200730%39%
200631%39%
200529%38%
200428%38%
200326%38%
200225%38%
200124%38%
200022%38%
199921%38%
199820%38%
199718%37%
199617%38%
199516%37%
199414%37%
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% White
32%
34%

White Student Percentage Comparison Over Years (1994-2024)

YearCobb County School DistrictGeorgia
202433%35%
202333%36%
202234%37%
202135%38%
202037%39%
201937%39%
201838%40%
201738%40%
201639%41%
201540%42%
201441%43%
201343%43%
201244%44%
201144%44%
201046%45%
200947%46%
200847%46%
200749%47%
200650%48%
200553%49%
200458%52%
200360%53%
200263%54%
200165%55%
200069%56%
199971%57%
199873%57%
199776%58%
199677%58%
199579%59%
199481%60%
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% Hawaiian
n/a
n/a
% Two or more races
6%
5%

Two or More Races Student Percentage Comparison Over Years (2012-2024)

YearCobb County School DistrictGeorgia
20245%5%
20235%5%
20225%4%
20214%4%
20204%4%
20194%4%
20183%4%
20173%4%
20163%3%
20153%3%
20143%3%
20133%3%
20123%3%
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All Ethnic Groups

District Revenue and Spending

The revenue/student of $14,919 is higher than the state median of $14,327. The school district revenue/student has grown by 11% over four school years.
The school district's spending/student of $13,772 is higher than the state median of $13,452. The school district spending/student has stayed relatively flat over four school years.
Definition of Terms
This School District
This State (GA)
Total Revenue
$1,578 MM
$24,999 MM

Total Revenues Trends

YearCobb County School DistrictGeorgia
2023$1,577 MM$35 MM
2022$1,504 MM$36 MM
2021$1,577 MM$35 MM
2020$1,504 MM$36 MM
2019$1,429 MM$35 MM
2018$1,345 MM$37 MM
2017$1,314 MM$34 MM
2016$1,239 MM$33 MM
2015$1,102 MM$35 MM
2014$1,111 MM$33 MM
2012$1,102 MM$30 MM
2011$1,125 MM$35 MM
2010$1,102 MM$35 MM
2009$1,107 MM$34 MM
2008$1,158 MM$36 MM
2007$1,191 MM$37 MM
2006$1,123 MM$33 MM
2005$1,026 MM$31 MM
2004$945 MM$30 MM
2003$937 MM$29 MM
2002$869 MM$27 MM
2001$813 MM$26 MM
2000$754 MM$24 MM
1999$688 MM$23 MM
1998$585 MM$21 MM
1997$531 MM$19 MM
1996$486 MM$18 MM
1995$402 MM$16 MM
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Spending
$1,456 MM
$23,473 MM

Total Expenditure Trends

YearCobb County School DistrictGeorgia
2023$1,456 MM$34 MM
2022$1,528 MM$34 MM
2021$1,456 MM$34 MM
2020$1,528 MM$34 MM
2019$1,398 MM$34 MM
2018$1,308 MM$37 MM
2017$1,308 MM$33 MM
2016$1,244 MM$33 MM
2015$1,061 MM$34 MM
2014$1,044 MM$33 MM
2012$1,182 MM$31 MM
2011$1,088 MM$32 MM
2010$1,061 MM$34 MM
2009$1,087 MM$36 MM
2008$1,151 MM$39 MM
2007$1,106 MM$35 MM
2006$1,024 MM$31 MM
2005$955 MM$30 MM
2004$860 MM$30 MM
2003$862 MM$29 MM
2002$844 MM$27 MM
2001$772 MM$25 MM
2000$718 MM$24 MM
1999$668 MM$23 MM
1998$585 MM$20 MM
1997$595 MM$19 MM
1996$482 MM$18 MM
1995$407 MM$16 MM
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Revenue / Student
$14,919
$14,327

Average Revenue Per Student Trends

YearCobb County School DistrictGeorgia
2023$14,784$12,637
2022$13,419$11,894
2021$14,691$12,909
2020$13,419$11,894
2019$12,776$11,854
2018$12,045$11,951
2017$11,612$10,689
2016$10,997$10,171
2015$9,863$10,365
2014$10,104$10,300
2012$10,272$9,333
2011$10,480$10,490
2010$10,277$10,365
2009$10,375$9,939
2008$10,790$10,540
2007$11,098$10,771
2006$10,527$9,885
2005$9,871$9,226
2004$9,266$8,830
2003$9,335$8,835
2002$8,840$8,247
2001$8,487$7,812
2000$8,050$7,225
1999$7,540$6,612
1998$6,632$5,956
1997$6,188$5,538
1995$4,991$5,262
1992$4,746$4,410
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Spending / Student
$13,772
$13,452

Average Expenditure Per Student Trends

YearCobb County School DistrictGeorgia
2023$13,648$12,072
2022$13,631$11,222
2021$13,562$12,332
2020$13,631$11,222
2019$12,497$11,278
2018$11,710$12,081
2017$11,556$10,570
2016$11,041$10,196
2015$9,490$9,935
2014$9,494$10,257
2012$11,016$9,538
2011$10,142$9,524
2010$9,889$9,935
2009$10,180$10,367
2008$10,722$11,185
2007$10,307$10,207
2006$9,594$9,210
2005$9,191$8,893
2004$8,433$8,737
2003$8,584$8,594
2002$8,587$8,120
2001$8,060$7,624
2000$7,667$7,230
1999$7,320$6,576
1998$6,631$5,787
1997$6,938$5,758
1995$5,060$5,243
1992$4,775$4,349
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Best Cobb County School District Public Middle Schools (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Dickerson Middle School
(Math: 88% | Reading: 80%)
Rank:
10/
10
Top 1%
855 Woodlawn Dr Ne
Marietta, GA 30068
(770) 578-2710
Gr: 6-8 | 1,225 students Student-teacher ratio: 18:1 Minority enrollment: 40%
Rank: #22.
Dodgen Middle School
(Math: 80% | Reading: 76%)
Rank:
10/
10
Top 5%
1725 Bill Murdock Rd
Marietta, GA 30062
(770) 578-2726
Gr: 6-8 | 1,178 students Student-teacher ratio: 16:1 Minority enrollment: 45%
Rank: #33.
Hightower Trail Middle School
(Math: 76% | Reading: 71%)
Rank:
10/
10
Top 5%
3905 Post Oak Tritt Rd
Marietta, GA 30062
(770) 578-7225
Gr: 6-8 | 944 students Student-teacher ratio: 15:1 Minority enrollment: 30%
Rank: #44.
Mabry Middle School
(Math: 70% | Reading: 72%)
Rank:
10/
10
Top 10%
2700 Jims Rd Ne
Marietta, GA 30066
(770) 928-5546
Gr: 6-8 | 938 students Student-teacher ratio: 16:1 Minority enrollment: 34%
Rank: #55.
Simpson Middle School
(Math: 64% | Reading: 69%)
Rank:
10/
10
Top 10%
3340 Trickum Rd Ne
Marietta, GA 30066
(770) 971-4711
Gr: 6-8 | 884 students Student-teacher ratio: 15:1 Minority enrollment: 44%
Rank: #66.
Lost Mountain Middle School
(Math: 64% | Reading: 64%)
Rank:
10/
10
Top 10%
700 Old Mountain Rd Nw
Kennesaw, GA 30152
(678) 594-8224
Gr: 6-8 | 979 students Student-teacher ratio: 16:1 Minority enrollment: 43%
Rank: #77.
Durham Middle School
(Math: 58% | Reading: 67%)
Rank:
9/
10
Top 20%
2891 Mars Hill Rd Nw
Acworth, GA 30101
(770) 975-6641
Gr: 6-8 | 984 students Student-teacher ratio: 16:1 Minority enrollment: 39%
Rank: #88.
Mcclure Middle School
(Math: 54% | Reading: 58%)
Rank:
9/
10
Top 20%
3660 Old Stilesboro Rd Nw
Kennesaw, GA 30152
(678) 331-8131
Gr: 6-8 | 1,030 students Student-teacher ratio: 15:1 Minority enrollment: 46%
Rank: #99.
Lovinggood Middle School
(Math: 51% | Reading: 56%)
Rank:
9/
10
Top 20%
3825 Luther Ward Rd
Powder Springs, GA 30127
(678) 331-3015
Gr: 6-8 | 1,209 students Student-teacher ratio: 17:1 Minority enrollment: 59%
Rank: #1010.
Mccleskey Middle School
(Math: 47% | Reading: 47%)
Rank:
8/
10
Top 30%
4080 Maybreeze Rd
Marietta, GA 30066
(770) 928-5560
Gr: 6-8 | 540 students Student-teacher ratio: 13:1 Minority enrollment: 51%
Rank: #1111.
Palmer Middle School
(Math: 39% | Reading: 52%)
Rank:
8/
10
Top 30%
690 N Booth Rd Nw
Kennesaw, GA 30144
(770) 591-5020
Gr: 6-8 | 803 students Student-teacher ratio: 16:1 Minority enrollment: 64%
Rank: #1212.
Daniell Middle School
(Math: 38% | Reading: 49%)
Rank:
7/
10
Top 50%
2900 Scott Rd
Marietta, GA 30066
(678) 594-8048
Gr: 6-8 | 884 students Student-teacher ratio: 15:1 Minority enrollment: 75%
Rank: #1313.
Pine Mountain Middle School
(Math: 35% | Reading: 43%)
Rank:
6/
10
Top 50%
2720 Pine Mountain Cir Nw
Kennesaw, GA 30152
(678) 594-8252
Gr: 6-8 | 506 students Student-teacher ratio: 12:1 Minority enrollment: 73%
Rank: #1414.
Tapp Middle School
(Math: 36% | Reading: 41%)
Rank:
6/
10
Top 50%
3900 Macedonia Rd
Powder Springs, GA 30127
(770) 222-3758
Gr: 6-8 | 809 students Student-teacher ratio: 15:1 Minority enrollment: 94%
Rank: #1515.
Griffin Middle School
(Math: 32% | Reading: 44%)
Rank:
6/
10
Top 50%
4010 King Springs Rd Se
Smyrna, GA 30082
(678) 842-6917
Gr: 6-8 | 991 students Student-teacher ratio: 16:1 Minority enrollment: 76%
Rank: #1616.
Awtrey Middle School
(Math: 35% | Reading: 40%)
Rank:
6/
10
Top 50%
3601 Nowlin Rd Nw
Kennesaw, GA 30144
(770) 975-6615
Gr: 6-8 | 593 students Student-teacher ratio: 13:1 Minority enrollment: 72%
Rank: #1717.
Cooper Middle School
(Math: 37% | Reading: 34%)
Rank:
6/
10
Top 50%
4605 Ewing Rd
Austell, GA 30106
(770) 819-2438
Gr: 6-8 | 1,000 students Student-teacher ratio: 16:1 Minority enrollment: 95%
Rank: #1818.
Barber Middle School
(Math: 30% | Reading: 41%)
Rank:
6/
10
Top 50%
4222 Cantrell Rd Nw
Acworth, GA 30101
(770) 975-6764
Gr: 6-8 | 790 students Student-teacher ratio: 14:1 Minority enrollment: 74%
Rank: #1919.
Campbell Middle School
(Math: 30% | Reading: 40%)
Rank:
6/
10
Top 50%
3295 Atlanta Rd Se
Smyrna, GA 30080
(678) 842-6873
Gr: 6-8 | 1,368 students Student-teacher ratio: 17:1 Minority enrollment: 84%
Rank: #2020.
East Cobb Middle School
(Math: 31% | Reading: 34%)
Rank:
5/
10
Bottom 50%
825 Terrell Mill Rd Se
Marietta, GA 30067
(770) 578-2740
Gr: 6-8 | 1,352 students Student-teacher ratio: 16:1 Minority enrollment: 80%
Rank: #2121.
Cobb Horizon High School
(Math: 20% | Reading: 36%)
Rank:
4/
10
Bottom 50%
1765 The Exchange Se
Atlanta, GA 30339
(678) 594-8240
Gr: 6-12 | 927 students Student-teacher ratio: 13:1 Minority enrollment: 77%
Rank: #2222.
Floyd Middle School
(Math: 28% | Reading: 29%)
Rank:
4/
10
Bottom 50%
4803 Floyd Rd Sw
Mableton, GA 30126
(770) 819-2453
Gr: 6-8 | 776 students Student-teacher ratio: 14:1 Minority enrollment: 93%
Rank: #2323.
Betty Gray Middle School
(Math: 25% | Reading: 28%)
Rank:
4/
10
Bottom 50%
1550 Pebblebrook Cir Se
Mableton, GA 30126
(770) 819-2414
Gr: 6-8 | 702 students Student-teacher ratio: 16:1 Minority enrollment: 96%
Rank: #2424.
Smitha Middle School
(Math: 21% | Reading: 30%)
Rank:
4/
10
Bottom 50%
2025 Powder Springs Rd Sw
Marietta, GA 30064
(678) 594-8267
Gr: 6-8 | 866 students Student-teacher ratio: 14:1 Minority enrollment: 95%
Rank: #2525.
Lindley Middle School
(Math: 24% | Reading: 25%)
Rank:
3/
10
Bottom 50%
50 Veterans Memorial Hwy Se
Mableton, GA 30126
(770) 819-2496
Gr: 6-8 | 905 students Student-teacher ratio: 14:1 Minority enrollment: 96%
Rank: #2626.
Garrett Middle School
(Math: 24% | Reading: 23%)
Rank:
3/
10
Bottom 50%
5235 Austell Powder Springs Rd
Austell, GA 30106
(770) 819-2466
Gr: 6-8 | 891 students Student-teacher ratio: 15:1 Minority enrollment: 95%
Rank: #2727.
Pearson Middle School
(Math: 13% | Reading: 22%)
Rank:
2/
10
Bottom 50%
240 Barber Road Se
Marietta, GA 30060
(770) 429-6012
Gr: 6-8 | 806 students Student-teacher ratio: 13:1 Minority enrollment: 97%
Rank: #2828.
Devereux Ackerman Academy
(Math: ≤10% | Reading: ≤20%)
Rank:
1/
10
Bottom 50%
1291 Stanley Rd Nw
Kennesaw, GA 30152
(770) 427-0147
Gr: K-12 | 54 students Student-teacher ratio: 4:1 Minority enrollment: 70%

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Quick Facts (2026)

  • District size: 110 schools
  • Grades: PK-12
  • Enrollment: 105,738 students
  • Student-Teacher Ratio: 14:1
  • Minority Enrollment: 68%
  • : 88% (Top 50% in GA)
  • : Top 20%
  • : 47% (Top 20%)
  • : 50% (Top 20%)
  • : 47% (Top 30%)
  • Source: National Center for Education Statistics (NCES), GA Dept. of Education

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