Total enrollment
116,609
-4,963 (-4%) vs SY 2017-18
Cobb County
Georgia · Public K-12
Georgia's Cobb County runs 129 public K-12 schools between its districts, the largest being Cobb County Public Schools at 105,738 students. That works out to 78 elementary, 29 middle, and 20 high schools.
7-year change in Cobb County
SY 2017-18 vs SY 2024-25School count
129
+5 (+4%) vs SY 2017-18
% White
31%
was 36%
% Hispanic
27%
was 23%
% Black
30%
was 32%
% Asian
6%
was 5%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
129
8 districts
Enrollment
116,609
NCES CCD
Median income
$102,738
Above Georgia avg
Free/reduced lunch
53.3%
Below Georgia avg
Elementary
78
50,523 students
Middle
29
26,570 students
High
20
38,664 students
Combined / other
2
852 students
LARGEST DISTRICT
Cobb County Public Schools
105,738 students · 8 districts in Cobb County
County vs. school enrollment demographics
Left bar is the racial makeup of Cobb County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".
County residents
School enrollment
Bachelor's+
50.8%
adults 25+
Poverty rate
5.7%
ACS 5-year
Unemployment
4.5%
civilian labor
Median age
38
22.6% under 18
Test scores in Cobb County
Latest 2024-25 ELA proficiency, 101 schools ranked. Georgia state average: 40.1%.
Top 5 schools (ELA)
Lowest 5 schools (ELA)
- Riverside Elementary School· 16.1%
- Belmont Hills Elementary School· 17.0%
- Green Acres Elementary School· 18.1%
- Norton Park Elementary School· 19.5%
- Brumby Elementary School· 20.0%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| Campbell High School | Smyrna | High | 09-12 | 3,085 | · |
| Osborne High School | Marietta | High | 09-12 | 2,790 | · |
| Walton High School | Marietta | High | 09-12 | 2,705 | · |
| Pebblebrook High School | Mableton | High | 09-12 | 2,574 | · |
| Marietta High School | Marietta | High | 09-12 | 2,526 | · |
| North Cobb High School | Kennesaw | High | 09-12 | 2,463 | · |
| Wheeler High School | Marietta | High | 09-12 | 2,401 | · |
| Hillgrove High School | Powder Springs | High | 09-12 | 2,282 | · |
| Harrison High School | Kennesaw | High | 09-12 | 2,224 | · |
| McEachern High School | Powder Springs | High | 09-12 | 2,175 | · |
| South Cobb High School | Austell | High | 09-12 | 2,081 | · |
| Lassiter High School | Marietta | High | 09-12 | 2,005 | · |
| Pope High School | Marietta | High | 09-12 | 1,793 | · |
| Sprayberry High School | Marietta | High | 09-12 | 1,769 | · |
| Kennesaw Mountain High School | Kennesaw | High | 09-12 | 1,695 | · |
| Kell High School | Marietta | High | 09-12 | 1,587 | · |
| Allatoona High School | Acworth | High | 09-12 | 1,560 | · |
| Campbell Middle School | Smyrna | Middle | 06-08 | 1,368 | · |
| East Cobb Middle School | Marietta | Middle | 06-08 | 1,352 | · |
| Marietta Middle School | Marietta | Middle | 07-08 | 1,352 | · |
| Nickajack Elementary School | Smyrna | Elementary | PK-05 | 1,260 | · |
| Dickerson Middle School | Marietta | Middle | 06-08 | 1,225 | · |
| Lovinggood Middle School | Powder Springs | Middle | 06-08 | 1,209 | · |
| Dodgen Middle School | Marietta | Middle | 06-08 | 1,178 | · |
| Sope Creek Elementary School | Marietta | Elementary | PK-05 | 1,104 | · |
| King Springs Elementary School | Smyrna | Elementary | PK-05 | 1,101 | · |
| East Side Elementary School | Marietta | Elementary | PK-05 | 1,072 | · |
| McClure Middle School | Kennesaw | Middle | 06-08 | 1,030 | · |
| Cheatham Hill Elementary School | Marietta | Elementary | PK-05 | 1,021 | · |
| Clay-Harmony Leland Elementary School | Mableton | Elementary | PK-05 | 1,013 | · |
| Cooper Middle School | Austell | Middle | 06-08 | 1,000 | · |
| Griffin Middle School | Smyrna | Middle | 06-08 | 991 | · |
| Durham Middle School | Acworth | Middle | 06-08 | 984 | · |
| Lost Mountain Middle School | Kennesaw | Middle | 06-08 | 979 | · |
| Teasley Elementary School | Smyrna | Elementary | PK-05 | 974 | · |
| Brumby Elementary School | Marietta | Elementary | PK-05 | 963 | · |
| Mableton Elementary School | Mableton | Elementary | PK-05 | 945 | · |
| Hightower Trail Middle School | Marietta | Middle | 06-08 | 944 | · |
| Mabry Middle School | Marietta | Middle | 06-08 | 938 | · |
| Cobb Horizon High School | Atlanta | High | 06-12 | 927 | · |
| Lindley Middle School | Mableton | Middle | 06-08 | 905 | · |
| Dowell Elementary School | Marietta | Elementary | PK-05 | 898 | · |
| Mount Bethel Elementary School | Marietta | Elementary | PK-05 | 898 | · |
| Kemp Elementary School | Powder Springs | Elementary | PK-05 | 894 | · |
| Garrett Middle School | Austell | Middle | 06-08 | 891 | · |
| Daniell Middle School | Marietta | Middle | 06-08 | 884 | · |
| Simpson Middle School | Marietta | Middle | 06-08 | 884 | · |
| City View Elementary School | Mableton | Elementary | PK-05 | 870 | · |
| Smyrna Elementary School | Smyrna | Elementary | PK-05 | 870 | · |
| Smitha Middle School | Marietta | Middle | 06-08 | 866 | · |
| Bryant Elementary School | Mableton | Elementary | PK-05 | 865 | · |
| Murdock Elementary School | Marietta | Elementary | PK-05 | 847 | · |
| Mountain View Elementary School | Marietta | Elementary | PK-05 | 837 | · |
| Tapp Middle School | Powder Springs | Middle | 06-08 | 809 | · |
| Pearson Middle School | Marietta | Middle | 06-08 | 806 | · |
| Powder Springs Elementary School | Powder Springs | Elementary | PK-05 | 805 | · |
| Tritt Elementary School | Marietta | Elementary | PK-05 | 804 | · |
| Palmer Middle School | Kennesaw | Middle | 06-08 | 803 | · |
| Hayes Elementary School | Kennesaw | Elementary | PK-05 | 802 | · |
| Pitner Elementary School | Acworth | Elementary | PK-05 | 802 | · |
| Bullard Elementary School | Kennesaw | Elementary | PK-05 | 799 | · |
| Northwest Classical Academy | Kennesaw | Combined | KG-12 | 798 | · |
| Barber Middle School | Acworth | Middle | 06-08 | 790 | · |
| Clarkdale Elementary School | Austell | Elementary | PK-05 | 785 | · |
| Floyd Middle School | Mableton | Middle | 06-08 | 776 | · |
| Still Elementary School | Powder Springs | Elementary | PK-05 | 755 | · |
| Pickett's Mill Elementary School | Acworth | Elementary | PK-05 | 753 | · |
| Ford Elementary School | Acworth | Elementary | PK-05 | 750 | · |
| Baker Elementary School | Acworth | Elementary | PK-05 | 738 | · |
| Lockheed Elementary School | Marietta | Elementary | PK-05 | 734 | · |
| Birney Elementary School | Marietta | Elementary | PK-05 | 725 | · |
| Varner Elementary School | Powder Springs | Elementary | PK-05 | 705 | · |
| Bells Ferry Elementary School | Marietta | Elementary | PK-05 | 704 | · |
| Fair Oaks Elementary School | Marietta | Elementary | PK-05 | 703 | · |
| Betty Gray Middle School | Mableton | Middle | 06-08 | 702 | · |
| Frey Elementary School | Acworth | Elementary | PK-05 | 691 | · |
| Chalker Elementary School | Kennesaw | Elementary | PK-05 | 679 | · |
| Eastvalley Elementary School | Marietta | Elementary | PK-05 | 679 | · |
| Marietta Sixth Grade Academy | Marietta | Middle | 06-06 | 678 | · |
| Garrison Mill Elementary School | Marietta | Elementary | PK-05 | 649 | · |
| Norton Park Elementary School | Smyrna | Elementary | PK-05 | 643 | · |
| Davis Elementary School | Marietta | Elementary | PK-05 | 635 | · |
| Sedalia Park Elementary School | Marietta | Elementary | PK-05 | 634 | · |
| Due West Elementary School | Marietta | Elementary | PK-05 | 626 | · |
| Sanders Elementary School | Austell | Elementary | PK-05 | 626 | · |
| Kincaid Elementary School | Marietta | Elementary | PK-05 | 603 | · |
| Vaughan Elementary School | Powder Springs | Elementary | PK-05 | 600 | · |
| Awtrey Middle School | Kennesaw | Middle | 06-08 | 593 | · |
| Compton Elementary School | Powder Springs | Elementary | PK-05 | 593 | · |
| Shallowford Falls Elementary School | Marietta | Elementary | PK-05 | 591 | · |
| Destinations Career Academy of Georgia (Virtual) | Atlanta | Middle | 06-10 | 587 | · |
| Green Acres Elementary School | Smyrna | Elementary | PK-05 | 584 | · |
| Blackwell Elementary School | Marietta | Elementary | PK-05 | 580 | · |
| Rocky Mount Elementary School | Marietta | Elementary | PK-05 | 576 | · |
| Addison Elementary School | Marietta | Elementary | PK-05 | 571 | · |
| Russell Elementary School | Smyrna | Elementary | PK-05 | 568 | · |
| Kennesaw Elementary School | Kennesaw | Elementary | PK-02 | 560 | · |
| West Side Elementary School | Marietta | Elementary | PK-05 | 556 | · |
| Dunleith Elementary School | Marietta | Elementary | PK-05 | 554 | · |
| Lewis Elementary School | Kennesaw | Elementary | PK-05 | 550 | · |
Cities in Cobb County
About Cobb County
Across the wide-reaching Georgia county of Cobb County of about 775,208 residents, the public-school footprint covers 129 schools and about 116,609 students.
Zooming out, census numbers show the median household earns about $102,738 a year, about 51% of adults have a bachelor's degree or above, and the federal-poverty share is near 6%. That income level is 64% meaningfully above the Georgia median.
For a sense of the school types, Cobb County spans 78 elementary schools (50,523 students), 29 middle schools (26,570), 20 high schools (38,664), and 2 combined or other schools.
The largest single district in Cobb County is Cobb County Public Schools, which alone enrolls about 105,738 students.
Over the past 7-year window. Combined enrollment now sits at 116,609 students, shrank 4% from the 121,572 reported in SY 2017-18. The school count climbed from 124 to 129 across the same 7-year window. Demographically, the White share of enrollment declined from 36% to 31%.
Within the allk12 community for this area, the community for Cobb County discusses sports rivalries, cross-district programs, and shared facilities. Discussions cut across districts, schools, and grade levels.
Frequently asked questions
Cobb County school rankings
DATA · Census ACS 5-year · NCES Common Core of Data