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Cobb County School Calendar 2026-27

Marietta, Georgia · Cobb County

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Coming Up

Tue, Nov 3
Election Day
Tue, Nov 3
Election Day / Student Holiday

No School - Cobb County School District

Nov 23 - 25
Student Holiday/Staff Day

Part of Thanksgiving Break

Nov 23 - 27
Thanksgiving Break

Thanksgiving Break - Cobb County School District Review the calendar for the full break dates.

Thu, Nov 26
Thanksgiving Day

Banks, government offices, and schools may be closed.

Fri, Nov 27
Holiday - School Closed

Part of Thanksgiving Break

Full School Calendar 2026-27

38 events

Mon, Sep 7

Holiday

Labor Day

Check the calendar for holiday observance details.

Sep 21 - 25

Event

School Closed

School Closed - Cobb County School District

Mon, Oct 12

Holiday

Holiday - School Closed

Banks, government offices, and schools may be closed.

Mon, Oct 12

PD Day

Student Holiday/Staff Day

Banks, government offices, and schools may be closed.

Oct 13 - 16

Early Dismissal

Early Release for Elementary/Middle Schools

Early release for elementary and middle schools only

Oct 13 - 16

Early Dismissal

Early Release for Elementary and Middle Schools

During Elementary/Middle School Conference Week

Oct 13 - 16

Meeting

Elementary/Middle School Conference Week

Early release for elementary and middle schools only

Tue, Nov 3

PD Day

Election Day

Tue, Nov 3

Holiday

Election Day / Student Holiday

No School - Cobb County School District

Nov 23 - 25

PD Day

Student Holiday/Staff Day

Part of Thanksgiving Break

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Data source: official Cobb County website · Last verified May 20, 2026 · How we verify this data

Key Dates — Cobb County School Calendar

The last day of school in Cobb County is Wed, May 19, 2027, according to the district's published calendar. Scheduled breaks include Thanksgiving Break (Mon, Nov 23, 2026 to Fri, Nov 27, 2026), Winter Break (Mon, Dec 21, 2026 to Fri, Jan 1, 2027), Spring Holidays (Mon, Apr 5, 2027 to Fri, Apr 9, 2027).

Last day of school
Wed, May 19, 2027
Thanksgiving Break
Mon, Nov 23, 2026 to Fri, Nov 27, 2026
Winter Break
Mon, Dec 21, 2026 to Fri, Jan 1, 2027
Spring Holidays
Mon, Apr 5, 2027 to Fri, Apr 9, 2027
Labor Day
Mon, Sep 7, 2026
School Closed
Mon, Sep 21, 2026 to Fri, Sep 25, 2026
Holiday - School Closed
Mon, Oct 12, 2026
Election Day / Student Holiday
Tue, Nov 3, 2026
Student Holiday/Staff Day
Mon, Nov 23, 2026 to Wed, Nov 25, 2026
Thanksgiving Day
Thu, Nov 26, 2026
Holiday - School Closed
Fri, Nov 27, 2026
Student Holiday/Staff Day
Mon, Dec 21, 2026 to Mon, Jan 4, 2027
Christmas Day
Fri, Dec 25, 2026
Holiday - School Closed
Mon, Dec 28, 2026 to Thu, Dec 31, 2026
106,358
Students
110
Schools
66 elem · 26 mid · 17 high
14.2:1
Student-Teacher
7,468 teachers
Pre-K–12
Grades

Quick Facts

967
Avg. School Size
13,789
Total Staff

Contact

Address
514 Glover Street
Marietta, GA 30060
Phone
(770)426-3300

Staff & Students

Teachers (FTE)
7,468
Total Staff
13,789
Data Source
NCES Common Core of Data
School Year 2023-24

Schools in Cobb County (110)

Campbell High School

Smyrna

High
3,030 studentsGrades 9–1217.6:1 ratio57.46% FRPL

Osborne High School

Marietta

High
2,773 studentsGrades 9–1215.8:1 ratio85.18% FRPL

Walton High School

Marietta

HighCharter
2,685 studentsGrades 9–1219.5:1 ratio7.82% FRPL

Pebblebrook High School

Mableton

High
2,574 studentsGrades 9–1216.9:1 ratio82.13% FRPL

North Cobb High School

Kennesaw

High
2,521 studentsGrades 9–1217.8:1 ratio52.44% FRPL

Wheeler High School

Marietta

High
2,380 studentsGrades 9–1216.8:1 ratio49.16% FRPL

McEachern High School

Powder Springs

High
2,300 studentsGrades 9–1218.1:1 ratio72.83% FRPL

Hillgrove High School

Powder Springs

High
2,290 studentsGrades 9–1218.3:1 ratio33.76% FRPL

Harrison High School

Kennesaw

High
2,170 studentsGrades 9–1219.4:1 ratio16.41% FRPL

South Cobb High School

Austell

High
2,137 studentsGrades 9–1216.6:1 ratio81% FRPL

Lassiter High School

Marietta

High
1,949 studentsGrades 9–1217.7:1 ratio14.16% FRPL

Sprayberry High School

Marietta

High
1,799 studentsGrades 9–1216.7:1 ratio49.86% FRPL

Pope High School

Marietta

High
1,758 studentsGrades 9–1217.6:1 ratio10.86% FRPL

Kennesaw Mountain High School

Kennesaw

High
1,666 studentsGrades 9–1215.9:1 ratio41.66% FRPL

Allatoona High School

Acworth

High
1,642 studentsGrades 9–1217.7:1 ratio30.33% FRPL

Kell High School

Marietta

High
1,582 studentsGrades 9–1217.6:1 ratio43.68% FRPL

East Cobb Middle School

Marietta

Middle
1,345 studentsGrades 6–816.2:1 ratio66.69% FRPL

Campbell Middle School

Smyrna

Middle
1,257 studentsGrades 6–816.8:1 ratio60.46% FRPL

Dodgen Middle School

Marietta

Middle
1,238 studentsGrades 6–817:1 ratio11.07% FRPL

Lovinggood Middle School

Powder Springs

Middle
1,215 studentsGrades 6–817.1:1 ratio35.72% FRPL

Dickerson Middle School

Marietta

Middle
1,208 studentsGrades 6–817.3:1 ratio8.86% FRPL

Nickajack Elementary School

Smyrna

Primary
1,191 studentsGrades Pre-K–514.9:1 ratio42.32% FRPL

Sope Creek Elementary School

Marietta

Primary
1,106 studentsGrades Pre-K–515.2:1 ratio11.57% FRPL

King Springs Elementary School

Smyrna

Primary
1,103 studentsGrades Pre-K–513.3:1 ratio28.83% FRPL

East Side Elementary School

Marietta

Primary
1,066 studentsGrades Pre-K–514.4:1 ratio10.04% FRPL

Cooper Middle School

Austell

Middle
1,056 studentsGrades 6–816.5:1 ratio80.11% FRPL

Cobb Horizon High School

Atlanta

High
1,027 studentsGrades 6–1213:1 ratio23.47% FRPL

Brumby Elementary School

Marietta

Primary
1,026 studentsGrades Pre-K–512.5:1 ratio78.56% FRPL

Durham Middle School

Acworth

Middle
1,020 studentsGrades 6–817.6:1 ratio23.53% FRPL

McClure Middle School

Kennesaw

Middle
1,003 studentsGrades 6–815.4:1 ratio32.3% FRPL

Lost Mountain Middle School

Kennesaw

Middle
993 studentsGrades 6–816.6:1 ratio23.77% FRPL

Cheatham Hill Elementary School

Marietta

Primary
990 studentsGrades Pre-K–512.4:1 ratio42.73% FRPL

Clay-Harmony Leland Elementary School

Mableton

Primary
988 studentsGrades Pre-K–513.4:1 ratio77.33% FRPL

Griffin Middle School

Smyrna

Middle
982 studentsGrades 6–815.1:1 ratio59.78% FRPL

Teasley Elementary School

Smyrna

Primary
973 studentsGrades Pre-K–514.5:1 ratio39.05% FRPL

Hightower Trail Middle School

Marietta

Middle
963 studentsGrades 6–815.8:1 ratio11.94% FRPL

Mount Bethel Elementary School

Marietta

Primary
919 studentsGrades Pre-K–513.9:1 ratio7.83% FRPL

Kemp Elementary School

Powder Springs

Primary
918 studentsGrades Pre-K–514.8:1 ratio24.29% FRPL

Mabry Middle School

Marietta

Middle
918 studentsGrades 6–815.6:1 ratio15.36% FRPL

Murdock Elementary School

Marietta

Primary
911 studentsGrades Pre-K–514.5:1 ratio13.17% FRPL

Mableton Elementary School

Mableton

Primary
910 studentsGrades Pre-K–511.7:1 ratio89.34% FRPL

City View Elementary School

Mableton

Primary
907 studentsGrades Pre-K–511.8:1 ratio96.58% FRPL

Daniell Middle School

Marietta

Middle
894 studentsGrades 6–816:1 ratio62.08% FRPL

Tapp Middle School

Powder Springs

Middle
885 studentsGrades 6–815.5:1 ratio75.25% FRPL

Simpson Middle School

Marietta

Middle
884 studentsGrades 6–815.8:1 ratio23.08% FRPL

Garrett Middle School

Austell

Middle
883 studentsGrades 6–814.2:1 ratio93.43% FRPL

Dowell Elementary School

Marietta

Primary
880 studentsGrades Pre-K–511.7:1 ratio71.7% FRPL

Smyrna Elementary School

Smyrna

Primary
876 studentsGrades Pre-K–512:1 ratio63.01% FRPL

Lindley Middle School

Mableton

Middle
875 studentsGrades 6–812.7:1 ratio94.4% FRPL

Smitha Middle School

Marietta

Middle
868 studentsGrades 6–813.8:1 ratio89.75% FRPL

Bryant Elementary School

Mableton

Primary
855 studentsGrades Pre-K–513:1 ratio93.57% FRPL

Floyd Middle School

Mableton

Middle
846 studentsGrades 6–813.9:1 ratio87.35% FRPL

Pearson Middle School

Marietta

Middle
839 studentsGrades 6–814:1 ratio92.61% FRPL

Mountain View Elementary School

Marietta

Primary
835 studentsGrades Pre-K–513.3:1 ratio20.12% FRPL

Barber Middle School

Acworth

Middle
832 studentsGrades 6–816:1 ratio65.5% FRPL

Bullard Elementary School

Kennesaw

Primary
822 studentsGrades Pre-K–513.3:1 ratio31.39% FRPL

Powder Springs Elementary School

Powder Springs

Primary
817 studentsGrades Pre-K–512.4:1 ratio78.34% FRPL

Hayes Elementary School

Kennesaw

Primary
801 studentsGrades Pre-K–512.7:1 ratio61.42% FRPL

Tritt Elementary School

Marietta

Primary
797 studentsGrades Pre-K–513.5:1 ratio9.03% FRPL

Pitner Elementary School

Acworth

Primary
790 studentsGrades Pre-K–512.3:1 ratio59.87% FRPL

Palmer Middle School

Kennesaw

Middle
776 studentsGrades 6–814.6:1 ratio57.22% FRPL

Baker Elementary School

Acworth

Primary
774 studentsGrades Pre-K–512.3:1 ratio55.81% FRPL

Bells Ferry Elementary School

Marietta

Primary
762 studentsGrades Pre-K–515.2:1 ratio62.86% FRPL

Varner Elementary School

Powder Springs

Primary
761 studentsGrades Pre-K–513.4:1 ratio65.31% FRPL

Still Elementary School

Powder Springs

Primary
757 studentsGrades Pre-K–512:1 ratio35.54% FRPL

Ford Elementary School

Acworth

Primary
747 studentsGrades Pre-K–513.3:1 ratio16.47% FRPL

Frey Elementary School

Acworth

Primary
745 studentsGrades Pre-K–512.6:1 ratio32.35% FRPL

Clarkdale Elementary School

Austell

Primary
745 studentsGrades Pre-K–513.8:1 ratio85.91% FRPL

Pickett's Mill Elementary School

Acworth

Primary
734 studentsGrades Pre-K–513.6:1 ratio31.88% FRPL

Fair Oaks Elementary School

Marietta

Primary
724 studentsGrades Pre-K–59.9:1 ratio97.79% FRPL

Eastvalley Elementary School

Marietta

Primary
693 studentsGrades Pre-K–513.1:1 ratio40.55% FRPL

Birney Elementary School

Marietta

Primary
686 studentsGrades Pre-K–510.7:1 ratio88.63% FRPL

Betty Gray Middle School

Mableton

Middle
686 studentsGrades 6–814.6:1 ratio86.73% FRPL

Chalker Elementary School

Kennesaw

Primary
682 studentsGrades Pre-K–513.1:1 ratio49.85% FRPL

Norton Park Elementary School

Smyrna

Primary
654 studentsGrades Pre-K–510.7:1 ratio92.05% FRPL

Due West Elementary School

Marietta

Primary
648 studentsGrades Pre-K–514.1:1 ratio19.75% FRPL

Garrison Mill Elementary School

Marietta

Primary
646 studentsGrades Pre-K–514.4:1 ratio13.78% FRPL

Awtrey Middle School

Kennesaw

Middle
643 studentsGrades 6–815.3:1 ratio51.63% FRPL

Vaughan Elementary School

Powder Springs

Primary
632 studentsGrades Pre-K–513.2:1 ratio21.68% FRPL

Compton Elementary School

Powder Springs

Primary
631 studentsGrades Pre-K–511.5:1 ratio91.44% FRPL

Sanders Elementary School

Austell

Primary
619 studentsGrades Pre-K–511.5:1 ratio91.11% FRPL

Kincaid Elementary School

Marietta

Primary
611 studentsGrades Pre-K–513.3:1 ratio33.06% FRPL

Davis Elementary School

Marietta

Primary
608 studentsGrades Pre-K–514.1:1 ratio12.34% FRPL

Kennesaw Elementary School

Kennesaw

Primary
606 studentsGrades Pre-K–211.7:1 ratio56.6% FRPL

Shallowford Falls Elementary School

Marietta

Primary
598 studentsGrades Pre-K–511.5:1 ratio16.89% FRPL

Blackwell Elementary School

Marietta

Primary
583 studentsGrades Pre-K–511.4:1 ratio55.23% FRPL

Sedalia Park Elementary School

Marietta

Primary
583 studentsGrades Pre-K–511.4:1 ratio65.69% FRPL

Russell Elementary School

Smyrna

Primary
582 studentsGrades Pre-K–511.2:1 ratio78.87% FRPL

Rocky Mount Elementary School

Marietta

Primary
582 studentsGrades Pre-K–513.2:1 ratio17.87% FRPL

Addison Elementary School

Marietta

Primary
571 studentsGrades Pre-K–512.1:1 ratio35.03% FRPL

Green Acres Elementary School

Smyrna

Primary
557 studentsGrades Pre-K–59.8:1 ratio97.67% FRPL

Lewis Elementary School

Kennesaw

Primary
552 studentsGrades Pre-K–512.8:1 ratio58.88% FRPL

McCleskey Middle School

Marietta

Middle
551 studentsGrades 6–812.5:1 ratio48.28% FRPL

Hollydale Elementary School

Marietta

Primary
546 studentsGrades Pre-K–59.1:1 ratio88.46% FRPL

Pine Mountain Middle School

Kennesaw

Middle
545 studentsGrades 6–813:1 ratio56.7% FRPL

Big Shanty Elementary School

Kennesaw

Primary
545 studentsGrades 3–512.1:1 ratio53.39% FRPL

Riverside Elementary School

Mableton

Primary
511 studentsGrades Pre-K–511.1:1 ratio96.28% FRPL

Timber Ridge Elementary School

Marietta

Primary
510 studentsGrades Pre-K–513.1:1 ratio6.08% FRPL

Acworth Intermediate School

Acworth

Primary
505 studentsGrades 2–511:1 ratio75.84% FRPL

Hendricks Elementary School

Powder Springs

Primary
501 studentsGrades Pre-K–511.7:1 ratio85.83% FRPL

Nicholson Elementary School

Marietta

Primary
414 studentsGrades Pre-K–510.4:1 ratio47.58% FRPL

Keheley Elementary School

Marietta

Primary
390 studentsGrades Pre-K–510.5:1 ratio41.03% FRPL

Powers Ferry Elementary School

Marietta

Primary
388 studentsGrades Pre-K–511.4:1 ratio87.37% FRPL

Austell Elementary School

Austell

Primary
358 studentsGrades Pre-K–59.9:1 ratio89.94% FRPL

LaBelle Elementary School

Marietta

Primary
356 studentsGrades Pre-K–58.9:1 ratio97.47% FRPL

Milford Elementary School

Marietta

Primary
353 studentsGrades Pre-K–58.8:1 ratio92.35% FRPL

Argyle Elementary School

Smyrna

Primary
309 studentsGrades Pre-K–58.4:1 ratio93.2% FRPL

McCall Primary School

Acworth

Primary
290 studentsGrades Pre-K–110:1 ratio68.97% FRPL

Belmont Hills Elementary School

Smyrna

Primary
276 studentsGrades Pre-K–57.9:1 ratio92.39% FRPL

Devereux Ackerman Academy

Kennesaw

Other
64 studentsGrades K–124.3:1 ratio95.31% FRPL

Frequently Asked Questions about Cobb County

The last day of school in Cobb County is Wed, May 19, 2027, according to the district's published calendar.

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