Beta You're viewing our redesigned school page. Prefer the classic layout?

Garrison Mill Elementary School

Public Grades PK, KG-5

115^th

SchoolDigger Rank ?

of 1,219 Georgia Elementary Schools

Better than 91% of Georgia elementary schools

Summary

Garrison Mill Elementary School in Marietta, GA, is a PK-5 school in the Cobb County School District serving 649 students, and it has earned a 5-star rating every year for the past decade, currently ranking 115th out of more than 1,200 Georgia elementary schools (91st percentile).

Garrison Mill stands out for its exceptional attendance and strong academics. The chronic absenteeism rate is just 2.9%—the lowest among nearby schools and far better than the district average of 14.2%. In math, the school outperforms both district and state averages at every grade level, with 4th grade proficiency at 75.5% (compared to 56.7% district and 50.1% state). Science is a signature strength: 5th grade proficiency hit 76.6% in 2025-2026, exceeding the district average by nearly 30 points and the state average by over 32 points. This represents a big jump from the prior year’s 65.1%. While the school’s state ranking has slipped from a peak of 38th in 2021-2022 to its current 115th, it remains firmly in the top 10% of Georgia schools and continues to outperform several nearby schools, including Addison Elementary School (150th), Rocky Mount Elementary School (138th), and Keheley Elementary School (290th).

One area for growth is support for students with special needs, who rank at the 65th percentile statewide—a 3-star rating compared to the school’s overall 5-star performance. Additionally, while the school excels overall, its White student subgroup ranks at the 72nd percentile, suggesting room for improvement in serving all learners equitably. Garrison Mill also achieves strong results with relatively efficient spending ($16,212 per student), notably less than Shallowford Falls Elementary School ($18,705) and Keheley ($20,881), yet it outperforms both in state rankings. The school sits in a highly competitive cluster—with Mountain Park Elementary School (12th), Tritt Elementary School (16th), Murdock Elementary School (57th), and Davis Elementary School (82nd) all nearby—making it a strong choice within an exceptionally high-performing area.

649

Students ?

14.0

Student/teacher ratio ?

$16,212

Per pupil spending ?

11.7%

Free/discounted lunch ?

4111 Wesley Chapel Rd
Marietta, GA 30062

(770) 642-5600

District: Cobb County

Students who attend Garrison Mill Elementary School usually attend:

Middle:	Mabry Middle School
High:	Lassiter High School

Racial breakdown:

White:

68.7%

Asian:

11.6%

Hispanic:

8.6%

See top rated Georgia elementary schools

Compare Garrison Mill Elementary School to nearby elementary schools!

Test scores delayed: 2026 rankings for Georgia do not yet include English Language Arts scores, which will not be released by the Georgia Department of Education until winter 2026.

At a glance

▬ Ranking trend: Holding steady — 95th percentile in 2016 → 91st in 2026

Strengths

✓Test scores above the Georgia average (72% vs 47% meeting standards)

✓Ranks in the top 9% of Georgia elementary schools

✓Among the top-ranked schools in Cobb County

Worth a look

!Some student groups rank well below the school's overall statewide standing

Students meeting standards (2025-2026) ?

This school72%

District avg53%

Georgia avg47%

115^th of 1,219

Georgia public elementary schools ?

Top 9%▼ down 5 pts since 2016

From top 5% (2016) to top 9% (2026)

See the entire ranking list of Georgia Elementary Schools →

★★★★★

SchoolDigger rating ?

11^th of 64Elementary Schools in the Cobb County

58^th of 201Cobb County among Georgia districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Georgia percentile	Rating
2026	91.4	115 of 1219	90.6%	★★★★★
2025	91.2	116 of 1238	90.6%	★★★★★
2024	93.8	85 of 1236	93.1%	★★★★★
2023	91.6	110 of 1223	91.0%	★★★★★
2022	97.3	38 of 1220	96.9%	★★★★★
2021	94.9	72 of 1214	94.1%	★★★★★
2019	94.3	61 of 1234	95.1%	★★★★★
2018	94.7	61 of 1209	95.0%	★★★★★
2017	96.9	37 of 1205	96.9%	★★★★★
2016	95.2	58 of 1233	95.3%	★★★★★
2015	89.4	116 of 1240	90.6%	★★★★★
2014	85.2	65 of 1231	94.7%	★★★★★
2013	85.8	53 of 1225	95.7%	★★★★★
2012	86.4	59 of 1201	95.1%	★★★★★
2011	87.3	56 of 1212	95.4%	★★★★★
2010	89.9	22 of 1183	98.1%	★★★★★
2009	90.5	33 of 1133	97.1%	★★★★★
2008	89.7	43 of 1134	96.2%	★★★★★
2007	83.7	117 of 1125	89.6%	★★★★☆
2006	79.3	170 of 1101	84.6%	★★★★☆

Female

Year	Avg score	Statewide rank	Georgia percentile	Rating
2026	91.9	95 of 1186	92.0%	★★★★★
2025	85.8	165 of 1224	86.5%	★★★★☆
2024	89.4	130 of 1223	89.4%	★★★★☆
2023	85.5	164 of 1212	86.5%	★★★★☆
2022	95.8	55 of 1206	95.4%	★★★★★

Male

Year	Avg score	Statewide rank	Georgia percentile	Rating
2026	89.0	131 of 1183	88.9%	★★★★☆
2025	93.0	90 of 1225	92.7%	★★★★★
2024	95.6	52 of 1220	95.7%	★★★★★
2023	94.2	77 of 1210	93.6%	★★★★★
2022	97.3	36 of 1209	97.0%	★★★★★

Special Education

Year	Avg score	Statewide rank	Georgia percentile	Rating
2026	57.3	164 of 465	64.7%	★★★☆☆
2025	98.7	6 of 565	98.9%	★★★★★
2022	78.8	58 of 415	86.0%	★★★★☆

White

Year	Avg score	Statewide rank	Georgia percentile	Rating
2026	73.3	194 of 700	72.3%	★★★★☆
2025	74.2	182 of 769	76.3%	★★★★☆
2024	79.4	145 of 772	81.2%	★★★★☆
2023	76.0	179 of 775	76.9%	★★★★☆
2022	89.8	56 of 779	92.8%	★★★★★

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Female (2026)92nd percentile~ school

Male (2026)89th percentile~ school

White (2026)72nd percentile-18 vs school

Special Education (2026)65th percentile-26 vs school

By subject vs Georgia (2025-2026) ?

Science77%+32 vs state

Mathematics70%+23 vs state

3.3

6 ratings · 5 written reviews

5★3

4★0

3★1

2★0

1★2

Rate Garrison Mill Elementary School

Have first-hand experience? A quick rating - and a sentence or two about what stands out (teachers, academics, safety, communication) - helps other families know what to expect.

Takes about a minute. We email you a link to verify your review - your address is never shown publicly.

Tap a star to rate

What people are saying

by a parent
Monday, February 11, 2019

They need to stop suspending Special Needs children! Watch out.... Close Quote

by a parent
Friday, August 15, 2014

I have two daughters at GM. We have been extremely pleased with the teacher quality, the administration, and the parent involvement.
My one critique is the student/teacher ratio has increased the last couple of years. I hope this trend reverses itself. Close Quote

by a parent
Friday, May 2, 2014

We moved here for the schools and are glad that we did. We had heard that Garrison Mill was a particularly good school within the east cobb system, and have been very impressed by the level of academic work that is expected of students, as well as the high level of parental involvement in classrooms and PTA. It was initially an adjustment to bring our kids up to the higher expectations and workload, but I am so grateful that we made this decision. Elementary school is a time to build the foundation for later years, and I am amazed by how much my kids are growing academically in this environment. The excellent programing in the arts and music are a nice plus as well. Close Quote

by a parent
Thursday, February 28, 2013

Garrison Mill ES is terrible when it comes to working with parents who are in a divorce situation. Neither the teachers nor the administration are willing to communicate with both parents - they prefer to only talk to the parent who has physical custody even if the non-custodial parent has joint legal custody and even when it is specifically written in the divorce decree that both parents shall have access to all school records, conferences, contact with teachers, etc. This kind of treatment is not an isolated event because this has occurred over a few years and through different grade levels. They have a few excuses as to why they will only communicate with one parent, will not set up a seperate conference for both parents, etc., and all of their excuses are related to laziness. The teachers that we have had the "pleasure" of working with at Garrison Mill think it's a hastle to email you a copy of a progress report or report card and they get irritated very easily over little things. Garrison Mill teachers also think parents are incompetent idiots...they assume you don't know how to parent and will freely give you advice that is demeaning. This school may have great test scores but I would attribute that more to the parents than to the teachers. Be aware - great test scores don't mean that everything else in a school is great too. Close Quote

by a parent
Tuesday, March 6, 2012

Yes, the test scores are great at this school, so is the student/teacher ratio and parent involvement. However, faculty here are quite comfortable and there is very little turnover. This leads to less innovation and "freshness" among the staff. Great environment for children of stay at home parents. Otherwise, difficult system to find the services needed. Close Quote

Schools Near Garrison Mill Elementary School

Load more schools when map is moved

Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				Milestones Assessment Mathematics (2026)			Milestones Assessment Science (2026)	Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	Milestones Assessment Mathematics 3rd Grade	Milestones Assessment Mathematics 4th Grade	Milestones Assessment Mathematics 5th Grade	Milestones Assessment Science 5th Grade	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Garrison Mill Elementary School	Public	PK, KG-5	4111 Wesley Chapel Rd	Marietta	30062	Cobb County	Cobb County	No	No	No	No	(770) 642-5600	649	46	14.0	11.7%	446 (68.7%)	38 (5.9%)	56 (8.6%)	75 (11.6%)	0 (0.0%)	0 (0.0%)	34 (5.2%)	91.4	115^th of 1219 public elementary schools	90.6%		91.2	116^th of 1238 public elementary schools	90.6%	1	64.1	75.5	71.1	76.6	$16,212	$354	$15,858
Shallowford Falls Elementary School	Public	PK, KG-5	3529 Lassiter Rd	Marietta	30062	Cobb County	Cobb County	No	No	No	No	(770) 642-5610	591	53	11.1	14.7%	391 (66.2%)	36 (6.1%)	57 (9.6%)	64 (10.8%)	2 (0.3%)	0 (0.0%)	41 (6.9%)	91.7	112^th of 1219 public elementary schools	90.8%		90.6	125^th of 1238 public elementary schools	89.9%	13	85.3	76.7	64.5	66.4	$18,705	$388	$18,318
Mountain Park Elementary School	Public	PK, KG-5	11895 Mountain Park Rd	Roswell	30075	Fulton County	Fulton County	No	No	No	No	(470) 254-4530	735	52	14.1	9.5%	563 (76.6%)	37 (5.0%)	66 (9.0%)	23 (3.1%)	0 (0.0%)	1 (0.1%)	45 (6.1%)	98.5	12^th of 1219 public elementary schools	99.0%		98.1	24^th of 1238 public elementary schools	98.1%	12	89.2	92.9	83.8	81.4	$16,846	$558	$16,288
Tritt Elementary School	Public	PK, KG-5	4435 Post Oak Tritt Rd	Marietta	30062	Cobb County	Cobb County	No	No	No	No	(770) 642-5630	804	60	13.4	9.2%	599 (74.5%)	40 (5.0%)	60 (7.5%)	44 (5.5%)	1 (0.1%)	0 (0.0%)	60 (7.5%)	98.2	16^th of 1219 public elementary schools	98.7%		98.2	22^nd of 1238 public elementary schools	98.2%	6	85.9	84.3	86.1	86.7	$16,345	$515	$15,830
Rocky Mount Elementary School	Public	PK, KG-5	2400 Rocky Mountain Rd NE	Marietta	30066	Cobb County	Cobb County	No	No	No	No	(770) 591-5050	576	44	13.1	16.8%	369 (64.1%)	60 (10.4%)	51 (8.9%)	44 (7.6%)	0 (0.0%)	2 (0.3%)	50 (8.7%)	89.2	138^th of 1219 public elementary schools	88.7%		85.7	179^th of 1238 public elementary schools	85.5%	41	82.5	71.9	65.0	60.1	$16,959	$385	$16,573
Mountain View Elementary School	Public	PK, KG-5	3151 Sandy Plains Rd	Marietta	30066	Cobb County	Cobb County	No	No	No	No	(770) 578-7265	837	63	13.2	18.6%	441 (52.7%)	59 (7.0%)	115 (13.7%)	167 (20.0%)	1 (0.1%)	0 (0.0%)	54 (6.5%)	94.2	84^th of 1219 public elementary schools	93.1%		96.6	52^nd of 1238 public elementary schools	95.8%	32	67.2	82.7	81.7	78.6	$16,133	$319	$15,813
Davis Elementary School	Public	PK, KG-5	2433 Jamerson Rd	Marietta	30066	Cobb County	Cobb County	No	No	No	No	(678) 494-7636	635	44	14.4	12.8%	404 (63.6%)	49 (7.7%)	62 (9.8%)	67 (10.6%)	1 (0.2%)	0 (0.0%)	52 (8.2%)	94.4	82^nd of 1219 public elementary schools	93.3%		86.3	169^th of 1238 public elementary schools	86.3%	87	79.8	80.6	77.1	67.2	$15,523	$326	$15,197
Murdock Elementary School	Public	PK, KG-5	2320 Murdock Rd	Marietta	30062	Cobb County	Cobb County	No	No	No	No	(770) 509-5071	847	62	13.7	11.5%	459 (54.2%)	63 (7.4%)	89 (10.5%)	167 (19.7%)	2 (0.2%)	0 (0.0%)	67 (7.9%)	95.7	57^th of 1219 public elementary schools	95.3%		97.4	32^nd of 1238 public elementary schools	97.4%	25	81.1	74.8	82.3	78.6	$15,839	$418	$15,421
Keheley Elementary School	Public	PK, KG-5	1985 Kemp Rd	Marietta	30066	Cobb County	Cobb County	No	No	No	No	(678) 494-7836	393	38	10.3	37.2%	236 (60.1%)	39 (9.9%)	65 (16.5%)	12 (3.1%)	0 (0.0%)	0 (0.0%)	41 (10.4%)	73.2	290^th of 1219 public elementary schools	76.2%		63.6	398^th of 1238 public elementary schools	67.9%	108	60.7	61.2	60.7	44.7	$20,881	$327	$20,554
Addison Elementary School	Public	PK, KG-5	3055 Ebenezer Rd	Marietta	30066	Cobb County	Cobb County	No	No	No	No	(770) 578-2700	571	48	11.8	33.6%	280 (49.0%)	75 (13.1%)	116 (20.3%)	38 (6.7%)	1 (0.2%)	0 (0.0%)	61 (10.7%)	87.8	150^th of 1219 public elementary schools	87.7%		85.8	173^rd of 1238 public elementary schools	86.0%	23	60.6	63.4	76.1	85.9	$17,832	$321	$17,512

Frequently Asked Questions about Garrison Mill Elementary School

Is Garrison Mill Elementary School a good school?

Yes. Garrison Mill Elementary School ranks in the top 9.4% of Georgia elementary schools.

What district is Garrison Mill Elementary School in?

Cobb County

How many students attend Garrison Mill Elementary School?

In the 2024-25 school year, 649 students attended Garrison Mill Elementary School.

What schools do graduates of Garrison Mill Elementary School attend?

Students who attend Garrison Mill Elementary School usually go on to attend:

Middle : Mabry Middle School
High : Lassiter High School

What is the racial makeup of Garrison Mill Elementary School?

Students at Garrison Mill Elementary School are 69% White, 12% Asian, 9% Hispanic, 6% African American, 5% Two or more races.

Rate Garrison Mill Elementary School!

Other helpful SchoolDigger resources...

Compare to nearby schools

GAGeorgia Elementary School Rankings

GAGeorgia District Rankings

Schools in Marietta, GA

Sign up for updates!

Be the first to know when there is an update for Garrison Mill Elementary School!

Latest Georgia data All new data »

2025–26 attendance dataNewAug 6, 2026

2025–26 Milestones Assessment scoresNewAug 6, 2026

2021–22 through 2024–25 Milestones Assessment scores (updated)NewAug 6, 2026

2024–25 dropout ratesFeb 19, 2026

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Georgia Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.