Best traditional public schools in Cobb County (2025)

District-run public schools. Ranked by the Success Index (US) from official American data; 100 schools in Cobb County, Georgia. Rank positions shown on each profile are within United States and Georgia.

#	School	Sector	Success Index (US)	Key result	Students
1	Shallowford Falls Elementary School Marietta · Elementary · Grades PK–5	Public	92.3 Top 5%	81% Math proficiency	591
2	Timber Ridge Elementary School Marietta · Elementary · Grades PK–5	Public	92.3 Top 5%	87% Math proficiency	529
3	Mount Bethel Elementary School Marietta · Elementary · Grades PK–5	Public	91.9 Top 5%	84% Math proficiency	898
4	Murdock Elementary School Marietta · Elementary · Grades PK–5	Public	91.1 Top 5%	88% Math proficiency	847
5	Tritt Elementary School Marietta · Elementary · Grades PK–5	Public	91.1 Top 5%	81% Math proficiency	804
6	Mountain View Elementary School Marietta · Elementary · Grades PK–5	Public	89.8 Top 5%	84% Math proficiency	837
7	Sope Creek Elementary School Marietta · Elementary · Grades PK–5	Public	89.0 Top 5%	84% Math proficiency	1,104
8	Hightower Trail Middle School Marietta · Middle · Grades 6–8	Public	88.9 Top 5%	89% Math proficiency	944
9	Dodgen Middle School Marietta · Middle · Grades 6–8	Public	88.6 Top 5%	89% Math proficiency	1,178
10	East Side Elementary School Marietta · Elementary · Grades PK–5	Public	87.6 Top 5%	81% Math proficiency	1,072
11	Ford Elementary School Acworth · Elementary · Grades PK–5	Public	87.1 Top 5%	79% Math proficiency	750
12	Dickerson Middle School Marietta · Middle · Grades 6–8	Public	86.8 Top 5%	89% Math proficiency	1,225
13	Garrison Mill Elementary School Marietta · Elementary · Grades PK–5	Public	86.0 Top 5%	76% Math proficiency	649
14	Due West Elementary School Marietta · Elementary · Grades PK–5	Public	85.6 Top 5%	71% Math proficiency	626
15	Rocky Mount Elementary School Marietta · Elementary · Grades PK–5	Public	84.7 Top 10%	68% Math proficiency	576
16	Simpson Middle School Marietta · Middle · Grades 6–8	Public	83.7 Top 10%	75% Math proficiency	884
17	Kemp Elementary School Powder Springs · Elementary · Grades PK–5	Public	83.6 Top 10%	77% Math proficiency	894
18	Mabry Middle School Marietta · Middle · Grades 6–8	Public	83.3 Top 10%	77% Math proficiency	938
19	Pope High School Marietta · High · Grades 9–12	Public	83.2 Top 5%	80% Math proficiency	1,793
20	Lost Mountain Middle School Kennesaw · Middle · Grades 6–8	Public	83.0 Top 10%	76% Math proficiency	979
21	Lassiter High School Marietta · High · Grades 9–12	Public	82.9 Top 10%	85% Math proficiency	2,005
22	Vaughan Elementary School Powder Springs · Elementary · Grades PK–5	Public	82.4 Top 10%	70% Math proficiency	600
23	Durham Middle School Acworth · Middle · Grades 6–8	Public	81.2 Top 10%	72% Math proficiency	984
24	Davis Elementary School Marietta · Elementary · Grades PK–5	Public	80.8 Top 10%	68% Math proficiency	635
25	Frey Elementary School Acworth · Elementary · Grades PK–5	Public	80.2 Top 10%	70% Math proficiency	691
26	Kincaid Elementary School Marietta · Elementary · Grades PK–5	Public	80.2 Top 10%	73% Math proficiency	603
27	Harrison High School Kennesaw · High · Grades 9–12	Public	79.4 Top 10%	77% Math proficiency	2,224
28	Pickett's Mill Elementary School Acworth · Elementary · Grades PK–5	Public	77.7 Top 25%	69% Math proficiency	753
29	Addison Elementary School Marietta · Elementary · Grades PK–5	Public	77.6 Top 25%	67% Math proficiency	571
30	McClure Middle School Kennesaw · Middle · Grades 6–8	Public	77.2 Top 25%	70% Math proficiency	1,030
31	Bullard Elementary School Kennesaw · Elementary · Grades PK–5	Public	77.0 Top 25%	63% Math proficiency	799
32	Lovinggood Middle School Powder Springs · Middle · Grades 6–8	Public	74.8 Top 25%	67% Math proficiency	1,209
33	Still Elementary School Powder Springs · Elementary · Grades PK–5	Public	73.9 Top 25%	60% Math proficiency	755
34	King Springs Elementary School Smyrna · Elementary · Grades PK–5	Public	72.2 Top 25%	59% Math proficiency	1,101
35	Hillgrove High School Powder Springs · High · Grades 9–12	Public	71.3 Top 25%	72% Math proficiency	2,282
36	Keheley Elementary School Marietta · Elementary · Grades PK–5	Public	71.3 Top 25%	55% Math proficiency	393
37	Allatoona High School Acworth · High · Grades 9–12	Public	71.0 Top 25%	66% Math proficiency	1,560
38	Kennesaw Elementary School Kennesaw · Elementary · Grades PK–2	Public	69.9 Top 25%	51.3% Free/reduced-price lunch	560
39	Chalker Elementary School Kennesaw · Elementary · Grades PK–5	Public	69.0 Top 25%	58% Math proficiency	679
40	Cheatham Hill Elementary School Marietta · Elementary · Grades PK–5	Public	68.9 Top 25%	66% Math proficiency	1,021
41	Baker Elementary School Acworth · Elementary · Grades PK–5	Public	67.5 Top 50%	59% Math proficiency	738
42	Eastvalley Elementary School Marietta · Elementary · Grades PK–5	Public	67.5 Top 50%	59% Math proficiency	679
43	McCleskey Middle School Marietta · Middle · Grades 6–8	Public	67.0 Top 50%	53% Math proficiency	540
44	Teasley Elementary School Smyrna · Elementary · Grades PK–5	Public	66.0 Top 50%	56% Math proficiency	974
45	Nicholson Elementary School Marietta · Elementary · Grades PK–5	Public	64.2 Top 50%	52% Math proficiency	413
46	Kennesaw Mountain High School Kennesaw · High · Grades 9–12	Public	64.1 Top 50%	58% Math proficiency	1,695
47	Lewis Elementary School Kennesaw · Elementary · Grades PK–5	Public	63.1 Top 50%	58% Math proficiency	550
48	Awtrey Middle School Kennesaw · Middle · Grades 6–8	Public	62.5 Top 50%	49% Math proficiency	593
49	Bells Ferry Elementary School Marietta · Elementary · Grades PK–5	Public	62.5 Top 50%	64% Math proficiency	704
50	Palmer Middle School Kennesaw · Middle · Grades 6–8	Public	61.6 Top 50%	62% Math proficiency	803
51	Pitner Elementary School Acworth · Elementary · Grades PK–5	Public	61.6 Top 50%	54% Math proficiency	802
52	Big Shanty Elementary School Kennesaw · Elementary · Grades 3–5	Public	60.7 Top 50%	55% Math proficiency	511
53	Pine Mountain Middle School Kennesaw · Middle · Grades 6–8	Public	60.0 Top 50%	52% Math proficiency	506
54	McCall Primary School Acworth · Elementary · Grades PK–1	Public	57.4 Top 50%	71.7% Free/reduced-price lunch	265
55	Daniell Middle School Marietta · Middle · Grades 6–8	Public	57.1 Top 50%	51% Math proficiency	884
56	Barber Middle School Acworth · Middle · Grades 6–8	Public	57.0 Top 50%	52% Math proficiency	790
57	Kell High School Marietta · High · Grades 9–12	Public	56.9 Top 50%	45% Math proficiency	1,587
58	Nickajack Elementary School Smyrna · Elementary · Grades PK–5	Public	54.9 Top 50%	50% Math proficiency	1,260
59	Blackwell Elementary School Marietta · Elementary · Grades PK–5	Public	54.7 Top 50%	47% Math proficiency	580
60	Wheeler High School Marietta · High · Grades 9–12	Public	54.5 Top 50%	53% Math proficiency	2,401
61	North Cobb High School Kennesaw · High · Grades 9–12	Public	51.7 Top 50%	49% Math proficiency	2,463
62	Sprayberry High School Marietta · High · Grades 9–12	Public	51.3 Top 50%	44% Math proficiency	1,769
63	Varner Elementary School Powder Springs · Elementary · Grades PK–5	Public	51.1 Top 50%	47% Math proficiency	705
64	Acworth Elementary School Acworth · Elementary · Grades 2–5	Public	47.5 Lower 50%	40% Math proficiency	499
65	Smyrna Elementary School Smyrna · Elementary · Grades PK–5	Public	45.8 Lower 50%	40% Math proficiency	870
66	Hayes Elementary School Kennesaw · Elementary · Grades PK–5	Public	45.5 Lower 50%	41% Math proficiency	802
67	Milford Elementary School Marietta · Elementary · Grades PK–5	Public	44.5 Lower 50%	52% Math proficiency	389
68	Campbell High School Smyrna · High · Grades 9–12	Public	44.0 Lower 50%	37% Math proficiency	3,085
69	Sedalia Park Elementary School Marietta · Elementary · Grades PK–5	Public	43.9 Lower 50%	42% Math proficiency	634
70	Griffin Middle School Smyrna · Middle · Grades 6–8	Public	41.2 Lower 50%	38% Math proficiency	991
71	Tapp Middle School Powder Springs · Middle · Grades 6–8	Public	41.2 Lower 50%	44% Math proficiency	809
72	East Cobb Middle School Marietta · Middle · Grades 6–8	Public	41.0 Lower 50%	44% Math proficiency	1,352
73	Dowell Elementary School Marietta · Elementary · Grades PK–5	Public	38.7 Lower 50%	38% Math proficiency	898
74	McEachern High School Powder Springs · High · Grades 9–12	Public	38.6 Lower 50%	39% Math proficiency	2,175
75	Argyle Elementary School Smyrna · Elementary · Grades PK–5	Public	37.0 Lower 50%	42% Math proficiency	333
76	Riverside Elementary School Mableton · Elementary · Grades PK–5	Public	36.6 Lower 50%	100% Free/reduced-price lunch	471
77	Cooper Middle School Austell · Middle · Grades 6–8	Public	36.3 Lower 50%	42% Math proficiency	1,000
78	South Cobb High School Austell · High · Grades 9–12	Public	35.3 Lower 50%	38% Math proficiency	2,081
79	Austell Elementary School Austell · Elementary · Grades PK–5	Public	35.1 Lower 50%	40% Math proficiency	367
80	Russell Elementary School Smyrna · Elementary · Grades PK–5	Public	34.8 Lower 50%	38% Math proficiency	568
81	Campbell Middle School Smyrna · Middle · Grades 6–8	Public	33.7 Lower 50%	31% Math proficiency	1,368
82	LaBelle Elementary School Marietta · Elementary · Grades PK–5	Public	33.2 Lower 50%	43% Math proficiency	339
83	Powder Springs Elementary School Powder Springs · Elementary · Grades PK–5	Public	32.5 Lower 50%	38% Math proficiency	805
84	Green Acres Elementary School Smyrna · Elementary · Grades PK–5	Public	31.5 Lower 50%	41% Math proficiency	584
85	Hendricks Elementary School Powder Springs · Elementary · Grades PK–5	Public	31.3 Lower 50%	42% Math proficiency	538
86	Norton Park Elementary School Smyrna · Elementary · Grades PK–5	Public	30.7 Lower 50%	41% Math proficiency	643
87	Brumby Elementary School Marietta · Elementary · Grades PK–5	Public	29.9 Lower 50%	25% Math proficiency	963
88	Clarkdale Elementary School Austell · Elementary · Grades PK–5	Public	29.9 Lower 50%	41% Math proficiency	785
89	Compton Elementary School Powder Springs · Elementary · Grades PK–5	Public	29.8 Lower 50%	34% Math proficiency	593
90	Hollydale Elementary School Marietta · Elementary · Grades PK–5	Public	29.2 Lower 50%	36% Math proficiency	526
91	Smitha Middle School Marietta · Middle · Grades 6–8	Public	29.2 Lower 50%	33% Math proficiency	866
92	Fair Oaks Elementary School Marietta · Elementary · Grades PK–5	Public	28.8 Lower 50%	40% Math proficiency	703
93	Belmont Hills Elementary School Smyrna · Elementary · Grades PK–5	Public	28.0 Lower 50%	32% Math proficiency	267
94	Clay-Harmony Leland Elementary School Mableton · Elementary · Grades PK–5	Public	27.0 Lower 50%	35% Math proficiency	1,013
95	Powers Ferry Elementary School Marietta · Elementary · Grades PK–5	Public	26.3 Lower 50%	31% Math proficiency	475
96	Pearson Middle School Marietta · Middle · Grades 6–8	Public	26.1 Lower 50%	100% Free/reduced-price lunch	806
97	Sanders Elementary School Austell · Elementary · Grades PK–5	Public	25.7 Lower 50%	30% Math proficiency	626
98	Mableton Elementary School Mableton · Elementary · Grades PK–5	Public	24.8 Lower 50%	30% Math proficiency	945
99	Pebblebrook High School Mableton · High · Grades 9–12	Public	24.1 Lower 50%	30% Math proficiency	2,574
100	Betty Gray Middle School Mableton · Middle · Grades 6–8	Public	23.2 Lower 50%	32% Math proficiency	702

Shallowford Falls Elementary School in Marietta leads the 2025 list of traditional public schools in Cobb County with a Success Index (US) of 92.3. Of the 100 schools shown, 100 are public.

For the full picture see the wider Georgia traditional public schools rankings, every school on the Cobb County page, or the comparison tool to put a shortlist side by side.

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Frequently asked questions

What is the best public school in Cobb County?

Shallowford Falls Elementary School in Marietta, Georgia ranks first among traditional public schools in Cobb County with a Success Index (US) of 92.3 out of 100 (Enrollment: 591).

How are traditional public schools in Cobb County ranked?

Each school's Success Index (US) combines 4 factors: math proficiency (30%), reading proficiency (30%), community advantage (fewer free/reduced-price lunch) (25%), students per teacher (15%). Each factor is a percentile against schools of the same type across United States. Schools with fewer than 60 students are excluded from rankings.

Are these 2025 rankings official?

No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.