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Cosumnes Oaks High

Q: Is Cosumnes Oaks High a good school?

Cosumnes Oaks High ranks 555 th of 2137 California high schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades 9-12

555^th

SchoolDigger Rank ?

of 2,137 California High Schools

Better than 74% of California high schools

Summary

Cosumnes Oaks High is a public high school in Elk Grove, California, serving grades 9–12 in Elk Grove Unified and enrolling 2,109 students. Its overall science proficiency in 2025–2026 was 40%, above the state’s 36% and the district’s 37%, but the 12th-grade result was a striking exception: just 7%, compared with 33% statewide and 17% districtwide.

English language arts is the school’s clearest strength among nearby high schools: 66% of students were proficient, second only to Pleasant Grove High at 74%, and above the state’s 49% and district’s 54%. Math is more mixed. Cosumnes Oaks’ 40% was slightly above the state’s 38%, but below the district’s 44% and the nearby results at Pleasant Grove (61%) and Franklin High (46%). Its all-grades science result was also above state and district averages, but below nearby leaders.

Scores have declined since 2022–2023: ELA fell 8 percentage points, math 4, and science 8, narrowing the school’s advantages over the state. Still, SchoolDigger placed it at the 74th percentile with 4 stars in 2025–2026, above most nearby schools but down 14 percentile points from 2022–2023. The student–teacher ratio was 21.4 in 2024–2025, and 39% of students were free/reduced lunch eligible that year. SchoolDigger’s statewide subgroup rankings also show notable differences: the school ranked at the 29th percentile for how well it serves Asian students and the 24th percentile for Multi-racial students, compared with the 74th percentile overall.

2,109

Students ?

21.4

Student/teacher ratio ?

$21,168

Per pupil spending ?

38.9%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

8350 Lotz Pkwy.
Elk Grove, CA 95757

(916) 683-7670

District: Elk Grove Unified

Feeder schools for Cosumnes Oaks High:

Elementary:	Elliott Ranch Elementary
	Franklin Elementary
	Zehnder Ranch Elementary
Middle:	Elizabeth Pinkerton Middle

Racial breakdown:

Asian:

43.1%

Hispanic:

19.9%

White:

13.7%

See top rated California high schools

Compare Cosumnes Oaks High to nearby high schools!

At a glance

▼ Ranking trend: Declining — 86th percentile in 2016 → 74th in 2026

Strengths

✓Test scores above the California average (48% vs 42% meeting standards)

✓97% graduate in 4 years — above the California average (88%)

✓Among the top-ranked schools in Elk Grove Unified

Worth a look

!Ranking has slipped — down 12 percentile points since 2016

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

Students meeting standards (2025-2026) ?

This school48%

District avg47%

California avg42%

555^th of 2,137

California public high schools ?

Top 26%▼ down 12 pts since 2016

From top 14% (2016) to top 26% (2026)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

3^rd of 13High Schools in the Elk Grove Unified

350^th of 968Elk Grove Unified among California 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	California percentile	Rating
2026	72.9	555 of 2137	74.0%	★★★★☆
2025	78.4	442 of 2162	79.6%	★★★★☆
2024	86.0	307 of 2159	85.8%	★★★★☆
2023	88.3	252 of 2170	88.4%	★★★★☆
2022	86.0	268 of 2123	87.4%	★★★★☆
2021	87.0	171 of 1290	86.7%	★★★★☆
2019	88.1	217 of 2133	89.8%	★★★★☆
2018	81.7	378 of 2017	81.3%	★★★★☆
2017	85.6	297 of 2021	85.3%	★★★★☆
2016	84.7	291 of 2039	85.7%	★★★★☆
2015	86.7	239 of 1994	88.0%	★★★★☆
2013	64.4	438 of 2426	81.9%	★★★★☆
2012	62.4	478 of 2354	79.7%	★★★★☆
2011	64.6	407 of 2367	82.8%	★★★★☆
2010	57.2	573 of 2281	74.9%	★★★★☆
2009	80.3	109 of 2238	95.1%	★★★★★

African American

Year	Avg score	Statewide rank	California percentile	Rating
2026	55.5	183 of 491	62.7%	★★★☆☆
2025	52.9	211 of 523	59.7%	★★★☆☆
2024	53.8	192 of 517	62.9%	★★★☆☆
2023	66.8	141 of 521	72.9%	★★★★☆
2022	81.3	69 of 522	86.8%	★★★★☆
2019	64.5	157 of 592	73.5%	★★★★☆
2018	59.4	199 of 582	65.8%	★★★☆☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2026	35.8	408 of 575	29.0%	★☆☆☆☆
2025	47.4	353 of 585	39.7%	★★☆☆☆
2024	64.6	245 of 573	57.2%	★★★☆☆
2023	61.3	272 of 591	54.0%	★★★☆☆
2022	59.1	273 of 581	53.0%	★★★☆☆
2019	71.6	177 of 582	69.6%	★★★☆☆
2018	52.5	320 of 581	44.9%	★★☆☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	66.8	224 of 1161	80.7%	★★★★☆
2021	76.9	75 of 555	86.5%	★★★★☆
2019	40.9	541 of 1117	51.6%	★★★☆☆
2018	68.7	201 of 1052	80.9%	★★★★☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	86.7	55 of 1085	94.9%	★★★★★
2023	84.9	48 of 1064	95.5%	★★★★★
2022	80.7	57 of 1044	94.5%	★★★★★
2021	93.1	23 of 467	95.1%	★★★★★
2019	71.9	106 of 941	88.7%	★★★★☆
2018	77.4	109 of 938	88.4%	★★★★☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	73.9	466 of 1865	75.0%	★★★★☆
2025	74.5	453 of 1906	76.2%	★★★★☆
2024	82.0	326 of 1915	83.0%	★★★★☆
2023	84.9	271 of 1915	85.8%	★★★★☆
2022	86.4	224 of 1858	87.9%	★★★★☆
2021	86.3	137 of 1054	87.0%	★★★★☆
2019	85.7	231 of 1833	87.4%	★★★★☆
2018	77.6	392 of 1760	77.7%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	70.0	497 of 1880	73.6%	★★★★☆
2025	69.0	507 of 1900	73.3%	★★★★☆
2024	74.4	395 of 1902	79.2%	★★★★☆
2023	88.1	169 of 1917	91.2%	★★★★★
2022	83.8	208 of 1861	88.8%	★★★★☆
2019	86.2	168 of 1814	90.7%	★★★★★
2018	78.1	345 of 1742	80.2%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	65.6	624 of 1999	68.8%	★★★☆☆
2025	80.0	331 of 2013	83.6%	★★★★☆
2024	80.1	335 of 2026	83.5%	★★★★☆
2023	86.1	233 of 2030	88.5%	★★★★☆
2022	86.9	191 of 1943	90.2%	★★★★★
2021	82.0	161 of 1126	85.7%	★★★★☆
2019	81.2	270 of 1937	86.1%	★★★★☆
2018	69.5	526 of 1862	71.8%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	68.0	586 of 1932	69.7%	★★★☆☆
2025	78.5	387 of 1942	80.1%	★★★★☆
2024	86.3	262 of 1948	86.6%	★★★★☆
2023	88.4	233 of 1963	88.1%	★★★★☆
2022	82.1	292 of 1916	84.8%	★★★★☆
2021	84.9	172 of 1122	84.7%	★★★★☆
2019	85.7	236 of 1880	87.4%	★★★★☆
2018	81.4	336 of 1834	81.7%	★★★★☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2026	25.7	444 of 588	24.5%	★☆☆☆☆
2025	47.7	318 of 577	44.9%	★★☆☆☆
2024	33.7	391 of 574	31.9%	★★☆☆☆
2023	37.5	348 of 541	35.7%	★★☆☆☆
2022	51.0	257 of 515	50.1%	★★★☆☆
2019	60.2	169 of 422	60.0%	★★★☆☆
2018	43.3	221 of 366	39.6%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	49.4	480 of 1235	61.1%	★★★☆☆
2025	52.0	449 of 1252	64.1%	★★★☆☆
2024	27.6	889 of 1216	26.9%	★☆☆☆☆
2023	66.0	257 of 1197	78.5%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2026	42.9	680 of 1132	39.9%	★★☆☆☆
2025	37.9	757 of 1155	34.5%	★★☆☆☆
2024	69.7	351 of 1173	70.1%	★★★★☆
2023	67.7	375 of 1193	68.6%	★★★☆☆
2022	62.5	429 of 1204	64.4%	★★★☆☆
2019	83.8	149 of 1222	87.8%	★★★★☆
2018	79.3	237 of 1173	79.8%	★★★★☆

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)

English Language Learner (2024)95th percentile+9 vs school

Disabled (2022)81st percentile-7 vs school

Female (2026)75th percentile~ school

Hispanic (2026)74th percentile~ school

Male (2026)70th percentile-4 vs school

Low Socio Economic Status (2026)69th percentile-5 vs school

African American (2026)63rd percentile-11 vs school

Special Education (2026)61st percentile-13 vs school

White (2026)40th percentile-34 vs school

Asian (2026)29th percentile-45 vs school

Multi-racial (2026)24th percentile-50 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy66%+16 vs state

Mathematics40%~ state avg

Science40%+4 vs state

★

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Schools Near Cosumnes Oaks High

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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)				CAST Science (2026)					Smarter Balanced Assessments English Language Arts/Literacy (2026)				Smarter Balanced Assessments Mathematics (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/reduced lunch (2024-25)	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	CAST Science 8th Grade	CAST Science 10th Grade	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Cosumnes Oaks High	Public	9-12	8350 Lotz Pkwy.	Elk Grove	95757	Sacramento County	Elk Grove Unified	No	(n/a)	No	(n/a)	(916) 683-7670	2,109	98	21.4	38.9%	289 (13.7%)	246 (11.7%)	420 (19.9%)	909 (43.1%)	7 (0.3%)	15 (0.7%)	223 (10.6%)	72.9	555^th of 2137 public high schools	74.0%		78.4	442^nd of 2162 public high schools	79.6%	113			40.8	7.1	39.8			65.6	65.6			40.0	40.0	$21,168	$20,828	$340
Elk Grove High	Public	9-12	8850 Valley Oak Ln.	Elk Grove	95624	Sacramento County	Elk Grove Unified	No	(n/a)	No	(n/a)	(916) 686-7741	1,684	82	20.4	46.9%	578 (34.3%)	118 (7.0%)	499 (29.6%)	276 (16.4%)	10 (0.6%)	34 (2.0%)	169 (10.0%)	65.3	705^th of 2137 public high schools	67.0%		60	822^nd of 2162 public high schools	62.0%	117			40.9		40.7			58.7	58.7			31.4	31.4	$24,928	$24,472	$456
Franklin High	Public	9-12	6400 Whitelock Pkwy.	Elk Grove	95757	Sacramento County	Elk Grove Unified	No	(n/a)	No	(n/a)	(916) 714-8150	2,650	112	23.5	39.9%	382 (14.4%)	268 (10.1%)	521 (19.7%)	1,123 (42.4%)	6 (0.2%)	25 (0.9%)	325 (12.3%)	75.1	524^th of 2137 public high schools	75.5%		80	412^th of 2162 public high schools	80.9%	112			45.6	29.4	45.1			57.8	57.8			46.3	46.3	$19,767	$19,444	$323
Elk Grove Charter Academy	Public, Charter	7-12	10065 Atkins Dr.	Elk Grove	95757	Sacramento County	Elk Grove Unified	Yes	(n/a)	No	(n/a)	(916) 714-1653	262	14	19.2	57.3%	62 (23.7%)	35 (13.4%)	99 (37.8%)	30 (11.5%)	0 (0.0%)	4 (1.5%)	32 (12.2%)	32.2	1441^st of 2137 public high schools	32.6%		36.3	1350^th of 2162 public high schools	37.6%	91	16.1		21.0		18.3	54.2	36.2	43.3	42.3	34.8	6.9	11.9	13.5	$214	$02	$212
Laguna Creek High	Public	9-12	9050 Vicino Dr.	Elk Grove	95758	Sacramento County	Elk Grove Unified	No	(n/a)	No	(n/a)	(916) 683-1339	2,142	100	21.4	51.9%	337 (15.7%)	289 (13.5%)	614 (28.7%)	612 (28.6%)	12 (0.6%)	30 (1.4%)	248 (11.6%)	63.3	748^th of 2137 public high schools	65.0%		58.9	852^nd of 2162 public high schools	60.6%	104			39.8	32.0	39.4			54.2	54.2			32.7	32.7	$21,831	$21,438	$393
Monterey Trail High	Public	9-12	8661 Power Inn Rd.	Elk Grove	95624	Sacramento County	Elk Grove Unified	No	(n/a)	No	(n/a)	(916) 688-0050	2,263	104	21.7	67.8%	130 (5.7%)	352 (15.6%)	513 (22.7%)	992 (43.8%)	13 (0.6%)	82 (3.6%)	181 (8.0%)	55.2	912^th of 2137 public high schools	57.3%		59.1	847^th of 2162 public high schools	60.8%	65			35.1	20.7	34.3			57.5	57.5			22.5	22.5	$21,626	$20,796	$830
Pleasant Grove High	Public	9-12	9531 Bond Rd.	Elk Grove	95624	Sacramento County	Elk Grove Unified	No	(n/a)	No	(n/a)	(916) 686-0230	2,536	113	22.3	33.5%	741 (29.2%)	130 (5.1%)	447 (17.6%)	896 (35.3%)	17 (0.7%)	21 (0.8%)	284 (11.2%)	90.9	186^th of 2137 public high schools	91.3%		91.3	178^th of 2162 public high schools	91.8%	8			58.8		58.6			74.2	74.2			60.6	60.6	$20,487	$20,116	$371
Calvine High	Public	9-12	8333 Vintage Park Dr.	Sacramento	95828	Sacramento County	Elk Grove Unified	No	(n/a)	No	(n/a)	(916) 689-7502	137	11	13.0	81.8%	17 (12.4%)	30 (21.9%)	51 (37.2%)	20 (14.6%)	2 (1.5%)	3 (2.2%)	14 (10.2%)	6.5	2120^th of 2137 public high schools	0.8%		9.4	2045^th of 2162 public high schools	5.4%	75			0.0		0.0			3.5	3.5			0.0	0.0	$41,722	$40,804	$918
SAVA - Sacramento Academic and Vocational Academy - EGUSD	Public, Charter	7-12	3141 Dwight Rd. Ste. 400	Elk Grove	95758	Sacramento County	SAVA - Sacramento Academy and Vocational Academy - EGUSD Di	Yes	(n/a)	No	(n/a)	(916) 428-3200	360	22	16.0	67.5%	46 (12.8%)	50 (13.9%)	194 (53.9%)	22 (6.1%)	1 (0.3%)	4 (1.1%)	36 (10.0%)	16.4	1726^th of 2137 public high schools	19.2%		29.4	1498^th of 2162 public high schools	30.7%	228	9.1	0.0	2.4	29.4	8.7	20.0	12.5	26.3	22.5	5.0	6.3	1.0	2.7	$33,950	$32,698	$1,252
Valley High	Public	9-12	6300 Ehrhardt Ave.	Sacramento	95823	Sacramento County	Elk Grove Unified	No	(n/a)	No	(n/a)	(916) 689-6500	1,622	83	19.6	78.5%	71 (4.4%)	183 (11.3%)	739 (45.6%)	504 (31.1%)	4 (0.2%)	47 (2.9%)	74 (4.6%)	42.4	1212^th of 2137 public high schools	43.3%		47.7	1079^th of 2162 public high schools	50.1%	133			25.8	9.5	24.9			43.6	43.6			24.2	24.2	$24,622	$23,518	$1,104

Frequently Asked Questions about Cosumnes Oaks High

What district is Cosumnes Oaks High in?

Elk Grove Unified

What schools feed into Cosumnes Oaks High?

Cosumnes Oaks High is fed by the following schools:

Elementary : Elliott Ranch Elementary
Elementary : Franklin Elementary
Elementary : Zehnder Ranch Elementary
Middle : Elizabeth Pinkerton Middle

Is Cosumnes Oaks High a good school?

Cosumnes Oaks High ranks 555^th of 2137 California high schools. SchoolDigger rates this school 4 stars out of 5.

What is the racial makeup of Cosumnes Oaks High?

Students at Cosumnes Oaks High are 43% Asian, 20% Hispanic, 14% White, 12% African American, 11% Two or more races.

How many students attend Cosumnes Oaks High?

In the 2024-25 school year, 2,109 students attended Cosumnes Oaks High.

Rate Cosumnes Oaks High!

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Latest California data All new data »

2025–26 attendance data, dropout rates & graduation ratesNewOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresNewOct 15, 2026

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

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