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Rio Mesa High

Q: Is Rio Mesa High a good school?

Rio Mesa High ranks 1165 th of 2137 California high schools. SchoolDigger rates this school 2 stars out of 5.

Public Grades 9-12

1165^th

SchoolDigger Rank ?

of 2,137 California High Schools

Better than 45% of California high schools

Summary

Rio Mesa High serves grades 9–12 and has 1,951 students in Oxnard, within the Oxnard Union High School District. Its 2025–26 graduation rate was 94%, above the state’s 88%, while chronic absenteeism was 21%, higher than the state’s 18%. The clearest academic concern is that scores remain below state proficiency in every tested subject, with the largest gap in math: 22% proficient at Rio Mesa versus 38% statewide, a 17-point difference.

Among nearby schools with reported 2025–26 results, Rio Mesa placed near the top: third in ELA and math, and second in science, just behind Condor High (29% science proficient versus Rio Mesa’s 28%). ELA was Rio Mesa’s closest subject to the state rate, at 46% versus 49%; science was 28% versus 36%. Math was its weakest state comparison. Against its district, Rio Mesa was 3 points lower in ELA and nearly level in math and science, at about 22% and 28%, respectively, compared with about 22% and 29% districtwide.

Over four years, math rose 6 points and science rose 10, while ELA fell 4 points; the state improved in ELA over that period, and Rio Mesa’s ELA gap shifted from 3 points above the state to 3 points below. Science also fell 3 points from 2024–25 to 2025–26. SchoolDigger rates Rio Mesa 2 stars and places it at the 45th statewide percentile, a midrange local standing. Its 2024–25 student-teacher ratio was 23:1, the second highest reported nearby, and 73% of students were free/reduced lunch eligible. SchoolDigger’s group rankings place Multi-racial Students at the 20th percentile, below the school’s overall 45th; its ranking for Migrant Students rose from the 5th percentile in 2022–23 to the 48th in 2025–26. Group rankings are available only for selected years.

1,951

Students ?

23.0

Student/teacher ratio ?

$28,977

Per pupil spending ?

72.6%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

545 Central Ave.
Oxnard, CA 93030-1045

(805) 278-5500

District: Oxnard Union High

Feeder schools for Rio Mesa High:

Elementary:	Camarillo Heights STEM Academy
	Las Posas Elementary
	Mesa Elementary
	Rio Del Mar
	More...
	Rio del Norte
	Rio Lindo Elementary
	Rio Plaza Elementary
	Rio Rosales
Middle:	Rio del Valle Middle
	Rio Vista Middle

Racial breakdown:

Hispanic:

87.1%

Asian:

4.7%

White:

4.4%

See top rated California high schools

Compare Rio Mesa High to nearby high schools!

At a glance

▼ Ranking trend: Declining — 57th percentile in 2016 → 45th in 2026

Strengths

✓94% graduate in 4 years — above the California average (88%)

Worth a look

!Test scores below the California average (32% vs 42% meeting standards)

!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 school32%

District avg33%

California avg42%

1,165^th of 2,137

California public high schools ?

Bottom 45%▼ down 11 pts since 2016

From top 43% (2016) to bottom 45% (2026)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

6^th of 12High Schools in the Oxnard Union High

394^th of 968Oxnard Union High 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	44.1	1165 of 2137	45.5%	★★☆☆☆
2025	49.8	1044 of 2162	51.7%	★★★☆☆
2024	44.9	1125 of 2159	47.9%	★★☆☆☆
2023	44.8	1111 of 2170	48.8%	★★☆☆☆
2022	34.4	1318 of 2123	37.9%	★★☆☆☆
2021	47.2	644 of 1290	50.1%	★★★☆☆
2019	46.0	1078 of 2133	49.5%	★★☆☆☆
2018	44.2	1140 of 2017	43.5%	★★☆☆☆
2017	47.8	1077 of 2021	46.7%	★★☆☆☆
2016	56.0	879 of 2039	56.9%	★★★☆☆
2015	56.0	853 of 1994	57.2%	★★★☆☆
2013	58.9	560 of 2426	76.9%	★★★★☆
2012	62.4	480 of 2354	79.6%	★★★★☆
2011	58.6	566 of 2367	76.1%	★★★★☆
2010	60.1	516 of 2281	77.4%	★★★★☆
2009	62.1	406 of 2238	81.9%	★★★★☆
2008	55.2	566 of 2117	73.3%	★★★★☆
2007	48.6	690 of 2063	66.6%	★★★☆☆
2006	64.0	386 of 1968	80.4%	★★★★☆
2005	60.2	410 of 1901	78.4%	★★★★☆
2004	61.1	324 of 1653	80.4%	★★★★☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2023	75.9	97 of 521	81.4%	★★★★☆
2019	64.1	160 of 592	73.0%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2018	30.3	426 of 581	26.7%	★☆☆☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	28.3	875 of 1161	24.6%	★☆☆☆☆
2021	36.7	321 of 555	42.2%	★★☆☆☆
2019	44.5	489 of 1117	56.2%	★★★☆☆
2018	39.4	545 of 1052	48.2%	★★☆☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	39.0	608 of 1085	44.0%	★★☆☆☆
2023	62.5	186 of 1064	82.5%	★★★★☆
2022	36.9	622 of 1044	40.4%	★★☆☆☆
2021	33.8	301 of 467	35.5%	★★☆☆☆
2019	30.0	769 of 941	18.3%	★☆☆☆☆
2018	25.4	739 of 938	21.2%	★☆☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	36.8	1189 of 1865	36.2%	★★☆☆☆
2025	48.1	948 of 1906	50.3%	★★★☆☆
2024	46.1	988 of 1915	48.4%	★★☆☆☆
2023	39.5	1120 of 1915	41.5%	★★☆☆☆
2022	33.4	1197 of 1858	35.6%	★★☆☆☆
2021	44.0	579 of 1054	45.1%	★★☆☆☆
2019	44.5	981 of 1833	46.5%	★★☆☆☆
2018	36.8	1168 of 1760	33.6%	★★☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	46.0	997 of 1880	47.0%	★★☆☆☆
2025	49.6	944 of 1900	50.3%	★★★☆☆
2024	48.1	956 of 1902	49.7%	★★☆☆☆
2023	46.6	986 of 1917	48.6%	★★☆☆☆
2022	35.5	1191 of 1861	36.0%	★★☆☆☆
2019	42.6	1049 of 1814	42.2%	★★☆☆☆
2018	39.5	1108 of 1742	36.4%	★★☆☆☆

Homeless

Year	Avg score	Statewide rank	California percentile	Rating
2026	47.0	175 of 358	51.1%	★★★☆☆
2025	33.4	268 of 410	34.6%	★★☆☆☆
2024	45.1	182 of 328	44.5%	★★☆☆☆
2023	26.7	218 of 299	27.1%	★☆☆☆☆
2022	15.6	262 of 290	9.7%	☆☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	45.2	1092 of 1999	45.4%	★★☆☆☆
2025	48.6	992 of 2013	50.7%	★★★☆☆
2024	47.5	1004 of 2026	50.4%	★★★☆☆
2023	43.1	1101 of 2030	45.8%	★★☆☆☆
2022	36.7	1209 of 1943	37.8%	★★☆☆☆
2021	47.5	581 of 1126	48.4%	★★☆☆☆
2019	41.7	1132 of 1937	41.6%	★★☆☆☆
2018	36.4	1218 of 1862	34.6%	★★☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	45.3	1024 of 1932	47.0%	★★☆☆☆
2025	47.0	976 of 1942	49.7%	★★☆☆☆
2024	39.8	1115 of 1948	42.8%	★★☆☆☆
2023	46.0	955 of 1963	51.3%	★★★☆☆
2022	31.3	1264 of 1916	34.0%	★★☆☆☆
2021	41.4	634 of 1122	43.5%	★★☆☆☆
2019	40.7	1070 of 1880	43.1%	★★☆☆☆
2018	45.2	1002 of 1834	45.4%	★★☆☆☆

Migrant

Year	Avg score	Statewide rank	California percentile	Rating
2026	47.6	43 of 82	47.6%	★★☆☆☆
2024	24.9	69 of 85	18.8%	★☆☆☆☆
2023	18.8	70 of 74	5.4%	☆☆☆☆☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2026	21.3	471 of 588	19.9%	★☆☆☆☆
2024	39.4	361 of 574	37.1%	★★☆☆☆
2023	34.1	362 of 541	33.1%	★★☆☆☆
2022	31.6	375 of 515	27.2%	★☆☆☆☆
2018	74.4	92 of 366	74.9%	★★★★☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	29.9	867 of 1235	29.8%	★☆☆☆☆
2025	33.8	792 of 1252	36.7%	★★☆☆☆
2024	36.6	677 of 1216	44.3%	★★☆☆☆
2023	26.8	924 of 1197	22.8%	★☆☆☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	65.4	397 of 1155	65.6%	★★★☆☆
2024	55.8	514 of 1173	56.2%	★★★☆☆
2023	38.7	747 of 1193	37.4%	★★☆☆☆
2022	38.6	737 of 1204	38.8%	★★☆☆☆
2019	57.0	521 of 1222	57.4%	★★★☆☆
2018	66.5	432 of 1173	63.2%	★★★☆☆

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)

African American (2023)81st percentile+33 vs school

White (2025)66th percentile+14 vs school

Homeless (2026)51st percentile+6 vs school

Migrant (2026)48th percentile~ school

Male (2026)47th percentile~ school

Hispanic (2026)47th percentile~ school

Low Socio Economic Status (2026)45th percentile~ school

English Language Learner (2024)44th percentile-4 vs school

Female (2026)36th percentile-9 vs school

Special Education (2026)30th percentile-16 vs school

Asian (2018)27th percentile-17 vs school

Disabled (2022)25th percentile-13 vs school

Multi-racial (2026)20th percentile-26 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy46%-3 vs state

Science28%-8 vs state

Mathematics22%-17 vs state

★

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Schools Near Rio Mesa 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 5th Grade	CAST Science 8th Grade	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	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 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	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
Rio Mesa High	Public	9-12	545 Central Ave.	Oxnard	93030	Ventura County	Oxnard Union High	No	(n/a)	No	(n/a)	(805) 278-5500	1,951	85	23.0	72.6%	86 (4.4%)	20 (1.0%)	1,700 (87.1%)	92 (4.7%)	0 (0.0%)	1 (0.1%)	43 (2.2%)	44.1	1165^th of 2137 public high schools	45.5%		49.8	1044^th of 2162 public high schools	51.7%	121			28.4		28.2							45.8	45.8							21.8	21.8	$28,977	$27,048	$1,929
Condor High	Public	9-12	1800 Solar Dr.	Oxnard	93030	Ventura County	Oxnard Union High	No	(n/a)	No	(n/a)	(805) 385-2552	411	21	19.1	76.2%	34 (8.3%)	2 (0.5%)	358 (87.1%)	5 (1.2%)	0 (0.0%)	1 (0.2%)	11 (2.7%)	52.4	983^rd of 2137 public high schools	54.0%		18.5	1721^st of 2162 public high schools	20.4%	738			29.6	21.4	28.6							41.4	41.4							37.1	37.1	$26,713	$26,016	$697
Pacifica High	Public	9-12	600 East Gonzales Rd.	Oxnard	93036	Ventura County	Oxnard Union High	No	(n/a)	No	(n/a)	(805) 278-5000	2,675	112	23.8	81.2%	36 (1.3%)	36 (1.3%)	2,486 (92.9%)	81 (3.0%)	0 (0.0%)	10 (0.4%)	24 (0.9%)	34.9	1376^th of 2137 public high schools	35.6%		28.8	1505^th of 2162 public high schools	30.4%	129			24.5		24.1							42.4	42.4							13.8	13.8	$25,975	$24,708	$1,267
Del Sol High	Public	9-12	1975 Camino Del Sol	Oxnard	93030	Ventura County	Oxnard Union High	No	(n/a)	No	(n/a)	(805) 385-2700	808	41	19.6	87.3%	19 (2.4%)	5 (0.6%)	760 (94.1%)	15 (1.9%)	1 (0.1%)	0 (0.0%)	7 (0.9%)	23.7	1601^st of 2137 public high schools	25.1%					(n/a)			21.7		21.7							28.8	28.8							7.9	7.9	$34,691	$32,352	$2,339
Vista Real Charter High	Public, Charter	9-12	401 South A St. Ste. 3	Oxnard	93535	Los Angeles County	Vista Real Charter High District	Yes	(n/a)	No	(n/a)	(805) 486-5449	1,271	63	20.2	84.1%	186 (14.6%)	8 (0.6%)	1,009 (79.4%)	3 (0.2%)	0 (0.0%)	1 (0.1%)	51 (4.0%)								(n/a)
Buena High	Public	9-12	5670 Telegraph Rd.	Ventura	93003	Ventura County	Ventura Unified	No	(n/a)	No	(n/a)	(805) 289-1826	1,585	72	22.0	60.2%	477 (30.1%)	22 (1.4%)	965 (60.9%)	47 (3.0%)	8 (0.5%)	1 (0.1%)	55 (3.5%)	43.5	1187^th of 2137 public high schools	44.5%		51.3	1012^th of 2162 public high schools	53.2%	175			27.1		27.0							49.5	49.5							19.1	19.1	$18,373	$17,156	$1,217
Oxnard High	Public	9-12	3400 West Gonzales Rd.	Oxnard	93036	Ventura County	Oxnard Union High	No	(n/a)	No	(n/a)	(805) 278-2907	2,452	108	22.7	76.1%	116 (4.7%)	38 (1.5%)	2,141 (87.3%)	86 (3.5%)	6 (0.2%)	7 (0.3%)	56 (2.3%)	47.7	1087^th of 2137 public high schools	49.1%		44.6	1153^rd of 2162 public high schools	46.7%	66			28.0	8.3	27.6							49.4	49.4							24.9	24.9	$27,820	$26,366	$1,454
Frontier High	Public	9-12	545 Airport Way	Camarillo	93010	Ventura County	Oxnard Union High	No	(n/a)	No	(n/a)	(805) 389-6450	260	21	12.3	95.4%	8 (3.1%)	1 (0.4%)	247 (95.0%)	0 (0.0%)	0 (0.0%)	1 (0.4%)	2 (0.8%)	9.3	1984^th of 2137 public high schools	7.2%		8.8	2080^th of 2162 public high schools	3.8%	96			5.8	5.0	5.7							10.1	10.1							0.8	0.8	$56,533	$54,872	$1,661
Gateway Community	Public	6-12	200 Horizon Cir.	Camarillo	93010	Ventura County	Ventura County Office of Education	No	(n/a)	No	(n/a)	(805) 437-1460	69	6	10.6	82.6%	1 (1.4%)	0 (0.0%)	65 (94.2%)	0 (0.0%)	1 (1.4%)	0 (0.0%)	2 (2.9%)	6.5	2115^th of 2137 public high schools	1.0%		7	2148^th of 2162 public high schools	0.6%	33		0.0			0.0						0.0	0.0	3.2						0.0	0.0	0.0
Phoenix	Public	6-12	500 Airport Way	Camarillo	93010	Ventura County	Ventura County Office of Education	No	(n/a)	No	(n/a)	(805) 437-1400	76	11	6.6	63.2%	18 (23.7%)	4 (5.3%)	50 (65.8%)	1 (1.3%)	0 (0.0%)	0 (0.0%)	1 (1.3%)	8	2056^th of 2137 public high schools	3.8%		7	2148^th of 2162 public high schools	0.6%	92					0.0							9.1	7.7							0.0	2.7

Frequently Asked Questions about Rio Mesa High

Is Rio Mesa High a good school?

Rio Mesa High ranks 1165^th of 2137 California high schools. SchoolDigger rates this school 2 stars out of 5.

What is the racial makeup of Rio Mesa High?

Students at Rio Mesa High are 87% Hispanic, 5% Asian, 4% White, 2% Two or more races, 1% African American.

What district is Rio Mesa High in?

Oxnard Union High

How many students attend Rio Mesa High?

In the 2024-25 school year, 1,951 students attended Rio Mesa High.

What schools feed into Rio Mesa High?

Rio Mesa High is fed by the following schools:

Elementary : Camarillo Heights STEM Academy
Elementary : Las Posas Elementary
Elementary : Mesa Elementary
Elementary : Rio Del Mar
Elementary : Rio del Norte
Elementary : Rio Lindo Elementary
Elementary : Rio Plaza Elementary
Elementary : Rio Rosales
Middle : Rio del Valle Middle
Middle : Rio Vista Middle

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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.