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Rio Mesa High

Q: Is Rio Mesa High a good school?

Rio Mesa High ranks 1044 th of 2162 California high schools. SchoolDigger rates this school 3 stars out of 5.

Public Grades 9-12

1044^th

SchoolDigger Rank ?

of 2,162 California High Schools

Better than 52% of California high schools

Summary

Rio Mesa High is a large public high school serving approximately 1,950 students in grades 9-12 within the Oxnard Union High district, performing consistently around the state average.

The school has clear strengths, particularly in its science program, where student proficiency significantly outpaces the district average and rivals the state average, and in its strong 93.2% graduation rate. It also manages student attendance better than many district peers, with a chronic absenteeism rate lower than the Oxnard Union High district average. When compared to nearby schools like Oxnard High and Pacifica High, Rio Mesa often performs favorably in these key areas.

Like other schools in its district, Rio Mesa faces a significant challenge with mathematics proficiency, which lags behind state averages. An interesting comparison can be made with Buena High in the neighboring Ventura Unified district, which has similar demographics but higher English Language Arts scores and lower chronic absenteeism, suggesting potential areas for growth. Overall, Rio Mesa is a stable, solid-performing school with notable successes in science and graduation, alongside district-wide challenges in math.

1,951

Students ?

23.0

Student/teacher ratio ?

$28,977

Per pupil spending ?

72.6%

Free/discounted lunch ?

545 Central Ave.
Oxnard, CA 93036-1045

(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: Rebounding — 38th percentile in 2022 → 52nd in 2025

Strengths

✓93% graduate in 4 years — above the California average (88%)

✓Ranking is rebounding — up to 52nd (2025) from a 38th-percentile low (2022)

✓Above the California median (52nd percentile)

Worth a look

!Test scores below the California average (33% vs 41% meeting standards)

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

!Mathematics scores 17 pts below the California average

Students meeting standards (2024-2025) ?

This school33%

District avg29%

California avg41%

1,044^th of 2,162

California public high schools ?

Top 48%▼ down 6 pts since 2015

From top 43% (2015) to top 48% (2025)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

4^th of 10High Schools in the Oxnard Union High

804^th of 1,543Oxnard 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
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
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
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
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
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
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
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
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
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

Low Socio Economic Status (2025)51st percentile~ school

Hispanic (2025)50th percentile~ school

Female (2025)50th percentile~ school

Male (2025)50th percentile~ school

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

Multi-racial (2024)37th percentile-11 vs school

Special Education (2025)37th percentile-15 vs school

Homeless (2025)35th percentile-17 vs school

Asian (2018)27th percentile-17 vs school

Disabled (2022)25th percentile-13 vs school

Migrant (2024)19th percentile-29 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy46%~ state avg

Science32%~ state avg

Mathematics20%-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 (2025)				Ranking (2024)				CAST Science (2025)				Smarter Balanced Assessments English Language Arts/Literacy (2025)			Smarter Balanced Assessments Mathematics (2025)			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 (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 8th Grade	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	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 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	93036	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%)	49.8	1044^th of 2162 public high schools	51.7%		44.9	1125^th of 2159 public high schools	47.9%	81		32.2		31.7		46.4	46.4		20.2	20.2	$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%)	18.5	1721^st of 2162 public high schools	20.4%		30	1491^st of 2159 public high schools	30.9%	230		11.0	9.1	10.9		28.3	28.3		3.4	3.4	$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%)	28.8	1505^th of 2162 public high schools	30.4%		31.6	1456^th of 2159 public high schools	32.6%	49		17.0		16.8		36.7	36.7		10.9	10.9	$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%)								(n/a)											$34,691	$32,352	$2,339
Vista Real Charter High	Public, Charter	9-12	401 South A St. Ste. 3	Oxnard	93030	Ventura 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%)	19.1	1710^th of 2162 public high schools	20.9%		21.4	1672^nd of 2159 public high schools	22.6%	38			9.1	9.1		30.3	30.3		2.4	2.4
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%)	51.3	1012^th of 2162 public high schools	53.2%		55.2	874^th of 2159 public high schools	59.5%	138		27.6	9.1	27.0		54.7	54.7		20.8	20.8	$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%)	44.6	1153^rd of 2162 public high schools	46.7%		43.4	1161^st of 2159 public high schools	46.2%	8		22.7	7.7	22.4		48.4	48.4		20.7	20.7	$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%)	8.8	2080^th of 2162 public high schools	3.8%		9.8	2082^nd of 2159 public high schools	3.6%	2		1.4	3.7	1.7		6.1	6.1		0.7	0.7	$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%)	7	2148^th of 2162 public high schools	0.6%		8.2	2151^st of 2159 public high schools	0.4%	3	0.0			0.0	0.0	0.0	0.0	0.0	0.0	0.0
Career Education Center	Public	6-12	465 Horizon Cir.	Camarillo	93010	Ventura County	Ventura County Regional Occupational Program	No	(n/a)	(n/a)	(n/a)	(805) 437-1420	0				0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)

Frequently Asked Questions about Rio Mesa High

Is Rio Mesa High a good school?

Rio Mesa High ranks 1044^th of 2162 California high schools. SchoolDigger rates this school 3 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 »

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

2024–25 CSA Spanish test scoresDec 22, 2025

2024–25 dropout rates & graduation ratesNov 14, 2025

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.