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Corning Union High

Q: Is Corning Union High a good school?

Corning Union High ranks 1584 th of 2137 California high schools. SchoolDigger rates this school 1 star out of 5.

Public Grades 9-12

1584^th

SchoolDigger Rank ?

of 2,137 California High Schools

Better than 26% of California high schools

Summary

Corning Union High is a grades 9–12 school in Corning, California, with 974 students—the largest enrollment among nine nearby schools with enrollment data. Its latest results show a contrast: graduation is high at 98%, and chronic absenteeism is lower than in its district and statewide, at 14.9% compared with 17.8% and 18.3%. The most important concern is that proficiency remains well below California’s in all three tested subjects, especially math, where 7% of students are proficient compared with 38% statewide.

Corning’s proficiency results are higher than those of the Corning Union High district in ELA, math and science: 35%, 7% and 20%, versus 30%, 6% and 18%. But the school trails the state by 14 points in ELA, 32 in math and 16 in science. It also falls below nearby traditional high schools in all three subjects. The average for Hamilton High, Orland High and Los Molinos High is 52% in ELA, 26% in math and 28% in science—17, 19 and 8 points above Corning. Science is closest to those schools’ average; math is the clearest weakness. Nearby schools include different school types, so not all comparisons are like-for-like.

Over the reported period, Corning’s ELA proficiency fell 3 points and math fell 5, while science rose 5; state results increased in all three subjects, widening the overall gaps. SchoolDigger ranks Corning in the 26th statewide percentile with 1 star for 2025–2026, down from the 41st percentile two years earlier; it ranks fifth among eight nearby schools with a current ranking. SchoolDigger’s student-group rankings also flag lower results: the school ranks in the 6th percentile for how well it serves Special Education Students and the 8th percentile for White Students, compared with the 26th percentile overall. Its 2024–2025 student–teacher ratio was 17.9. In that same school year, 82% of students were free/reduced lunch eligible, a measure that provides context but does not explain the results.

974

Students ?

17.9

Student/teacher ratio ?

$32,946

Per pupil spending ?

82.4%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

643 Blackburn Ave.
Corning, CA 96021-2216

(530) 824-8000

District: Corning Union High

Feeder schools for Corning Union High:

Elementary:	Flournoy Elementary
	Kirkwood Elementary
	Olive View Elementary
	Rancho Tehama Elementary
	More...
	Richfield Elementary
	West Street Elementary
	Woodson Elementary
Middle:	Maywood Middle

Racial breakdown:

Hispanic:

68.7%

White:

24.0%

Two or more races:

3.4%

See top rated California high schools

Compare Corning Union High to nearby high schools!

At a glance

▼ Ranking trend: Declining — 38th percentile in 2016 → 26th in 2026

Strengths

✓98% graduate in 4 years — above the California average (88%)

Worth a look

!Test scores below the California average (20% 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 school20%

District avg18%

California avg42%

1,584^th of 2,137

California public high schools ?

Bottom 26%▼ down 12 pts since 2016

From bottom 38% (2016) to bottom 26% (2026)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

1^st of 3High Schools in the Corning Union High

946^th of 968Corning 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	24.8	1584 of 2137	25.9%	★☆☆☆☆
2025	35.5	1370 of 2162	36.6%	★★☆☆☆
2024	38.8	1275 of 2159	40.9%	★★☆☆☆
2023	32.7	1411 of 2170	35.0%	★★☆☆☆
2022	31.5	1389 of 2123	34.6%	★★☆☆☆
2021	28.4	930 of 1290	27.9%	★☆☆☆☆
2019	40.5	1198 of 2133	43.8%	★★☆☆☆
2018	50.1	1012 of 2017	49.8%	★★☆☆☆
2017	39.6	1248 of 2021	38.2%	★★☆☆☆
2016	35.8	1263 of 2039	38.1%	★★☆☆☆
2015	47.6	1026 of 1994	48.5%	★★☆☆☆
2013	38.8	1084 of 2426	55.3%	★★★☆☆
2012	45.7	888 of 2354	62.3%	★★★☆☆
2011	51.4	759 of 2367	67.9%	★★★☆☆
2010	50.6	745 of 2281	67.3%	★★★☆☆
2009	46.3	844 of 2238	62.3%	★★★☆☆
2008	49.6	683 of 2117	67.7%	★★★☆☆
2007	40.3	867 of 2063	58.0%	★★★☆☆
2006	40.7	822 of 1968	58.2%	★★★☆☆
2005	48.1	629 of 1901	66.9%	★★★☆☆
2004	46.8	556 of 1653	66.4%	★★★☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	40.5	566 of 1161	51.2%	★★★☆☆
2021	57.2	157 of 555	71.7%	★★★★☆
2019	32.9	696 of 1117	37.7%	★★☆☆☆
2018	56.9	317 of 1052	69.9%	★★★★☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	34.6	730 of 1085	32.7%	★★☆☆☆
2023	34.4	703 of 1064	33.9%	★★☆☆☆
2022	36.0	640 of 1044	38.7%	★★☆☆☆
2021	26.2	377 of 467	19.3%	★☆☆☆☆
2019	28.1	866 of 941	8.0%	☆☆☆☆☆
2018	35.0	540 of 938	42.4%	★★☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	21.3	1484 of 1865	20.4%	★☆☆☆☆
2025	42.4	1063 of 1906	44.2%	★★☆☆☆
2024	31.6	1303 of 1915	32.0%	★★☆☆☆
2023	29.7	1325 of 1915	30.8%	★★☆☆☆
2022	31.8	1230 of 1858	33.8%	★★☆☆☆
2021	22.5	848 of 1054	19.5%	★☆☆☆☆
2019	35.5	1164 of 1833	36.5%	★★☆☆☆
2018	43.3	1043 of 1760	40.7%	★★☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	26.9	1396 of 1880	25.7%	★☆☆☆☆
2025	33.7	1290 of 1900	32.1%	★★☆☆☆
2024	38.9	1183 of 1902	37.8%	★★☆☆☆
2023	38.8	1157 of 1917	39.6%	★★☆☆☆
2022	34.2	1220 of 1861	34.4%	★★☆☆☆
2019	38.6	1118 of 1814	38.4%	★★☆☆☆
2018	53.6	825 of 1742	52.6%	★★★☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	25.0	1503 of 1999	24.8%	★☆☆☆☆
2025	38.8	1243 of 2013	38.3%	★★☆☆☆
2024	43.8	1099 of 2026	45.8%	★★☆☆☆
2023	35.1	1296 of 2030	36.2%	★★☆☆☆
2022	38.7	1159 of 1943	40.3%	★★☆☆☆
2021	32.3	807 of 1126	28.3%	★☆☆☆☆
2019	41.6	1135 of 1937	41.4%	★★☆☆☆
2018	49.9	960 of 1862	48.4%	★★☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	24.5	1447 of 1932	25.1%	★☆☆☆☆
2025	25.9	1409 of 1942	27.4%	★☆☆☆☆
2024	40.7	1089 of 1948	44.1%	★★☆☆☆
2023	32.5	1279 of 1963	34.8%	★★☆☆☆
2022	27.3	1348 of 1916	29.6%	★☆☆☆☆
2021	28.6	818 of 1122	27.1%	★☆☆☆☆
2019	39.0	1099 of 1880	41.5%	★★☆☆☆
2018	50.6	904 of 1834	50.7%	★★★☆☆

Migrant

Year	Avg score	Statewide rank	California percentile	Rating
2024	20.2	73 of 85	14.1%	★☆☆☆☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2024	30.2	415 of 574	27.7%	★☆☆☆☆
2022	3.5	508 of 515	1.4%	☆☆☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	16.1	1163 of 1235	5.8%	☆☆☆☆☆
2025	20.3	1119 of 1252	10.6%	★☆☆☆☆
2024	16.3	1164 of 1216	4.3%	☆☆☆☆☆
2023	20.7	1095 of 1197	8.5%	☆☆☆☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2026	8.2	1036 of 1132	8.5%	☆☆☆☆☆
2025	34.3	792 of 1155	31.4%	★★☆☆☆
2024	24.6	908 of 1173	22.6%	★☆☆☆☆
2023	15.2	1018 of 1193	14.7%	★☆☆☆☆
2022	25.2	911 of 1204	24.3%	★☆☆☆☆
2019	28.6	896 of 1222	26.7%	★☆☆☆☆
2018	31.8	837 of 1173	28.6%	★☆☆☆☆

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)

Disabled (2022)51st percentile+17 vs school

English Language Learner (2024)33rd percentile-8 vs school

Multi-racial (2024)28th percentile-13 vs school

Hispanic (2026)26th percentile~ school

Male (2026)25th percentile~ school

Low Socio Economic Status (2026)25th percentile~ school

Female (2026)20th percentile-5 vs school

Migrant (2024)14th percentile-27 vs school

White (2026)8th percentile-17 vs school

Special Education (2026)6th percentile-20 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy35%-14 vs state

Science20%-16 vs state

Mathematics7%-32 vs state

★

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Schools Near Corning Union 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 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	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
Corning Union High	Public	9-12	643 Blackburn Ave.	Corning	96021	Tehama County	Corning Union High	No	(n/a)	No	(n/a)	(530) 824-8000	974	54	17.9	82.4%	234 (24.0%)	8 (0.8%)	669 (68.7%)	21 (2.2%)	6 (0.6%)	2 (0.2%)	33 (3.4%)	24.8	1584^th of 2137 public high schools	25.9%		35.5	1370^th of 2162 public high schools	36.6%	214	19.8		19.7	35.1	35.1	6.7	6.7	$32,946	$30,120	$2,826
Corning Independent Study	Public	9-12	250 East Fig Ln.	Corning	96021	Tehama County	Corning Union High	No	(n/a)	No	(n/a)	(530) 824-7400	29	1	20.1	69.0%	8 (27.6%)	0 (0.0%)	19 (65.5%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2 (6.9%)	6	2136^th of 2137 public high schools	0.0%					(n/a)	0.0		0.0	0.0	0.0	0.0	0.0	$32,195	$30,120	$2,075
Centennial Continuation High	Public	9-12	250 East Fig Ln.	Corning	96021	Tehama County	Corning Union High	No	(n/a)	No	(n/a)	(530) 824-7400	67	5	13.2	83.6%	19 (28.4%)	0 (0.0%)	43 (64.2%)	1 (1.5%)	2 (3.0%)	0 (0.0%)	1 (1.5%)	6.1	2134^th of 2137 public high schools	0.1%		9.3	2048^th of 2162 public high schools	5.3%	86	0.0		7.7	0.0	0.0	0.0	0.0	$32,195	$30,120	$2,075
Los Molinos High	Public	9-12	7900 Sherwood Blvd.	Los Molinos	96055	Tehama County	Los Molinos Unified	No	(n/a)	No	(n/a)	(530) 384-7900	203	12	16.4	57.6%	98 (48.3%)	0 (0.0%)	86 (42.4%)	5 (2.5%)	1 (0.5%)	0 (0.0%)	13 (6.4%)	71	600^th of 2137 public high schools	71.9%		68.1	633^rd of 2162 public high schools	70.7%	33	39.0		38.1	61.9	61.9	40.5	40.5	$33,799	$32,756	$1,043
North Valley High (Continuation)	Public	9-12	220 Roosevelt Ave.	Orland	95963	Glenn County	Orland Joint Unified	No	(n/a)	No	(n/a)	(530) 865-1285	38	4	10.3	92.1%	6 (15.8%)	0 (0.0%)	31 (81.6%)	1 (2.6%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	16.8	1712^th of 2137 public high schools	19.9%		7	2148^th of 2162 public high schools	0.6%	436				12.5	12.5	12.5	12.5	$30,498	$29,902	$596
Orland Community Day	Public	7-12	260 Roosevelt Ave.	Orland	95963	Glenn County	Orland Joint Unified	No	(n/a)	No	(n/a)	(530) 865-1264	0			—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Orland High	Public	9-12	101 Shasta St.	Orland	95963	Glenn County	Orland Joint Unified	No	(n/a)	No	(n/a)	(530) 865-1210	725	40	18.3	78.1%	242 (33.4%)	1 (0.1%)	455 (62.8%)	9 (1.2%)	8 (1.1%)	2 (0.3%)	8 (1.1%)	35.7	1360^th of 2137 public high schools	36.4%		39.9	1261^st of 2162 public high schools	41.7%	99	23.8		23.9	44.3	44.3	14.4	14.4	$24,061	$22,718	$1,343
Success One!	Public, Virtual, Charter	9-12	129 E. Walker St.	Orland	95963	Glenn County	Glenn County Office of Education	Yes	(n/a)	Yes	(n/a)	(530) 936-6980	105	3	31.7	47.6%	23 (21.9%)	0 (0.0%)	75 (71.4%)	1 (1.0%)	1 (1.0%)	0 (0.0%)	3 (2.9%)	12.4	1829^th of 2137 public high schools	14.4%					(n/a)		8.3	8.3	12.5	12.5	0.0	0.0	$25,860	$25,860	$00
Hamilton High	Public	9-12	620 Canal St.	Hamilton City	95951	Glenn County	Hamilton Unified	No	(n/a)	No	(n/a)	(530) 826-3261	306	19	15.7	68.3%	41 (13.4%)	0 (0.0%)	215 (70.3%)	2 (0.7%)	2 (0.7%)	0 (0.0%)	46 (15.0%)	42.7	1202^nd of 2137 public high schools	43.8%		43.3	1182^nd of 2162 public high schools	45.3%	20	22.0		22.0	50.0	50.0	22.4	22.4	$23,537	$23,424	$113
Ella Barkley High	Public	10-12	300 Sixth St.	Hamilton City	95951	Glenn County	Hamilton Unified	No	(n/a)	No	(n/a)	(530) 826-3331	9	1	7.5	66.7%	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)								$66,871	$66,868	$03

Frequently Asked Questions about Corning Union High

What district is Corning Union High in?

Corning Union High

What schools feed into Corning Union High?

Corning Union High is fed by the following schools:

Elementary : Flournoy Elementary
Elementary : Kirkwood Elementary
Elementary : Olive View Elementary
Elementary : Rancho Tehama Elementary
Elementary : Richfield Elementary
Elementary : West Street Elementary
Elementary : Woodson Elementary
Middle : Maywood Middle

What is the racial makeup of Corning Union High?

Students at Corning Union High are 69% Hispanic, 24% White, 3% Two or more races, 2% Asian.

Is Corning Union High a good school?

Corning Union High ranks 1584^th of 2137 California high schools. SchoolDigger rates this school 1 star out of 5.

How many students attend Corning Union High?

In the 2024-25 school year, 974 students attended Corning Union High.

Rate Corning Union 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.