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Sierra Avenue Elementary

Public Grades K-5

5090^th

SchoolDigger Rank ?

of 5,817 California Elementary Schools

Better than 12% of California elementary schools

Summary

Sierra Avenue Elementary serves 365 students in grades K–5 in Oroville, in the Thermalito Union Elementary District. Its results are below district and state levels in English language arts (ELA), math, and science, but math is the clearest concern: 16% of students were proficient, compared with 27% districtwide and 38% statewide.

Math is also Sierra’s weakest subject compared with nearby schools: its 16% proficiency rate was about 10 points below the five-school average, and below every nearby K–5 school with current results. ELA proficiency was 25%, versus 34% in the district and 49% statewide; science was a relative bright spot at 24%, though still below the district’s 30% and state’s 36%. Fifth-grade ELA is a relative strength within the school: 33% were proficient, with a smaller gap to the state than in grades three or four. By contrast, Sierra’s 17% grade-five math result was below all five nearby schools with comparable results.

Results have changed unevenly over four years: from 2022–2023 to 2025–2026, math proficiency fell by 4 points, ELA rose by 1 point, and science rose by 8 points. Sierra’s state math gap widened from 14 to 22 points, while its science gap narrowed from 15 to 12 points. SchoolDigger ranks Sierra at the 13th percentile statewide, with 1 star, down from the 23rd percentile in 2021–2022; the district is at the 29th percentile, with 1 star. Sierra reported 90% free/reduced lunch eligible in 2024–2025, and its student–teacher ratio was 21.4 that year. Chronic absenteeism improved from 48% in 2021–2022 to 24% in 2025–2026, but remains above the district’s 15% and the state’s 18%. SchoolDigger’s statewide effectiveness ranking for Special Education Students was at the 60th percentile in 2025–2026, compared with Sierra’s overall 13th percentile; its latest English Language Learner Students ranking was at the 62nd percentile in 2023–2024, compared with the school’s overall 15th percentile that year.

365

Students ?

21.4

Student/teacher ratio ?

$27,262

Per pupil spending ?

90.4%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

≥ 98%

Kindergartners with all required immunizations (2024-25)

1050 Sierra Ave.
Oroville, CA 95965-4238

(530) 538-2920

District: Thermalito Union Elementary

Students who attend Sierra Avenue Elementary usually attend:

Middle:	Nelson Avenue Middle
High:	Oroville High

Racial breakdown:

White:

38.4%

Asian:

23.3%

Hispanic:

20.8%

See top rated California elementary schools

Compare Sierra Avenue Elementary to nearby elementary schools!

At a glance

▼ Ranking trend: Declining — 35th percentile in 2016 → 12th in 2026

Worth a look

!Test scores below the California average (21% vs 42% meeting standards)

!In the lower quartile statewide (12th percentile)

!Ranking has slipped — down 23 percentile points since 2016

Students meeting standards (2025-2026) ?

This school21%

District avg31%

California avg42%

5,090^th of 5,817

California public elementary schools ?

Bottom 12%▼ down 22 pts since 2016

From bottom 35% (2016) to bottom 12% (2026)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

3^rd of 3Elementary Schools in the Thermalito Union Elementary

1059^th of 1,530Thermalito Union Elementary 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	16.7	5090 of 5817	12.5%	★☆☆☆☆
2025	18.8	4931 of 5857	15.8%	★☆☆☆☆
2024	18.7	4965 of 5869	15.4%	★☆☆☆☆
2023	20.0	4849 of 5859	17.2%	★☆☆☆☆
2022	23.4	4512 of 5883	23.3%	★☆☆☆☆
2021	17.8	1210 of 1417	14.6%	★☆☆☆☆
2019	19.4	4859 of 5789	16.1%	★☆☆☆☆
2018	27.6	4024 of 5662	28.9%	★☆☆☆☆
2017	30.6	3788 of 5692	33.5%	★★☆☆☆
2016	31.3	3663 of 5614	34.8%	★★☆☆☆
2015	20.1	4617 of 5611	17.7%	★☆☆☆☆
2013	31.6	3925 of 5530	29.0%	★☆☆☆☆
2012	38.4	3359 of 5390	37.7%	★★☆☆☆
2011	44.0	2953 of 5377	45.1%	★★☆☆☆
2010	40.5	3142 of 5314	40.9%	★★☆☆☆
2009	27.0	3909 of 5193	24.7%	★☆☆☆☆
2008	33.4	3370 of 5113	34.1%	★★☆☆☆
2007	44.6	2643 of 5113	48.3%	★★☆☆☆
2006	32.8	3121 of 4818	35.2%	★★☆☆☆
2005	30.3	3256 of 4822	32.5%	★★☆☆☆
2004	22.9	3717 of 4809	22.7%	★☆☆☆☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2026	2.2	1174 of 1210	3.0%	☆☆☆☆☆
2025	4.5	1141 of 1203	5.2%	☆☆☆☆☆
2024	2.1	1162 of 1205	3.6%	☆☆☆☆☆
2023	1.5	1161 of 1190	2.4%	☆☆☆☆☆
2022	1.8	1125 of 1154	2.5%	☆☆☆☆☆
2019	2.1	1114 of 1149	3.0%	☆☆☆☆☆
2018	3.8	1030 of 1071	3.8%	☆☆☆☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2019	19.5	2376 of 2585	8.1%	☆☆☆☆☆
2018	25.0	1702 of 2128	20.0%	★☆☆☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	49.4	1211 of 3162	61.7%	★★★☆☆
2023	37.8	1957 of 3245	39.7%	★★☆☆☆
2022	31.0	2524 of 3311	23.8%	★☆☆☆☆
2021	18.6	599 of 602	0.5%	☆☆☆☆☆
2018	53.2	1113 of 3246	65.7%	★★★☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	16.2	4964 of 5581	11.1%	★☆☆☆☆
2025	23.1	4426 of 5597	20.9%	★☆☆☆☆
2024	18.5	4838 of 5612	13.8%	★☆☆☆☆
2023	22.9	4430 of 5609	21.0%	★☆☆☆☆
2022	25.9	4131 of 5635	26.7%	★☆☆☆☆
2021	20.6	1038 of 1267	18.1%	★☆☆☆☆
2019	20.7	4556 of 5492	17.0%	★☆☆☆☆
2018	28.4	3884 of 5413	28.2%	★☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	17.0	4619 of 5094	9.3%	☆☆☆☆☆
2025	10.5	4960 of 5107	2.9%	☆☆☆☆☆
2024	19.2	4516 of 5107	11.6%	★☆☆☆☆
2019	29.3	3740 of 4963	24.6%	★☆☆☆☆
2018	30.1	3548 of 4830	26.5%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	20.9	4625 of 5423	14.7%	★☆☆☆☆
2025	22.7	4537 of 5460	16.9%	★☆☆☆☆
2024	25.1	4373 of 5517	20.7%	★☆☆☆☆
2023	27.0	4157 of 5363	22.5%	★☆☆☆☆
2022	32.5	3625 of 5264	31.1%	★★☆☆☆
2021	31.6	791 of 1110	28.7%	★☆☆☆☆
2019	25.2	4210 of 5173	18.6%	★☆☆☆☆
2018	32.8	3569 of 5084	29.8%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	19.4	4757 of 5603	15.1%	★☆☆☆☆
2025	17.4	4931 of 5628	12.4%	★☆☆☆☆
2024	20.5	4664 of 5643	17.3%	★☆☆☆☆
2023	18.2	4880 of 5638	13.4%	★☆☆☆☆
2022	22.9	4441 of 5663	21.6%	★☆☆☆☆
2021	17.3	1098 of 1272	13.7%	★☆☆☆☆
2019	20.5	4625 of 5510	16.1%	★☆☆☆☆
2018	28.3	3841 of 5431	29.3%	★☆☆☆☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2026	2.9	740 of 753	1.7%	☆☆☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	47.8	1170 of 2927	60.0%	★★★☆☆
2025	28.9	2060 of 2847	27.6%	★☆☆☆☆
2024	27.3	1980 of 2635	24.9%	★☆☆☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2026	10.9	2335 of 2536	7.9%	☆☆☆☆☆
2025	9.5	2414 of 2598	7.1%	☆☆☆☆☆
2024	6.2	2552 of 2651	3.7%	☆☆☆☆☆
2023	5.5	2571 of 2661	3.4%	☆☆☆☆☆
2022	8.2	2567 of 2726	5.8%	☆☆☆☆☆
2019	3.8	2778 of 2834	2.0%	☆☆☆☆☆
2018	6.4	2639 of 2737	3.6%	☆☆☆☆☆

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)

English Language Learner (2024)62nd percentile+46 vs school

Special Education (2026)60th percentile+48 vs school

Male (2026)15th percentile+3 vs school

Low Socio Economic Status (2026)15th percentile~ school

Female (2026)11th percentile~ school

Hispanic (2026)9th percentile-3 vs school

Disabled (2019)8th percentile-8 vs school

White (2026)8th percentile-5 vs school

Asian (2026)3rd percentile-10 vs school

Multi-racial (2026)2nd percentile-11 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy25%-25 vs state

Science24%-12 vs state

Mathematics16%-22 vs state

★

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Schools Near Sierra Avenue Elementary

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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 Vaccination 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)							Vaccination (2024-25)		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 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 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 All Grades	Vaccination: Kindergartners with all required immunizations	Vaccination: Exemption rate	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Sierra Avenue Elementary	Public	K-5	1050 Sierra Ave.	Oroville	95965	Butte County	Thermalito Union Elementary	No	(n/a)	No	(n/a)	(530) 538-2920	365	17	21.4	90.4%	140 (38.4%)	7 (1.9%)	76 (20.8%)	85 (23.3%)	8 (2.2%)	2 (0.5%)	47 (12.9%)	16.7	5090^th of 5817 public elementary schools	12.5%		18.8	4931^st of 5857 public elementary schools	15.8%	159	23.8		23.8	16.4	23.7	33.3				24.6	18.0	13.6	17.5				16.4	≥ 98%		$27,262	$26,328	$934
Plumas Avenue Elementary	Public	K-5	440 Plumas Ave.	Oroville	95965	Butte County	Thermalito Union Elementary	No	(n/a)	No	(n/a)	(530) 538-2930	322	13	24.7	87.0%	119 (37.0%)	8 (2.5%)	59 (18.3%)	99 (30.7%)	5 (1.6%)	4 (1.2%)	28 (8.7%)	44.4	2962^nd of 5817 public elementary schools	49.1%		38.6	3306^th of 5857 public elementary schools	43.6%	344	38.9		38.9	34.0	37.0	59.3				43.9	29.8	40.7	27.8				32.9	95%	0%	$22,583	$21,566	$1,017
Siskiyou Avenue Elementary	Public	K	2075 Poplar St.	Oroville	95965	Butte County	Thermalito Union Elementary	No	(n/a)	No	(n/a)	(530) 538-2910	46	3	15.3	93.5%	20 (43.5%)	1 (2.2%)	11 (23.9%)	9 (19.6%)	1 (2.2%)	0 (0.0%)	4 (8.7%)								(n/a)																		91%	0%	$21,032	$17,158	$3,874
Poplar Avenue Elementary	Public	K-5	2075 Poplar St.	Oroville	95965	Butte County	Thermalito Union Elementary	No	(n/a)	No	(n/a)	(530) 538-2910	321	15	21.3	84.4%	88 (27.4%)	3 (0.9%)	41 (12.8%)	160 (49.8%)	3 (0.9%)	1 (0.3%)	25 (7.8%)	31.4	3878^th of 5817 public elementary schools	33.3%		29	4041^st of 5857 public elementary schools	31.0%	163	23.2		23.2	38.2	29.6	30.4				32.9	45.5	34.1	19.6				32.9	≥ 95%		$20,742	$19,886	$856
Heritage Community Day	Public	K-8	2045 4th St.	Oroville	95965	Butte County	Thermalito Union Elementary	No	(n/a)	No	(n/a)	(530) 532-4376	5	1	4.9	—	4 (80.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (20.0%)								(n/a)										0.0							7.1
STREAM Charter	Public, Charter	K-8	455E Oro Dam Blvd. East	Oroville	95965	Butte County	STREAM Charter District	Yes	(n/a)	No	(n/a)	(530) 534-1633	515	22	23.3	58.4%	285 (55.3%)	5 (1.0%)	81 (15.7%)	56 (10.9%)	12 (2.3%)	1 (0.2%)	75 (14.6%)	53.2	2426^th of 5817 public elementary schools	58.3%		48.7	2661^st of 5857 public elementary schools	54.6%	235	29.8	27.8	29.0	47.5	50.0	52.6	48.2	50.0	37.1	48.2	50.9	46.6	33.3	28.6	32.6	20.0	36.7	96%	0%
Wyandotte Academy	Public	K-5	2800 Wyandotte Ave.	Oroville	95966	Butte County	Oroville City Elementary	No	(n/a)	No	(n/a)	(530) 532-3007	249	15	16.6	82.3%	73 (29.3%)	17 (6.8%)	51 (20.5%)	70 (28.1%)	1 (0.4%)	0 (0.0%)	37 (14.9%)	26.4	4275^th of 5817 public elementary schools	26.5%		28	4137^th of 5857 public elementary schools	29.4%	138	25.0		25.0	35.1	25.0	36.1				31.9	37.8	17.5	22.9				25.9	95%	0%	$23,805	$21,346	$2,459
Stanford Avenue Elementary	Public	K-5	1801 Stanford Ave.	Oroville	95966	Butte County	Oroville City Elementary	No	(n/a)	No	(n/a)	(530) 532-3006	403	19	21.2	81.4%	217 (53.8%)	10 (2.5%)	69 (17.1%)	6 (1.5%)	12 (3.0%)	1 (0.2%)	86 (21.3%)	18.9	4910^th of 5817 public elementary schools	15.6%		20.7	4769^th of 5857 public elementary schools	18.6%	141	21.2		21.2	26.8	24.3	30.3				27.1	32.1	10.0	18.2				19.3	94%	0%	$20,574	$19,312	$1,262
Oakdale Heights Elementary	Public	K-5	2255 Las Plumas Ave.	Oroville	95966	Butte County	Oroville City Elementary	No	(n/a)	No	(n/a)	(530) 532-3004	252	14	18.0	79.0%	89 (35.3%)	11 (4.4%)	70 (27.8%)	39 (15.5%)	5 (2.0%)	0 (0.0%)	38 (15.1%)	19.3	4879^th of 5817 public elementary schools	16.1%		12.6	5452^nd of 5857 public elementary schools	6.9%	573	25.5		25.5	8.8	28.6	25.5				22.0	5.9	26.2	23.4				19.5	89%	0%	$29,449	$27,974	$1,475
North State Virtual Academy	Public	K-8	2255 Las Plumas Ave.	Oroville	95966	Butte County	Oroville City Elementary	No	(n/a)	(n/a)	(n/a)	(530) 532-3004	0			—															(n/a)		9.1	14.3					28.6	9.1	18.2					30.8	18.2	20.9

Frequently Asked Questions about Sierra Avenue Elementary

Is Sierra Avenue Elementary a good school?

Sierra Avenue Elementary ranks in the bottom 12.5% of California elementary schools.

What is the racial makeup of Sierra Avenue Elementary?

Students at Sierra Avenue Elementary are 38% White, 23% Asian, 21% Hispanic, 13% Two or more races, 2% American Indian, 2% African American.

How many students attend Sierra Avenue Elementary?

In the 2024-25 school year, 365 students attended Sierra Avenue Elementary.

What district is Sierra Avenue Elementary in?

Thermalito Union Elementary

What schools do graduates of Sierra Avenue Elementary attend?

Students who attend Sierra Avenue Elementary usually go on to attend:

Middle : Nelson Avenue Middle
High : Oroville High

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Latest California data All new data »

2013–14 through 2024–25 immunization rates (updated)NewOct 19, 2026

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

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.