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Centennial High School

Q: Is Centennial High School a good school?

Centennial High School ranks 24 th of 122 Idaho high schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades 9-12

24^th

SchoolDigger Rank ?

of 122 Idaho High Schools

Better than 80% of Idaho high schools

Summary

Centennial High School is a large, comprehensive public high school in Boise, ID, serving 1,743 students in grades 9–12 as part of the Joint School District No. 2 (Meridian/West Ada). The school has consistently earned a 4-star SchoolDigger rating, ranking 24th out of 122 Idaho high schools (80th percentile) in 2025–2026, and posts a graduation rate of 91.7% (2023–2024)—well above the district’s 89.0% and the state’s 82.3%. Centennial serves a broad socioeconomic population, with 30.4% of students eligible for free/reduced lunch in 2024–2025, up from 21.7% a few years earlier.

Academically, Centennial exceeds the state average by 17–20 points in math, science, and English language arts on 2025–2026 End-of-Course ISAT tests, and outperforms its own district in all three subjects. Its ELA proficiency (78.6%) rivals that of Meridian Technical Charter High School (84.6%), despite Centennial serving a far larger and more diverse student body. The school achieves these results efficiently: per-pupil spending is $6,696, roughly 40% less than nearby elite charters like Meridian Medical Arts Charter and Meridian Technical Charter, which spend around $11,000 per student. However, math has historically been Centennial’s weak spot—all-grades math proficiency hovered between 43% and 48.9% from 2022 to 2025, below the district average—though the 2025–2026 End-of-Course math score (51.1%) finally surpassed the district (48.7%). Centennial also far outperforms nearby Capital Senior High School, which ranks in the 25th percentile statewide.

One of Centennial’s most striking success stories is chronic absenteeism, which fell from 23.0% in 2021–2022 to 10.1% in 2025–2026—better than the district (12.7%) and state (13.8%), and dramatically lower than Eagle Academy (46.4%) and Capital Senior High (30.8%). The main challenges going forward are addressing the recent decline in outcomes for low-income students—from the 83rd to the 11th percentile between 2020–2021 and 2023–2024, coinciding with rising poverty rates—and continuing to close the math gap. Overall, Centennial remains a clear anchor of educational quality in northwest Boise, delivering strong outcomes at a relatively low cost.

1,743

Students ?

20.3

Student/teacher ratio ?

$6,696

Per pupil spending ?

30.4%

Free/discounted lunch ?

12400 West McMillan Road
Boise, ID 83713-0529

(208) 855-4250

District: Joint School District No. 2

Feeder schools for Centennial High School:

Elementary:	Frontier Elementary School
	Joplin Elementary School
	McMillan Elementary
	Summerwind Stem Academy
	More...
	Ustick Elementary School
Middle:	Lewis & Clark Middle School
	Lowell Scott Middle School

Racial breakdown:

White:

74.2%

Hispanic:

12.6%

Two or more races:

4.5%

See top rated Idaho high schools

Compare Centennial High School to nearby high schools!

At a glance

▼ Ranking trend: Declining — 93rd percentile in 2015 → 80th in 2026

Strengths

✓Test scores above the Idaho average (63% vs 45% meeting standards)

✓Ranks in the top 20% of Idaho high schools

Worth a look

!Ranking has slipped — down 13 percentile points since 2015

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

!Near the bottom of Joint School District No. 2's ranking

Students meeting standards (2025-2026) ?

This school63%

District avg60%

Idaho avg45%

24^th of 122

Idaho public high schools ?

Top 20%▲ up 9 pts since 2016

From top 29% (2016) to top 20% (2026)

See the entire ranking list of Idaho High Schools →

★★★★★

SchoolDigger rating ?

7^th of 9High Schools in the Joint School District No. 2

12^th of 101Joint School District No. 2 among Idaho 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	Idaho percentile	Rating
2026	81.8	24 of 122	80.3%	★★★★☆
2025	74.9	28 of 112	75.0%	★★★★☆
2024	71.0	38 of 159	76.1%	★★★★☆
2023	83.7	13 of 106	87.7%	★★★★☆
2022	73.1	15 of 110	86.4%	★★★★☆
2021	87.3	7 of 88	92.0%	★★★★★
2018	57.6	21 of 52	59.6%	★★★☆☆
2017	76.2	20 of 101	80.2%	★★★★☆
2016	67.0	22 of 76	71.1%	★★★★☆
2015	88.2	5 of 74	93.2%	★★★★★
2013	62.4	54 of 160	66.3%	★★★☆☆
2012	57.3	72 of 162	55.6%	★★★☆☆
2011	64.1	56 of 165	66.1%	★★★☆☆
2010	55.7	81 of 169	52.1%	★★★☆☆
2009	38.0	81 of 128	36.7%	★★☆☆☆
2008	69.2	42 of 151	72.2%	★★★★☆

Female

Year	Avg score	Statewide rank	Idaho percentile	Rating
2024	72.4	20 of 66	69.7%	★★★★☆
2023	83.3	5 of 40	87.5%	★★★★☆
2022	66.6	8 of 48	83.3%	★★★★☆
2021	88.9	3 of 40	92.5%	★★★★★
2018	61.4	9 of 31	71.0%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	Idaho percentile	Rating
2024	59.0	25 of 55	54.5%	★★★☆☆
2022	63.2	8 of 38	78.9%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Idaho percentile	Rating
2024	30.2	31 of 35	11.4%	★☆☆☆☆
2023	59.8	5 of 13	61.5%	★★★★☆
2021	66.2	3 of 18	83.3%	★★★★☆
2018	45.3	8 of 22	63.6%	★★★★☆

Male

Year	Avg score	Statewide rank	Idaho percentile	Rating
2024	62.0	28 of 66	57.6%	★★★☆☆
2023	79.3	3 of 40	92.5%	★★★★★
2022	70.8	3 of 48	93.8%	★★★★★
2021	86.0	3 of 40	92.5%	★★★★★
2018	54.6	12 of 31	61.3%	★★★☆☆

Special Education

Year	Avg score	Statewide rank	Idaho percentile	Rating
2018	53.4	1 of 3	66.7%	★★★★★

White

Year	Avg score	Statewide rank	Idaho percentile	Rating
2024	73.3	22 of 78	71.8%	★★★★☆
2023	79.9	1 of 14	92.9%	★★★★★
2022	79.6	5 of 50	90.0%	★★★★★
2021	85.5	3 of 29	89.7%	★★★★★
2018	44.8	13 of 23	43.5%	★★★☆☆

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)

White (2024)72nd percentile-4 vs school

Female (2024)70th percentile-6 vs school

Special Education (2018)67th percentile+7 vs school

Male (2024)58th percentile-19 vs school

Hispanic (2024)55th percentile-22 vs school

Low Socio Economic Status (2024)11th percentile-65 vs school

By subject vs Idaho (2025-2026) ?

English Language Arts79%+17 vs state

Science59%+17 vs state

Math51%+18 vs state

4.0

1 rating · 1 written review

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What people are saying

by a student
Thursday, January 10, 2013

I'm from the inside. I know what it's like. That school is one of the most classy, most persevering schools out there. Those who have met the staff, the students, and forgot about the ghetto floors and prison like structure, have always walked away wondering what was so different. And that's just it, one shouldn't be able to articulate exactly what is so different,only that it's the difference that counts against all of the cliche, boastful high schools around. There's a silver lining between boastful and prideful. And Centennial has definitely found it. Close Quote

Schools Near Centennial High School

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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)				ISAT Math (2026)			ISAT Science (2026)			ISAT English Language Arts (2026)				Per Pupil Expenditures (2019)
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 (2025)	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	ISAT Math 7th Grade	ISAT Math 8th Grade	ISAT Math End of Course	ISAT Science 8th Grade	ISAT Science End of Course	ISAT Science All Grades	ISAT English Language Arts 7th Grade	ISAT English Language Arts 8th Grade	ISAT English Language Arts End of Course	ISAT English Language Arts All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Centennial High School	Public	9-12	12400 West McMillan Road	Boise	83713	Ada County	Joint School District No. 2	No	No	(n/a)	No	(208) 855-4250	1,743	86	20.3	30.4%	1,293 (74.2%)	78 (4.5%)	220 (12.6%)	65 (3.7%)	6 (0.3%)	2 (0.1%)	79 (4.5%)	81.8	24^th of 122 public high schools	80.3%		74.9	28^th of 112 public high schools	75.0%	4			51.1		58.6				78.6		$6,696	$634	$6,061
iSUCCEED VIRTUAL HIGH SCHOOL	Public, Charter	7-12	6148 North Discovery Way Suit	Boise	83713	Ada County	Isucceed Virtual High School Inc.	Yes	No	(n/a)	Yes	(208) 375-3116	1,290	54	23.8		1,009 (78.2%)	8 (0.6%)	186 (14.4%)	5 (0.4%)	4 (0.3%)	3 (0.2%)	75 (5.8%)	12.9	113^th of 122 public high schools	7.4%					(n/a)	14.5	6.5		14.4	17.2	16.5	35.5	21.1	41.6	36.7	$6,828	$540	$6,287
iSucceed Academy	Public, Charter	9-12	6148 North Discovery Way Suit	Boise	83713	Ada County	Isucceed Virtual High School Inc.	Yes	No	(n/a)	Yes	(208) 375-3116	345	11	31.2		232 (67.2%)	3 (0.9%)	86 (24.9%)	0 (0.0%)	1 (0.3%)	1 (0.3%)	22 (6.4%)	3.6	122^nd of 122 public high schools	0.0%					(n/a)					11.7				25.0		$838	$00	$838
Idaho Connects Online Alternative School	Public, Charter	6-12	12639 Explorer Drive Suite 1	Boise	83713	Ada County	Idaho Virtual Education Partners Inc.	Yes	No	(n/a)	No	(208) 287-3668	155	16	9.4		111 (71.6%)	1 (0.6%)	32 (20.6%)	3 (1.9%)	1 (0.6%)	0 (0.0%)	7 (4.5%)								(n/a)											$6,971	$00	$6,971
Meridian Medical Arts Charter	Public, Charter	9-12	1789 East Heritage Park Lane	Meridian	83646	Ada County	Joint School District No. 2	Yes	No	(n/a)	No	(208) 855-4075	191	15	12.7	16.2%	139 (72.8%)	2 (1.0%)	32 (16.8%)	9 (4.7%)	0 (0.0%)	1 (0.5%)	8 (4.2%)								(n/a)			58.8								$11,226	$00	$11,226
Meridian Technical Charter High School	Public, Charter	9-12	3800 North Locust Grove Road	Meridian	83646	Ada County	Joint School District No. 2	Yes	No	(n/a)	No	(208) 288-2928	206	14	14.7	15.5%	155 (75.2%)	1 (0.5%)	29 (14.1%)	3 (1.5%)	4 (1.9%)	0 (0.0%)	14 (6.8%)	95	7^th of 122 public high schools	94.3%		98.9	2^nd of 112 public high schools	98.2%	5			64.1		79.5				84.6		$11,232	$00	$11,232
Pathways In Education - West Ada	Public, Charter	9-12	6074 North Discovery Way	Boise	83713	Ada County	Pathways In Education - West Ada	Yes	(n/a)	(n/a)	(n/a)	(986) 269-4522	79	5	14.4		53 (67.1%)	3 (3.8%)	14 (17.7%)	0 (0.0%)	1 (1.3%)	3 (3.8%)	5 (6.3%)	10.2	115^th of 122 public high schools	5.7%					(n/a)					18.4				36.8
Capital Senior High School	Public	9-12	8055 Goddard Road	Boise	83704	Ada County	Boise Independent District	No	No	(n/a)	No	(208) 854-4490	1,170	73	15.9	36.3%	693 (59.2%)	80 (6.8%)	288 (24.6%)	41 (3.5%)	1 (0.1%)	6 (0.5%)	61 (5.2%)	29.4	91^st of 122 public high schools	25.4%		27.1	90^th of 112 public high schools	19.6%	1					36.1				45.1		$11,072	$631	$10,441
North Star High School	Public, Charter	9-12	8900 North Horseshoe Bend Road	Boise	83714	Ada County	North Star Charter School Inc.	Yes	(n/a)	(n/a)	(n/a)	(208) 332-6800	0				0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Eagle Academy	Public	9-12	100 South Academy Avenue	Eagle	83616	Ada County	Joint School District No. 2	No	No	(n/a)	No	(208) 939-5386	160	13	12.3	45.0%	115 (71.9%)	5 (3.1%)	26 (16.3%)	1 (0.6%)	3 (1.9%)	0 (0.0%)	10 (6.3%)								(n/a)									31.4		$9,399	$609	$8,790

Frequently Asked Questions about Centennial High School

How many students attend Centennial High School?

In the 2024-25 school year, 1,743 students attended Centennial High School.

What schools feed into Centennial High School?

Centennial High School is fed by the following schools:

Elementary : Frontier Elementary School
Elementary : Joplin Elementary School
Elementary : McMillan Elementary
Elementary : Summerwind Stem Academy
Elementary : Ustick Elementary School
Middle : Lewis & Clark Middle School
Middle : Lowell Scott Middle School

What is the racial makeup of Centennial High School?

Students at Centennial High School are 74% White, 13% Hispanic, 5% Two or more races, 4% African American, 4% Asian.

What district is Centennial High School in?

Joint School District No. 2

Is Centennial High School a good school?

Centennial High School ranks 24^th of 122 Idaho high schools. SchoolDigger rates this school 4 stars out of 5.

Rate Centennial High School!

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Latest Idaho data All new data »

2025–26 attendance dataAug 19, 2026

2025–26 ISAT test scoresAug 19, 2026

2024–25 attendance data & graduation ratesJan 19, 2026

2024–25 ISAT test scoresAug 26, 2025

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