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Sage International School Middleton

Q: Is Sage International School Middleton a good school?

Sage International School Middleton ranks 237 th of 350 Idaho alternative schools. SchoolDigger rates this school 2 stars out of 5.

Q: How many students attend Sage International School Middleton?

In the 2024-25 school year, 482 students attended Sage International School Middleton.

Q: What is the racial makeup of Sage International School Middleton?

Students at Sage International School Middleton are 72% White, 21% Hispanic, 4% Two or more races, 1% Asian.

Public, Charter, Alternative Grades K-12

237^th

SchoolDigger Rank ?

of 350 Idaho Alternative Schools

Better than 32% of Idaho alternative schools

Summary

Sage International School Middleton is a small public charter school in the Boise, ID area serving 482 students in grades K‑11 (with no 12th grade), operating under its own district, Sage International School Middleton LLC. Academically, the school presents a mixed picture: science proficiency (47.5%) edges past the state average (42.7%), while math (39.8% vs. 43.1%) and English Language Arts (43.4% vs. 54.0%) trail the state.

Perhaps the most striking comparison is with Sage International School Of Boise, a namesake school located just 0.03 miles away that outperforms Sage Middleton by 18 points in math, 14 points in science, and 22 points in ELA. Sage Middleton also sits well behind high‑performing charters like Compass Public Charter School and the Gem Prep: Meridian schools, which post 70–80% proficiency rates. Instead, its scores more closely resemble Project Impact Stem Academy and virtual schools like Idaho Virtual Academy and Inspire Virtual Charter School, placing it in the lower half of the local charter spectrum.

The school’s free/reduced lunch eligibility jumped from roughly 19% to 36% in a single year, signaling a significant shift in its student population. Grade‑level performance is also uneven — 6th‑grade ELA is a clear trouble spot at just 28.8% proficiency, while 8th‑grade science shines at 54.8%. Despite a favorable 16:1 student‑teacher ratio, Sage Middleton’s math scores have declined steadily over three years, and science has swung sharply between 55.9%, 35.5%, and 47.5%. With a changing student body, inconsistent results, and a much stronger school of the same name next door, this is a charter worth watching closely.

482

Students ?

16.0

Student/teacher ratio ?

36.3%

Free/reduced lunch eligible (2024-25) ?

1513 Tyrell Lane #110
Boise, ID 83644

(208) 244-0577

District: Sage International School Middleton LLC

Racial breakdown:

White:

72.0%

Hispanic:

21.4%

Two or more races:

3.7%

See top rated Idaho elementary schools

Compare Sage International School Middleton to nearby alternative schools!

At a glance

▬ Ranking trend: Holding steady — 50th percentile in 2024 → 51st in 2026

Worth a look

!English Language Arts scores 11 pts below the Idaho average

Students meeting standards (2025-2026) ?

This school44%

District avg44%

Idaho avg47%

Elementary school

237^th of 350

Idaho public elementary schools ?

Bottom 32%▼ down 17 pts since 2024

From top 50% (2024) to bottom 32% (2026)

See the entire ranking list of Idaho Elementary Schools →

★★★★★

SchoolDigger rating ?

Middle school

87^th of 177

Idaho public middle schools ?

Top 49%▲ up 1 pts since 2024

See the entire ranking list of Idaho Middle Schools →

★★★★★

SchoolDigger rating ?

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Elementary school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Idaho percentile	Rating
2026	33.3	237 of 350	32.3%	★★☆☆☆
2025	42.4	198 of 337	41.2%	★★☆☆☆
2024	49.5	152 of 301	49.5%	★★☆☆☆

White

Year	Avg score	Statewide rank	Idaho percentile	Rating
2024	42.0	79 of 135	41.5%	★★☆☆☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Idaho percentile	Rating
2026	45.6	87 of 177	50.8%	★★★☆☆
2025	50.5	71 of 166	57.2%	★★★☆☆
2024	40.7	83 of 164	49.4%	★★★☆☆

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)

Elementary school

White (2024)41st percentile-8 vs school

By subject vs Idaho (2025-2026) ?

Science48%+5 vs state

English Language Arts43%-11 vs state

Math40%-3 vs state

1.0

1 rating · 1 written review

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What people are saying

by a parent
Monday, January 11, 2021

Disorganized. Teacher is allowed to bully parents and students, and principal refuses to do anything about it. When he was confronted about this problem teacher he said that he did not like my “ snide “ comments. My son is a special needs student, and his teachers all expect top results from him, and ignore his IEP. I get emails often about work, when they need to take in account his IEP. Also, this school lacks communication.
Many parents have removed their children from this school, with the same concerns. Close Quote

Schools Near Sage International School Middleton

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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 ()				Ranking ()				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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score ()	Statewide Rank ()	State Percentile ()	SchoolDigger Rating ()	Average Standard Score ()	Statewide Rank ()	State Percentile ()	Rank Change from Previous Year	ISAT Math 3rd Grade	ISAT Math 4th Grade	ISAT Math 5th Grade	ISAT Math 6th Grade	ISAT Math 7th Grade	ISAT Math 8th Grade	ISAT Math End of Course	ISAT Math All Grades	ISAT Science 5th Grade	ISAT Science 8th Grade	ISAT Science End of Course	ISAT Science All Grades	ISAT English Language Arts 3rd Grade	ISAT English Language Arts 4th Grade	ISAT English Language Arts 5th Grade	ISAT English Language Arts 6th Grade	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
Sage International School Middleton	Public, Charter, Alternative	K-12	1513 Tyrell Lane #110	Boise	83644	Canyon County	Sage International School Middleton LLC	Yes	No	(n/a)	Yes	(208) 244-0577	482	30	16.0	36.3%	347 (72.0%)	3 (0.6%)	103 (21.4%)	6 (1.2%)	4 (0.8%)	1 (0.2%)	18 (3.7%)								(n/a)	38.0	58.8	36.0	< 21%	47.6	47.6		39.8	< 43%	54.8		47.5	< 32%	52.9	44.0	28.8	54.8	50.0		43.4
Thomas Jefferson Charter	Public, Charter, Alternative	K-12	1209 Adam Smith Ave	Caldwell	83605	Canyon County	Thomas Jefferson Charter School Inc.	Yes	No	(n/a)	Yes	(208) 455-8772	364	24	15.4	36.5%	231 (63.5%)	7 (1.9%)	116 (31.9%)	1 (0.3%)	1 (0.3%)	1 (0.3%)	7 (1.9%)								(n/a)	57.1	71.0	≥ 80%	81.3	58.6	67.7		71.4	69.0	74.2	61.1	69.2	50.0	71.0	≥ 80%	84.4	82.8	74.2		78.4
Southwest Idaho Juvenile Detention	Public, Alternative	1-12	222 12th Ave N	Caldwell	83605	Canyon County	Caldwell District	No	No	(n/a)	No	(208) 454-7240	37	1	37.0	—	20 (54.1%)	0 (0.0%)	16 (43.2%)	0 (0.0%)	1 (2.7%)	0 (0.0%)	0 (0.0%)								(n/a)
Vision Charter School	Public, Charter, Alternative	K-12	19291 Ward Road	Caldwell	83605	Canyon County	Vision Charter School Inc.	Yes	No	(n/a)	Yes	(208) 455-9220	760	34	22.6	31.1%	548 (72.1%)	1 (0.1%)	163 (21.4%)	11 (1.4%)	2 (0.3%)	0 (0.0%)	35 (4.6%)								(n/a)	66.1	69.1	74.6	40.3	52.2	58.3	58.8	59.9	55.2	51.7	55.1	54.0	71.2	69.1	77.6	53.7	68.7	81.7	88.5	72.3	$6,555	$605	$5,951
Wilder Academy Of Virtual Education	Public, Alternative	K-12	16231 North Brinson Street Suite 140	Wilder	83676	Canyon County	Wilder District	No	(n/a)	(n/a)	(n/a)	(208) 337-7400	202	12	16.8	—	143 (70.8%)	1 (0.5%)	47 (23.3%)	4 (2.0%)	0 (0.0%)	0 (0.0%)	7 (3.5%)								(n/a)		50.0			< 27%		< 18%	17.1			< 27%	22.9					< 31%	35.0	45.2	37.5
Gem Prep: Meridian North	Public, Charter, Alternative	K-12	5390 North McDermott Road	Meridian	83823	Ada County	Gem Prep: Meridian North LLC	Yes	No	(n/a)	Yes	(208) 917-9150	474	23	20.6	—	359 (75.7%)	5 (1.1%)	81 (17.1%)	6 (1.3%)	2 (0.4%)	0 (0.0%)	21 (4.4%)								(n/a)	72.3	74.4	78.7	68.1	56.5	≥ 50%		66.3	68.8	≥ 58%			≥ 46%	79.1	76.6	72.3	82.2	73.5		73.4
Idaho Arts Charter School	Public, Charter, Alternative	PK, KG-12	1220 5th Street North	Nampa	83687	Canyon County	Idaho Arts Charter School Inc.	Yes	No	(n/a)	Yes	(208) 463-4324	1,395	72	19.3	47.9%	882 (63.2%)	12 (0.9%)	414 (29.7%)	9 (0.6%)	3 (0.2%)	9 (0.6%)	66 (4.7%)								(n/a)	57.6	42.0	51.2	28.0	43.2	41.5	46.9	44.3	50.4	38.5	73.2	51.9	62.7	47.9	70.2	47.9	61.0	49.6	80.5	59.0
Nampa Online Virtual Academy	Public, Alternative	PK, KG-12	3313 Parkridge Drive	Nampa	83687	Canyon County	Nampa School District	No	No	(n/a)	No	(208) 468-2808	298	17	17.1	—	157 (52.7%)	0 (0.0%)	119 (39.9%)	1 (0.3%)	0 (0.0%)	4 (1.3%)	17 (5.7%)								(n/a)			< 25%	< 20%	< 24%	< 21%	< 30%	11.8	< 27%	19.5	< 38%	< 22%			< 25%	19.4	28.0	34.2	< 53%	26.6
Gem Prep: Nampa	Public, Charter, Alternative	K-12	310 West Iowa Avenue	Nampa	83823	Canyon County	Gem Prep: Nampa LLC	Yes	No	(n/a)	Yes	(208) 468-2848	529	23	23.0	62.8%	283 (53.5%)	3 (0.6%)	203 (38.4%)	10 (1.9%)	3 (0.6%)	3 (0.6%)	24 (4.5%)								(n/a)	70.2	47.9	58.3	52.4	42.6	38.6	36.8	50.8	56.3	63.6	35.3	56.0	57.4	< 50%	60.4	62.8	63.8	81.8		63.4
Compass Public Charter School	Public, Charter, Alternative	K-12	4667 West Aviator Street	Meridian	83642	Ada County	Compass Public Charter School Inc.	Yes	No	(n/a)	Yes	(208) 888-5847	1,265	68	18.6	24.6%	989 (78.2%)	14 (1.1%)	149 (11.8%)	43 (3.4%)	2 (0.2%)	3 (0.2%)	65 (5.1%)								(n/a)	73.6	81.1	72.5	73.7	71.7	67.8	78.2	73.7	65.7	73.0	80.0	71.6	75.2	78.4	76.1	85.1	83.3	83.5	87.3	80.9	$5,937	$683	$5,254

Frequently Asked Questions about Sage International School Middleton

How many students attend Sage International School Middleton?

In the 2024-25 school year, 482 students attended Sage International School Middleton.

What district is Sage International School Middleton in?

Sage International School Middleton LLC

Is Sage International School Middleton a good school?

Sage International School Middleton ranks 237^th of 350 Idaho alternative schools. SchoolDigger rates this school 2 stars out of 5.

What is the racial makeup of Sage International School Middleton?

Students at Sage International School Middleton are 72% White, 21% Hispanic, 4% Two or more races, 1% Asian.

Rate Sage International School Middleton!

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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.