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Best Schools in Boise, ID — 2026 Rankings

Comprehensive 2026 guide to the best schools in Boise, Idaho. 101 schools ranked by academics, growth, equity, and environment. Top school: Silver Sage Eleme...

By MySchoolScout Team ·

Boise is Idaho’s largest city and the anchor of the Treasure Valley’s public school system. With 101 schools serving 39,211 students, the city offers a mix of traditional neighborhood schools, charter programs, and STEM-focused academies. The citywide average composite score is 5.9 out of 10, with the top-performing school reaching 8.7 — both figures that place Boise above many similarly sized Western cities.

What stands out about Boise’s school landscape is the dominance of its elementary programs. Eight of the top 10 schools are elementary schools, and the city’s 66 elementary campuses form the backbone of the system. The 9 charter schools in Boise provide additional choice, particularly for families seeking specialized curricula like the International Baccalaureate program at Sage International. The average student-teacher ratio across all schools is 14.8:1, a manageable number that reflects Idaho’s effort to keep class sizes reasonable despite tight state education budgets.

Neighborhood Breakdown

Boise’s top-performing schools cluster in a few distinct areas, each with a different character.

  • Southeast Boise / West Boise District (Joint School District 2): This area is home to Silver Sage Elementary, Cecil D. Andrus Elementary, Frontier Elementary, and Eliza Hart Spalding STEM Academy. Four of the top 10 schools sit within this district, making it the single strongest cluster for families prioritizing academic outcomes. Silver Sage leads with an 8.7 composite.

  • North End / Central Boise (Boise School District): The North End is Boise’s most established neighborhood, and its schools reflect that stability. Washington Elementary, Liberty Elementary, and Lowell Elementary all score between 7.5 and 8.0. These schools tend to have slightly higher student-teacher ratios (17.8:1 at Washington and Liberty) but deliver strong academic and growth scores.

  • West Boise / Ustick Corridor: Capital High School — the only high school in the top 10 — anchors this area. With 1,162 students and a composite score of 7.7, Capital stands out for its growth score (8.5), meaning students are making significant year-over-year gains regardless of where they start.

  • Charter Corridor: Sage International School of Boise serves 1,022 students across K-12 and scores 8.2 overall. It is the highest-performing charter in the city and the only K-12 campus in the top 10. Families wanting a single-school experience from kindergarten through graduation should give it a close look.

Top 10 Schools in Boise — Deep Dives

1. Silver Sage Elementary School — Composite: 8.7/10 | Academic: 9.2 | Growth: 9.2 | Environment: 7.3 Silver Sage is the top-ranked school in Boise and the 9th-best school in the entire state of Idaho. With 309 students and a 15.4:1 student-teacher ratio, it combines elite academic results with strong year-over-year growth. The environment score of 7.3 rounds out a well-balanced profile.

2. Sage International School of Boise — Composite: 8.2/10 | Academic: 8.9 | Growth: 6.2 | Environment: 6.9 Boise’s top charter school serves 1,022 students across all grade levels, offering the IB framework. The academic score of 8.9 is among the highest in the city. The growth score of 6.2 is the lowest in the top 10, suggesting strong incoming students but less dramatic year-over-year improvement.

3. Cecil D. Andrus Elementary — Composite: 8.2/10 | Academic: 9.4 | Growth: 7.9 | Environment: 7.1 Cecil D. Andrus has the highest raw academic score (9.4) of any school in the top 10. With 407 students and a 15.7:1 ratio, it is a mid-sized elementary with strong fundamentals. Named after Idaho’s former governor, this school consistently performs at an elite level.

4. Frontier Elementary School — Composite: 8.1/10 | Academic: 8.8 | Growth: 6.7 | Environment: 9.0 Frontier stands out for its environment score of 9.0 — the highest of any school in the top 10. At 271 students and a 12.3:1 student-teacher ratio, it offers the smallest class sizes among top performers. Families who value a more intimate learning setting should prioritize this school.

5. Washington Elementary School — Composite: 8.0/10 | Academic: 9.2 | Growth: 9.0 | Environment: 5.2 Washington pairs a 9.2 academic score with a 9.0 growth score, making it one of the most well-rounded performers on paper. The environment score of 5.2 reflects a higher student-teacher ratio (17.8:1) and larger class sizes, a trade-off some families may want to weigh.

6. Liberty Elementary School — Composite: 8.0/10 | Academic: 9.3 | Growth: 8.9 | Environment: 5.2 Liberty’s profile mirrors Washington’s: exceptional academics (9.3) and growth (8.9), offset by a lower environment score (5.2). With 428 students, it is the larger of the two and carries a 17.8:1 ratio. The academic and growth numbers here are among the best in Boise.

7. Lowell Elementary School — Composite: 7.8/10 | Academic: 7.9 | Growth: 8.1 | Environment: 7.3 Lowell delivers balanced scores across all three measured categories. The 308-student school in Boise’s North End neighborhood has a 15.4:1 ratio and no single standout weakness. For families who want consistency over peak performance in any one area, Lowell is a strong choice.

8. Capital Senior High School — Composite: 7.7/10 | Academic: 5.3 | Growth: 8.5 | Environment: 6.7 Capital is the only high school in Boise’s top 10, ranked 47th statewide. Its academic score of 5.3 is the lowest among the top 10, but its growth score of 8.5 tells a different story — students at Capital are making substantial progress. With 1,162 students, it is by far the largest school on this list.

9. Eliza Hart Spalding STEM Academy — Composite: 7.6/10 | Academic: 9.1 | Growth: 8.8 | Environment: 4.3 Spalding’s STEM focus produces a 9.1 academic score and 8.8 growth score, but the environment score of 4.3 — the lowest in the top 10 — reflects its 18.5:1 student-teacher ratio across 649 students. Families drawn to STEM curricula should weigh the academic upside against larger class sizes.

10. Les Bois Junior High School — Composite: 7.5/10 | Academic: 7.0 | Growth: 8.4 | Environment: 6.6 Les Bois is the top-performing middle school in Boise, ranked 58th in Idaho. With 668 students and a 16.3:1 ratio, it serves as a natural feeder to Capital High School. The growth score of 8.4 indicates students are well-prepared for the transition to high school.

Parent Decision Framework

Choosing a school in Boise requires balancing several factors specific to this market.

  • Elementary is where the strength is. Eight of the top 10 schools are elementary campuses. If you are moving to Boise with young children, the neighborhood you choose matters enormously — the difference between a 5.0 and an 8.7 school can come down to a few blocks.

  • Growth scores reveal hidden value. Schools like Capital High and Washington Elementary may not top the academic rankings, but their growth scores (8.5 and 9.0 respectively) show that students are improving faster than peers at similar schools. Growth is especially important if your child is not starting at the top of the class.

  • Environment vs. academics — a real trade-off. Frontier Elementary has the best environment score (9.0) with a 12.3:1 ratio but ranks 4th overall. Washington and Liberty have superior academic and growth scores but much larger classes (17.8:1). Decide which matters more for your child’s learning style.

  • Charter options are limited but strong. With only 9 charters in the city, Boise is not a charter-heavy market. But Sage International (8.2 composite) proves that the right charter can compete with the best traditional schools. Its K-12 model eliminates transition stress between school levels.

  • Middle and high school options are thinner. The top 10 is dominated by elementary schools. Parents of older students should look carefully at Les Bois Junior High and Capital Senior High, but also explore options in neighboring communities via the Idaho state page.

How Boise Compares

Boise’s citywide average of 5.9/10 is solid but not exceptional. The top score of 8.7 is strong, indicating that the best schools in Boise can compete with top performers in larger metro areas. The 14.8:1 average student-teacher ratio is competitive for a Western city and reflects Idaho’s relatively lower cost of living translating into manageable class sizes.

The 9 charter schools represent about 9% of Boise’s school count — lower than many Sun Belt cities but typical for Idaho, which has a more traditional public school structure. Boise has zero magnet schools, meaning school choice is driven primarily by neighborhood attendance zones and the charter lottery system.

For a full picture of how Boise’s schools stack up against the rest of the state, visit the Idaho state rankings page.

Explore Boise Schools

See All Boise Schools on the Map

Browse every school in Boise with scores, enrollment, and student-teacher ratios on the Boise city page. Filter by school level, sort by any metric, and find the right fit for your family.

The Elementary Ceiling Problem

Boise’s data reveals a structural challenge: the city produces excellent elementary schools but struggles to maintain that quality through middle and high school. The top elementary composite score is 8.7, but the top middle school scores just 7.5 and the top high school 7.7. More telling is the academic score drop — Cecil D. Andrus Elementary hits 9.4, while Capital High School manages only 5.3.

This pattern is not unique to Boise, but it is more pronounced here than in many comparable cities. The gap suggests that families benefiting from strong elementary programs should plan ahead for the middle school transition. Les Bois Junior High (7.5) is the clear best option at that level, but families in the Joint School District 2 area may want to explore whether their elementary feeder patterns align with the strongest secondary options. The growth scores at Capital High (8.5) and Les Bois (8.4) offer some reassurance — students at these schools are still progressing, even if raw academic scores are lower.

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