Schools in 92627 — Costa Mesa, California: 92627 schools average near the state. The 62.6-point spread is where the choice actually lives.

92627 has 8 ranked schools in Costa Mesa, averaging a Scope Score of 42.6/100 — within 1.8 points of the state average of 40.7 (a state average weighted to 92627's own mix of school levels; CDE CAASPP 2025). Scores range from 17.9 to 80.4, a 62.6-point spread. 2 schools rank in the 90th percentile or above statewide.

How 92627 schools perform

The top-ranked school is International School for Science and Culture with a Scope Score of 80 and 62.5% of students exceeding standard.

Cohort growth among 92627's elementary schools — the returning cohort, 2023 G3 → 2025 G5 — averages +69 scale-score points across 5 schools in 92627 with a large enough tested cohort. Scale scores rise with grade for nearly every school, so this describes the cohort's trajectory, not a ranking against other zip codes — worth examining school by school.

Chronic absenteeism across 92627 averages 19.3%, near the state average of 18.5%, weighted to 92627's own level mix. CDE CAASPP 2025.

How 92627 compares to nearby zip codes

Zip	City	Miles	Schools	Avg Score	vs 92627
92627	Costa Mesa	—	8	42.6/100	—
92626	Costa Mesa	2.1	12	47.3/100	+4.7
92660	Newport Beach	2.8	5	57.8/100	+15.2
92646	Huntington Beach	2.9	9	64.8/100	+22.2
92708	Fountain Valley	4.7	13	66.0/100	+23.4
92648	Huntington Beach	4.9	5	61.3/100	+18.7

Source: CDE CAASPP 2025, analyzed by SchoolScope.

School archetypes in 92627

1 High Ceiling1 Solid Base1 On the Rise5 Building Momentum1 not compared

Hidden gems: 1 school in 92627 is classified as On the Rise — showing positive growth trajectories that raw proficiency scores alone don't capture. These are schools where students leave with more than they arrived with.

Archetypes are data-driven labels based on Scope Score dimensions. Learn more

For the data nerds

All schools in 92627

ranked by Scope Score · 2024–25 CAASPP

Figures

Score range17.9 – 80.4

62.6 pts SchoolScope composite

Chronic absenteeismstate avg 18.5% (level-matched)

19.3% CDE Attendance 2025

Elementary Schools (7)

avg 40.4/1007 ranked elementary schools2 Strong, 2 Solid, +3 more

#	School	Exceeded	Score
1	International School for Science and Culture Orange County Department of Education High Ceiling	62.5%	98th percentile · StrongScope Score 80/100
2	Heinz Kaiser Elementary Newport-Mesa Unified Solid Base	38.4%	82nd percentile · StrongScope Score 54/100
3	Everett A. Rea Elementary Newport-Mesa Unified On the Rise	17.6%	59th percentile · SolidScope Score 39/100
4	Victoria Elementary Newport-Mesa Unified Building Momentum	24.4%	58th percentile · SolidScope Score 39/100
5	Pomona Elementary Newport-Mesa Unified Building Momentum	12.9%	37th percentile · DevelopingScope Score 31/100
6	Wilson Elementary Newport-Mesa Unified Building Momentum	6.5%	11th percentile · Needs SupportScope Score 21/100
7	Whittier Elementary Newport-Mesa Unified Building Momentum	7.4%	7th percentile · Needs SupportScope Score 18/100

High Schools (2)

avg 50.3/1002 ranked high schools1 Strong, 1 Solid

#	School	Exceeded	Score
1	Estancia High Newport-Mesa Unified Building Momentum	16.9%	61st percentile · SolidScope Score 56/100
2	Back Bay High Newport-Mesa Unified continuation high school	0.0%	99th percentile · StrongWithin its own school classScope Score 44/100

Source: CDE CAASPP 2025 · 8 schools in 92627Methodology · Explore all schools

Schools in 92627 on the map

Open these schools on the map →

Data source: California Department of Education · CAASPP 2024-25 · Methodology

Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.

What Scope Scores can't tell you about 92627

Numbers tell you whether students are clearing the bar. A school visit tells you whether they're happy doing it. These metrics are intentionally missing from the Scope Score: class sizes and student-teacher interaction quality; arts, music, athletics, and enrichment programs; teacher experience and turnover; campus safety and social-emotional support; parent and community engagement; quality of special education and gifted programs; how school zones and enrollment boundaries affect access. Full methodology

Frequently asked questions

Are the schools in 92627 (Costa Mesa) good?

92627 has 8 ranked schools in Costa Mesa, averaging a Scope Score of 42.6/100 — within 1.8 points of the state average, a benchmark weighted to 92627's own mix of school levels. 20.7% of students exceed the state standard on average. Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.

What is the best school in 92627?

The highest-scoring school in zip code 92627 is International School for Science and Culture with a Scope Score of 80/100 and 62.5% of students exceeding the state standard. See full methodology.

How do 92627 schools compare to the state average?

Schools in zip code 92627 average a Scope Score of 42.6/100 — within 1.8 points of the state average of 40.7, a state average weighted to zip code 92627's own mix of school levels. The exceeded rate averages 20.7% vs. 21.2% statewide (also level-weighted).

How many schools are in zip code 92627?

Zip code 92627 has 8 ranked schools with Scope Scores. Schools are ranked using a weighted composite of CAASPP test performance, growth trajectory, chronic absenteeism, and suspension rate. Schools with insufficient testing data are not ranked.

What does the Scope Score measure?

The Scope Score is SchoolScope's composite rating (0–100), built from publicly available California school data across academic-performance and school-climate signals. Full methodology and weights.

All California Schools Orange County Department of Education Newport-Mesa Unified Costa Mesa Schools Zip 92626 Zip 92660 Zip 92646 Zip 92708 Zip 92648

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