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Schools in 92627 — Costa Mesa, California: 92627 schools average near the state. The 67.5-point spread is where the choice actually lives.

92627 has 9 ranked schools in Costa Mesa, averaging a Scope Score of 46.1/100 — within 1.3 points of the state average of 44.8 (CDE CAASPP 2025). Scores range from 21.7 to 89.2, a 67.5-point spread. 1 school ranks in the 90th percentile or above statewide.

Avg Scope Score
46.1
State avg: 44.8
SchoolScope composite
Score Range
67.5
21.7 – 89.2
Avg Exceeded %
20.7%
State avg: 21.3%
Chronic Absenteeism
19.3%
State avg: 17.9%
Schools Ranked
9
With Scope Scores

How 92627 schools perform

The top-ranked school is International School for Science and Culture with a Scope Score of 89 and 62.5% of students exceeding standard.

Average proficiency falls 6.0 percentage points from grade 3 to grade 5 across 92627. This pattern in test scores may reflect a variety of factors and is worth examining school by school.

Chronic absenteeism across 92627 averages 19.3%, near the state average of 17.9%. CDE CAASPP 2025.

How 92627 compares to nearby zip codes

ZipCitySchoolsAvg Scorevs 92627
92627Costa Mesa9Developing
46.1/100
92626Costa Mesa13Developing
46.9/100
+0.8
92630Lake Forest9Solid
57.1/100
+10.9
92620Irvine9Strong
70.6/100
+24.5
92618Irvine9Solid
61.4/100
+15.2

Source: CDE CAASPP 2025, analyzed by SchoolScope.

School archetypes in 92627

1 High Ceiling1 Strong All-Around1 Growth Engine6 Building Momentum

Hidden gems: 1 school in 92627 is classified as Growth Engine — 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

#SchoolExceededScore
1International School for Science and Culture
Orange County Department of Education High Ceiling
62.5%Strong
89/100
2Heinz Kaiser Elementary
Newport-Mesa Unified Strong All-Around
38.4%Solid
59/100
3Estancia High
Newport-Mesa Unified Building Momentum
16.9%Solid
52/100
4Everett A. Rea Elementary
Newport-Mesa Unified Growth Engine
17.6%Developing
47/100
5Victoria Elementary
Newport-Mesa Unified Building Momentum
24.4%Developing
43/100
6Back Bay High
Newport-Mesa Unified Building Momentum
0.0%Developing
41/100
7Pomona Elementary
Newport-Mesa Unified Building Momentum
12.9%Developing
36/100
8Wilson Elementary
Newport-Mesa Unified Building Momentum
6.5%Needs Support
26/100
9Whittier Elementary
Newport-Mesa Unified Building Momentum
7.4%Needs Support
22/100
Source: CDE CAASPP 2025 · 9 schools in 92627Methodology · Explore all schools

Schools in 92627 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 9 ranked schools in Costa Mesa, averaging a Scope Score of 46.1/100 — within 1.3 points of the state average. 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 89/100 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 46.1/100 — within 1.3 points of the state average of 44.8. The exceeded rate averages 20.7% vs. 21.3% statewide.
How many schools are in zip code 92627?
Zip code 92627 has 9 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 proprietary composite rating (0–100) based on seven dimensions of publicly available California school data: the exceeded-vs-met standard split, overall proficiency, grade 3–5 growth, chronic absenteeism, suspension rate, ELPAC English Learner proficiency, and baseline proficiency. Full methodology and weights.