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School Profile · Walnut Creek

Northgate High: High scores, healthy climate, strong attendance. We looked for a catch — we didn't find one.

Northgate posts 37.9% exceeding the standard — versus 15.8% statewide — with climate numbers better than most. That doesn't make it perfect. It makes it worth a visit to find what numbers can't measure.

425 Castle Rock Road, 94598 (opens in new tab)·Mt. Diablo Unified·Walnut Creek·Grades 9-12·1,546 students·22% low-income·2024–25 CAASPP·(925) 938-0900
Scope Score
67
💪 Strong All-Around · Solid
ranked #172 statewide · #1 of 8 in Mt. Diablo Unified

Northgate High scores 67 of 100 on SchoolScope's Scope Score — the 92nd percentile of 2,160 California high schools (CDE CAASPP 2025).

Measures test performance, attendance, and climate — not arts, community, or your kid. How we score →

Most rating sites would stop at “62% proficient” and call it done. Northgate deserves a closer read. It sits at the 92nd percentile of 2,160 California high schools — but the ranking is the least interesting thing on this page.

Northgate's low-income kids hit 72.3% proficiency in ELA — a number the same group reaches at 38.2% statewide. If you're trying to read past zip-code-driven test scores, that's the signal worth weighing.

The story this school is actually telling

Proficient by 11th grade
62%
State 36%
Graduate
99%
State 88%
Pass an AP exam
74%
State 35%

Of 100 students here: 62 are proficient by 11th grade → 99 graduate → 74 pass an AP exam. The gaps between those bars are the questions to ask.

72.3%
Low-income · ELA · met standard

Northgate's most underrated number

72.3% of low-income students met the ELA standard — versus 38.2% for the same group statewide. That's the strongest kind of signal a school can post: it holds across income lines.

Northgate low-income: 72.3%State low-income: 38.2%

The 7 things our score weighs

Graduation rate
98.7%
State 87.6%
11.1pp above state avg
Exceeded standard
37.9%
State 15.8%
22.0pp above state avg
College readiness
73.7%
State 35.4%
AP exam pass rate above state avg
Met or exceeded
62.3%
State 35.7%
26.6pp above state avg
Chronic absenteeism
13.8%
State 30.2%
16.4pp below state avg
Suspension rate
2.2%
State 3.6%
1.5pp below state avg
EL proficiency (ELPAC)
20.0%
State 18.0%
2.0pp above state avg
Worth a school visit

Ask what the school is working on next. Strong numbers tell you where a school is, not where it's going.

Where the path goes

The path below follows attendance boundaries — scores shown for each next step.

K-12 Feeder Path

Feeder patterns derived from NCES attendance boundary data. Boundaries are approximate and may have changed — verify with your school district for current assignments.

Your other options

Private alternatives nearby

Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.

The community around it

Community Profile
Context — not part of the Scope Score

Student demographics

Hispanic16.6%
White46.1%
Asian12.3%
Black1.5%
Other23.5%
Low IncomeFree/reduced lunch eligible 22.4% (41pp below CA avg)
Resources & Access
Enrollment
1,546
Near CA avg (~1,450)
Student-Teacher Ratio
23:1
2 more students per teacher than CA avg
Per-Pupil Spending
$409
District avg: $11,965 · CA avg: $14,815 · School-level · CDE ESSA
EL Proficiency (ELPAC)
20.0% Level 4
Share of English Learners reaching full proficiency
Teacher Salary Range
$65,422 – $120,624
District schedule · CA median ~$98K
At Northgate High in Walnut Creek, 72.3% of low-income students met or exceeded the ELA standard in 2025, compared to 31.7% district-wide and 38.2% statewide. Northgate High outperforms its district average for low-income students by 40.6 percentage points in ELA. Other subgroups: Low-Income students (38.8% Math proficient); White students (73.1% ELA proficient). The largest proficiency gap is 42.1 percentage points for disabilities students. Data source: California Department of Education, CAASPP 2024-25. 85 students tested.
Equity Gaps
Absenteeism · Disabilities+12.6pp
26.4% vs 13.8% overall · n=163
Suspension · English Learner+7.2pp
9.4% vs 2.2% overall · n=32
ELA · Disabilities−42.1pp
31.6% vs 73.7% overall · n=40
3 more gaps by subject
ELA Exceeded · Disabilities−30.7pp
15.8% vs 46.5% overall · n=40
Math · Disabilities−41.0pp
10.0% vs 51.0% overall · n=40
Math Exceeded · Disabilities−21.8pp
7.5% vs 29.3% overall · n=40

Subgroups with fewer than 15 students are excluded for privacy. Gaps of less than 3 percentage points are not shown.

Subgroup Proficiency
Low-Income85 tested
ELA 72.3%·Math 38.8%· +40.6pp vs district
White146 tested
ELA 73.1%·Math 48.3%· +9.4pp vs district
Two or More Races72 tested
ELA 81.7%·Math 56.9%· +22.2pp vs district

Weighted average across tested grades. Subgroups with fewer than 15 students excluded. Data: CDE CAASPP 2024-25.

Funding Breakdown
Instruction 63%Support 34%Other 2%

Source: NCES F-33 (2019–2020) · Full district breakdown →

Neighborhood Context
Median Income
$186K
$101K above CA median
Median Home Value
$1.34M
$681K above CA median
Bachelor's+
74%
39pp above CA avg
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level
Whole Child
Teacher experience, college/career readiness, and more. Context only — never part of the Scope Score.
Teacher Experience
14.9 years avg experience
73 teachers · 5% first-year · 5% second-year
Teacher Credentials
91% fully credentialed
AP Courses Offered
36 AP courses
219 students qualified via AP exam

Sources: CDE SARC · CDE College/Career Indicator, 2024-25

Community Profile provides context about who attends this school and the resources available. These factors are never part of the Scope Score. Learn why →

Frequently asked questions

Is Northgate High a good high school?
Northgate High has a Scope Score of 67 out of 100, placing it in the 92nd percentile of California high schools and ranked #172 statewide. 37.9% of students exceeded the state standard on the 2025 CAASPP assessment, which is 22.0 percentage points above the California average of 15.8%. The Scope Score weights six dimensions for high schools: exceeded standard (43%), met or exceeded (22%), grade 3-to-5 growth (15%), chronic absenteeism (10%), ELPAC English Learner proficiency (5%), and suspension rate (5%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.
What are Northgate High's CAASPP test scores?
On the 2025 CAASPP Smarter Balanced Assessment, 62.3% of students at Northgate High met or exceeded the state standard in ELA and Math combined, and 37.9% exceeded it. The gap between those numbers matters: 24.4% of students are at the proficiency floor, while 37.9% pushed past it. Most rating sites report only the combined "proficient" number. SchoolScope surfaces the exceeded-vs-met split because it reveals whether a school's curriculum challenges students beyond minimum proficiency or paces toward it. 708 student-subject combinations were assessed.
How does Northgate High rank in California?
Northgate High ranks #172 among California high schools by Scope Score, placing it in the 92nd percentile. This ranking is based on a weighted composite of 2025 CAASPP test performance (exceeded and met rates), chronic absenteeism, and suspension rate. Unlike single-number ratings, the Scope Score shows what drives the ranking so parents can decide what matters most to their family. See full methodology.
What is the attendance and school culture like at Northgate High?
13.8% of students at Northgate High are chronically absent (missing 10% or more of school days), which is better than the California average of 30.2%. The suspension rate is 2.2%. SchoolScope includes these culture metrics in the Scope Score because they reflect day-to-day school experience in ways test scores alone cannot.
How does Northgate High compare to other schools in Walnut Creek?
Northgate High scores 67/100 (92nd percentile) among California high schools. To compare with nearby schools, SchoolScope shows the same metrics side by side: exceeded rate, proficiency, growth trajectory, and school culture indicators. The school serves 1,546 students. Use the schools in Walnut Creek page or the map view to compare all high schools nearby.
How does Northgate High serve low-income and underrepresented students?
At Northgate High in Walnut Creek, 72.3% of low-income students met or exceeded the ELA standard in 2025, compared to 31.7% district-wide and 38.2% statewide. Northgate High outperforms its district average for low-income students by 40.6 percentage points in ELA. Other subgroups: Low-Income students (38.8% Math proficient); White students (73.1% ELA proficient). The largest proficiency gap is 42.1 percentage points for disabilities students. Data source: California Department of Education, CAASPP 2024-25. 85 students tested. SchoolScope shows disaggregated test scores by demographic subgroup so you can see how a school performs for your child's specific group — not just the school-wide average. Subgroup data is context, not part of the Scope Score: we don't penalize schools for who they serve. See our equity approach.

For the data nerds

Every number on this page

Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.

01Score factorsWeighted composite · 2024–25
Graduation rate · 25%
98.7%
↑ vs CA 87.6% · 63th pctile
Exceeded standard · 22%
37.9%
↑ vs CA 15.8% · 74th pctile
College readiness · 20%
73.7%
↑ vs CA 35.4% · 72th pctile
Met or exceeded · 18%
62.3%
↑ vs CA 35.7% · 69th pctile
Chronic absenteeism · 5%
13.8%
↑ vs CA 30.2% · 63th pctile
Suspension rate · 5%
2.2%
↑ vs CA 3.6% · 57th pctile
EL proficiency (ELPAC) · 5%
20.0%
↑ vs CA 18.0% · 56th pctile
02By grade & subgroupCAASPP 2024–25 · % of tested students
ELATestedEXCMETNEARNOTMET++/CA
Grade 1135346%27%14%12%74%+26
MathTestedEXCMETNEARNOTMET++/CA
Grade 1135529%22%22%27%51%+28
Science (CAST)TestedEXCMETNEARNOT
Grade 5/8/1136318%35%42%4%

CAST is tested in grades 5, 8, and once in high school — not annually. Not part of the Scope Score.

Subgroup · ELATestedMET+vs districtvs CA
Socioeconomically Disadvantaged8572.3%+41+34
White14673.1%+9+11
Two or More Races7181.7%+22+20
03Peer comparison · nearest high schoolssorted by Scope Score
SchoolDistScopeEXCMET+GrowthSusp
Northgate High ←6737.9%62.3%2.2%
Ygnacio Valley High2 mi315.7%20.5%6.5%
California average4415.8%35.7%3.6%
04More measurescontext · not all part of the Scope Score
Graduation Rate
98.7%
AP Exam Prepared
73.7%
A-G Completion
66.6%
A-G are the 15 courses (across 7 subjects) required for UC/CSU eligibility
College-Going Rate
88.5%
Scope Score history
73%67%'19'22'23'24'25
2019 · 2022 · 2023 · 2024 · 2025 · no testing 2020–21 (COVID) · rank #103 → #84 → #108 → #133 → #172
Source: CA Dept. of Education · CAASPP 2024–25 · n=2,160 high schools · Data updated 2026-07-03methodology · data updates · CSV · report issue