SchoolScope vs. GreatSchools
Comparison last reviewed: July 2026 · SchoolScope data: CDE CAASPP 2024–25
GreatSchools gives you a 1–10 rating based on state test data, equity scores, and parent reviews — useful for a quick read anywhere in the U.S. SchoolScope goes deeper on California academics: we split exceeded vs. met standard, show grade 3-to-5 growth trajectories, and weight chronic absenteeism and suspension into a transparent 0–100 Scope Score. Use both. They answer different questions.
What GreatSchools does well
We respect what GreatSchools has built. They're a nonprofit with a genuine mission, and they've earned their position for real reasons:
- Massive reach. Embedded in Zillow, Realtor.com, and other home-buying tools. Parents see school ratings while house-hunting — that's powerful and convenient.
- Equity-focused methodology. They adjust for demographics and measure whether schools serve all students, not just top performers. Their equity rating is something we don't yet offer.
- Parent reviews and community feedback. Qualitative data from actual families — things test scores can't capture, like teacher quality and school culture.
- All 50 states. GreatSchools covers the entire country. We're California only, for now.
- Student progress rating. On some schools, they show a growth metric. It's not on every school, but they're working on it.
- Free and nonprofit. Their mission is genuinely about helping families.
Where we go deeper
GreatSchools gives you a single number from 1 to 10. That number has to carry a lot of weight — and we think it hides too much.
| What we measure | SchoolScope | GreatSchools |
|---|---|---|
| Exceeded vs. Met split | Separate metrics — the difference between a school where 60% exceed standard and one where 10% do | Not surfaced as separate metrics in their public-facing scores |
| Grade-to-grade growth | Grade 3 vs. Grade 5 proficiency comparison shows if a school adds value | Student progress rating on some schools, but not consistently available |
| Chronic absenteeism | Weighted into the Scope Score — schools with high absenteeism rank lower | Not visibly factored into the public 1–10 rating |
| Suspension rates | Weighted into the Scope Score — signals school discipline philosophy | Not visibly factored into the public 1–10 rating |
| Income correlation | We show you raw performance data. A high score means high performance, full stop. | The 1–10 rating has been observed to correlate with neighborhood income — a pattern noted in analyses by Chalkbeat and academic researchers, and acknowledged by GreatSchools themselves |
| Methodology transparency | Fully published — every weight, every formula, every data source | Published at a high level, but the specifics can be opaque |
What we're still missing
- California only — GreatSchools covers all 50 states. We cover one.
- No parent reviews — we have no qualitative data from families, students, or teachers.
- No equity adjustments — we don't adjust for demographics. GreatSchools does this thoughtfully.
- No facilities, programs, or athletics data.
- We're new — less established, smaller dataset history than GreatSchools.
- Test scores don't capture everything about what makes a school great.
The honest verdict
GreatSchools is a good starting point. It gives you a quick read on nearly any school in America, and its equity lens adds real value.
SchoolScope goes deeper on California academics. If you want to understand whether a school is actually pushing kids to exceed — not just meet — standards, and you want absenteeism and suspension data factored in, that's what we built.
Our suggestion: Use both. Start with GreatSchools for the broad picture and parent reviews. Then come to SchoolScope to see the data GreatSchools condenses into a single number.
Frequently asked questions
How is SchoolScope different from GreatSchools?
SchoolScope surfaces data not prominently shown on GreatSchools: the split between students who exceeded vs. met standard, grade 3-to-5 growth trajectories, and chronic absenteeism and suspension rates weighted into a transparent Scope Score.
Is GreatSchools or SchoolScope more accurate?
Both use official state data. GreatSchools provides a broader view with equity adjustments and parent reviews across all 50 states. SchoolScope goes deeper on California academic performance with a Scope Score that separates exceeded from met standard — six scoring dimensions for elementary and middle schools, seven for high schools.
Does SchoolScope replace GreatSchools?
No. We recommend using both. GreatSchools offers parent reviews, equity ratings, and nationwide coverage. SchoolScope provides deeper academic analysis for California schools — elementary, middle, and high — including metrics we haven't found prominently surfaced on GreatSchools.
See the data for yourself
Search any California school — elementary, middle, or high — and see what the Scope Score analysis reveals. Elementary and middle schools: six dimensions. High schools: seven.
Explore schools →