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AP Score Distribution by Subject — How Rare Is a 5?
How AP score distributions work and how to read them: the real patterns by subject, a verified 2024 example, and where to get College Board’s exact 1–5 percentages for any AP exam.
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College Board publishes the exact percentage of students who earn each score (1–5) on every AP exam each summer. Those official distributions are the real answer to "how hard is a 5 in my subject?" — and they vary enormously by course, mostly because of who self-selects into each exam.
Looking for this year's numbers? The complete official 2026 distributions — all 40 subjects with pass rates, sorted — are on the 2026 AP score distributions page.
Where to get the exact numbers
For precise, current figures on any of the 40 AP exams, use College Board's own release: 2024 AP Score Distributions (College Board). As a worked example, the official 2024 AP Biology distribution was 5: 16.8% · 4: 23.1% · 3: 28.4% · 2: 21.7% · 1: 10.0% — about 68% of students scored a 3 or higher.
The patterns that actually matter
- The highest 5-rates belong to self-selecting exams — AP Calculus BC, the AP Physics C courses, and heritage-heavy world-language exams (Chinese, Spanish). A high 5-rate reflects who takes the exam, not that it's easy.
- The lowest 5-rates are typically broad-enrollment exams like AP Environmental Science, AP US Government, and AP Human Geography. (AP Physics 1 used to be among them, but College Board rescaled its scoring in 2025.)
- AP English Literature clusters heavily at a 3, with very few 1s — a tight middle rather than a wide spread.
Why You Shouldn't Obsess Over the Distribution
Most students who score a 3 land in the same place as students who scored a 4 with one or two more correct MCQs. The exam isn't graded on a perfect curve — it's graded against a fixed rubric. Focus on banking the next points, not on comparing yourself to other test-takers.
AP Pass Rates by Subject · Is a 3 Good? · AP Score Calculator
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