A 509 is a real score. It is in the 76th percentile on the official AAMC percentile table, which means 76% of all MCAT scores were equal to or lower. Whether it is the right score for you depends entirely on your goals.
Percentile ranks come from the official AAMC percentile table in effect May 1, 2026 to April 30, 2027, based on all MCAT results from the 2023, 2024, and 2025 testing years combined (N = 305,494).
Is a 509 good?
Honestly: it depends on context, and anyone who gives you a one-word answer is skipping the important part. A 509 sits 8 points above the national mean. For some applicants and some programs, that is workable alongside a strong overall application. For others, target programs may typically expect more.
The right reference point is not the national average but the expectations of the specific schools you are aiming for. Check their published class profiles, and weigh your score in the context of your GPA, experiences, and story.
Section balance matters more here than anywhere
Two students can both score a 509 and be in very different positions. A balanced 509 across C/P, CARS, B/B, and P/S reads differently than a 509 with one section well below the others, because admissions readers see the section breakdown, not just the total.
If one section is carrying most of the shortfall, that is actually useful news: it gives a retake a clear target instead of a vague mandate to "do better at everything."
If you are weighing a retake
The question that matters is not "can I score higher?" but "what specifically would change?" A retake that repeats the first prep usually repeats the first result. A retake built around your actual error patterns, which questions went wrong and which traps you fell for, is a different project.
There is also a real cost to retaking from this range: time, money, and the risk that a similar score adds little. Be honest about whether you have a concrete plan for what would be different. If you do, a retake from the middle of the scale is a well-trodden path.
Common questions about a 509
Is a 509 MCAT score good?
A 509 sits in the 76th percentile on the official AAMC percentile table, meaning 76% of MCAT scores were equal to or lower. Whether it is "good" depends on your goals, your target programs, and the rest of your application.
What percentile is a 509 MCAT score?
On the AAMC percentile table in effect May 1, 2026 to April 30, 2027, a total score of 509 is in the 76th percentile. That means 76% of scores were equal to or lower than 509.
Should I retake the MCAT with a 509?
It depends on your target programs and the rest of your application. A 509 is 8 points above the national mean of 500.6. If your target schools typically expect higher scores and you can name specifically what you would change in your prep, a retake can make sense. If your score already fits your school list, your time may be better spent elsewhere in your application.
Explore nearby scores and next steps
Score context changes quickly on this part of the scale. Compare: is a 507 good? · is a 508 good? · is a 510 good? · is a 511 good?
Planning a retake from a 509? See what these jumps involve: 509 to 514 · 509 to 517 · 509 to 519
For a personalized read on your situation, the free Retaker Calculator is the place to start, and The Retaker Course is the full system when you are ready to build the plan.