What Percentile Is a 27 on the ACT? Score Rank Explained

A 27 on the ACT places a student at roughly the 86th percentile nationally, meaning they scored higher than about 86% of test-takers and lower than about 14%. This is a strong, above-average score that puts many colleges—including a wide range of state universities—within reach. Because percentile rankings shift slightly with each test administration, it helps to understand what “what percentile is a 27 on the ACT” actually measures and why it matters for college admissions.

National Percentile for a 27

The ACT composite ranges from 1 to 36 and averages the English, Math, Reading, and Science sections. According to ACT’s national score data, a composite of 27 has historically fallen in the 85th to 87th percentile range among graduating seniors. When the ACT reports a composite score, it also provides a national percentile rank on the score report, so families can see exactly where a given score stood for that test year.

A few practical anchors around this score:

• 23–24 composite — around the 70th percentile, solidly above average
• 27 composite — around the 86th percentile, well above average
• 30 composite — around the 93rd percentile, competitive for highly selective schools

The gap between each point widens near the top of the scale, which is why moving from a 27 to a 30 is a bigger jump in percentile terms than moving from a 20 to a 23.

National vs. State Percentiles

ACT percentiles come in two flavors, and mixing them up is a common mistake. National percentiles compare a student to everyone who tested nationwide. State percentiles compare them only to students in their own state. In states where ACT participation is high but average scores are lower, a 27 can rank higher on the state percentile than on the national one. When comparing scores across schools, always check which percentile is being cited—colleges generally look at national ranks.

What a 27 Means for College Admissions

A 27 won’t get a student into the most selective universities, where admitted classes often average 32–34, but it opens a wide range of solid four-year colleges. Many large public universities admit students centered around the mid-to-high 20s, so a 27 sits comfortably in the competitive range for those schools.

The score is only one piece of the application. The National Center for Education Statistics tracks how colleges weigh factors like GPA, course rigor, and essays, and most admissions offices treat test scores as one input among several. A 27 paired with a strong GPA and challenging coursework is far more compelling than the score alone.

Does the Section Breakdown Matter?

Yes. A 27 composite could come from four consistent 27s, or from a mix like a 34 in Reading and a 21 in Math. Some colleges and scholarships look at section scores, not just the composite, especially for math-heavy majors or honors programs. If a student’s section scores are uneven, it’s worth checking whether specific programs have minimum section requirements.

Worked Example

Imagine a student with a 27 composite, a 3.7 unweighted GPA, and four AP courses. Their ACT score places them above roughly 86% of test-takers, and their GPA is similarly strong. At a mid-tier state university where the middle 50% of admitted students score between 24 and 29, this student is right in the competitive band—likely to be admitted, and a reasonable candidate for merit scholarships. At an Ivy League school averaging 33, the same 27 would be a weak spot that other parts of the application would need to offset.

Should You Retake for a Higher Score?

Whether to retake depends on the target schools and how close the current score is to their middle 50% range. If a student’s dream school reports a 28–32 middle band, moving from 27 to 29 or 30 could genuinely change the outcome. Most students take the ACT more than once, and scores often improve with targeted prep on the weakest section.

A retake makes less sense if the score already sits above the target schools’ 75th percentile, or if GPA and other factors are the real bottleneck. In that case, time is usually better spent strengthening the rest of the application.

How to Decide

• Check each target school’s middle 50% ACT range on its admissions website.
• Identify the gap between the current score and the top of that range.
• Weigh the cost—test fees, prep time, and stress—against the likely gain.
• Consider superscoring if the schools accept it, since combining best section scores across sittings can lift the composite.

How ACT Percentiles Are Calculated

Percentile ranks are not fixed numbers pulled from a single master list—they are recomputed each year based on the actual scores of a specific group of students. The ACT typically reports percentiles using graduating seniors who took the test within the past three years, which smooths out year-to-year swings and prevents a single unusual test date from distorting the ranking.

Two details matter here. First, the reference group is graduating seniors, so a junior who tests early is technically being compared to a cohort they haven’t joined yet. Second, the percentile shown on a score report may differ from the percentile published in national statistical tables, because the report reflects the most recent cohort while published tables describe a completed graduating class.

Why the Same Score Can Show Different Percentiles

A student might see a 27 labeled as the 85th percentile on one report and the 87th on another, even a year apart. This is normal. If the testing population shifts—say, a state adopts universal ACT testing and adds thousands of lower-scoring students—the distribution changes, and a fixed score moves relative to it. Universal testing tends to lower average scores statewide while raising the percentile rank of any given score, which is one reason state and national percentiles can diverge so sharply.

Test-Optional Policies and What They Change

Since many colleges dropped test requirements, a 27 carries different weight depending on whether a school allows, recommends, or requires scores. At genuinely test-optional schools, submitting a 27 is usually a net positive if it sits at or above the admitted class’s median. If it falls below, students can often withhold it and let GPA and essays carry the application.

The catch is that “test-optional” and “test-blind” are not the same. Test-blind schools ignore scores entirely, so sending a 27 accomplishes nothing there. At test-optional schools, admissions officers still read a submitted score, so the decision to send becomes a strategic one: submit when the score helps, withhold when it doesn’t. Checking each school’s specific policy wording—rather than assuming—is the safest approach.

Key Takeaways

• A 27 composite on the ACT is roughly the 86th percentile nationally, above about 86% of test-takers.
• Percentiles vary slightly by year and by state, so confirm the national percentile on the official score report.
• A 27 is competitive at many public and mid-tier universities but below the average for highly selective schools.
• Section scores matter for some majors, honors programs, and scholarships—not just the composite.
• Retaking can help if the target schools’ middle 50% range sits above the current score; otherwise, focus energy elsewhere.
• Always weigh test scores alongside GPA, course rigor, and essays in the full admissions picture.