A good ACT score is one that makes you competitive at the colleges you want to attend, typically 21+ for many four-year schools, 26+ for selective state flagships, and 30+ for highly selective universities. National context helps, but "good" is always relative to your goals.
National averages and percentiles
The ACT composite ranges from 1 to 36. Recent national averages sit around 19–20, meaning half of test-takers score below that range. A composite of 24 roughly places you near the 75th percentile nationally; a 30 is near the 93rd.
Section scores also run 1–36. Colleges see each section, so a strong composite with one very low section can still raise questions in admissions or scholarship review.
What colleges consider "good"
Admissions offices publish middle-50% ACT ranges for admitted students. If your score sits inside that band, you are academically in range. Below the 25th percentile, you may need strengths elsewhere (GPA, essays, activities) to balance the application, and that's a path plenty of students take.
For school-specific targets, read what ACT score you need for college. A "good" score at one university may be below average at another.
Good scores for scholarships
Merit aid often uses clear ACT cutoffs. State programs and individual schools may award automatic scholarships at 27, 30, or 32, even when those scores are not required for admission. Checking each institution's scholarship grid is worth it; a point or two can translate to thousands of dollars per year.
When your score is "good enough"
If your composite matches or exceeds the middle-50% range at every school on your list, more testing may not change admissions outcomes much. Your time might be better spent on essays, senior grades, or activities, unless you are chasing a scholarship threshold.
If you are below your targets, a structured plan matters more than retaking blindly. Start with how to study for the ACT and how long to study before booking another test date.
ACT vs SAT: does the number translate?
Colleges accept both tests. If you are comparing scores across exams, see ACT or SAT, which to take and whether the ACT is harder than the SAT. Pick the test where your practice results are strongest, not the one your friends prefer.
The bottom line
A good ACT score opens doors at your target schools and can unlock merit aid. Define good by your list, not by classroom comparisons. Once you know your number, prep with purpose, and retake only when you have a realistic plan to improve.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.