Washington University in St Louis SAT Scores, GPA, and ACT (2026)

Washington University in St Louis is a private nonprofit university in St. Louis, MO, with 7,857 undergraduates, and the Washington University in St Louis SAT scores it admits sit near the top of the national scale. The middle 50 percent of enrolled students scored between 1500 and 1570 in the 2024-2025 cycle, with an average of 1530. Admission is tight: 12.1% of applicants got in. That works out to roughly 1 out of 8, so for every student who receives an offer, about 7 others walk away without one, and most of those 7 had strong files too.

The section splits tell you where the bar sits. Reading and Writing runs 730 to 770, while Math runs 770 to 800, meaning a quarter of admitted students posted a perfect Math score. The ACT middle 50 of 33 to 35 tells the same story on a different scale. Testing is optional in the most recent federal data, but at a school this selective, optional does not mean irrelevant. A score inside that 1500 to 1570 window is one of the clearest signals you can send, and choosing to submit one is itself a small statement of confidence. WashU's undergraduate class is small for its reputation, which keeps every seat contested.

Read your own score against the 1500 to 1570 middle 50. Below 1500 puts you in the bottom quarter of admitted students, which is survivable only if the rest of your file is exceptional. Inside the range means your score matches the class WashU already enrolls, so it neither helps nor hurts much on its own. Above 1570 puts you ahead of 3 out of 4 admitted students and shifts attention to your grades and activities.

Math sets the higher bar here. The Math middle 50 is 770 to 800 against 730 to 770 for Reading and Writing, so a 750 Math score, strong almost anywhere, lands below WashU's 25th percentile. If your sections are uneven, Math is usually the one worth another round of prep. The optional testing policy adds one more decision to make. With a 12.1% admit rate, an applicant who can produce a score in range should almost always submit it, because withholding a number forces the committee to lean harder on everything else in the file. If your best practice tests still sit well below 1500, keep prepping before you commit either way.

Admitted students at Washington University in St Louis typically present an unweighted GPA around 3.8 to 4.0. That number travels with context. A 3.9 built on the hardest schedule your school offers reads differently than a 3.9 built on standard classes, and admissions readers weigh the rigor as much as the digits. At this level the transcript question is rarely whether you earned As. It is where you earned them, so take the toughest courses you can handle without letting your grades slide.

If your GPA sits at the lower edge of that band, a strong SAT is the fastest offset. Grades take semesters to move. A test score can move in months, and a result at or above WashU's 1530 average gives a reader a concrete reason to look past a transcript that dipped. The reverse holds too. A near perfect GPA with no score, at a school where testing is optional, leaves one open question in your file that a 1500 or better would close. Pair the most rigorous courses you can manage with a score in range and the two reinforce each other.

Set two targets. Hitting 1500, the 25th percentile, keeps you in range and out of the bottom quarter. Hitting 1570 or above, the 75th percentile, puts you in the top quarter of admitted students, and given a 12.1% admit rate, that cushion matters. By section, aim for 770 or higher in Math and 730 or higher in Reading and Writing to clear both floors. Notice how little room the Math range leaves. From the 770 floor to a perfect 800 is only 30 points, so careless errors cost more here than at almost any other school, and accuracy drills matter as much as new content.

Work backward from those numbers. Our score plans map how many points per week you need depending on when you test, and a diagnostic shows exactly how far each section sits from the WashU floors right now. Take the diagnostic this week, then build your study calendar around closing the larger of your two section gaps first. If Math is the gap, put it first in every session. If both sections are already in reach, hold them there with weekly timed sections until test day.