Williamsville South High School is a high school located in Williamsville, New York, a suburb of Buffalo, New York. South is one of three high schools in the Williamsville Central School District, along with Williamsville North High School and Williamsville East High School.
Serving 796 students in grades 9-12, Williamsville South High School ranks in the top 10% of all schools in New York for overall test scores (math proficiency is top 5%, and reading proficiency is top 5%).
The percentage of students achieving proficiency in math is 85-89% (which is higher than the New York state average of 52%). The percentage of students achieving proficiency in reading/language arts is 75-79% (which is higher than the New York state average of 49%).
The student-teacher ratio of 11:1 is equal to the New York state level of 11:1.
Minority enrollment is 26% of the student body (majority Asian and Black), which is lower than the New York state average of 61% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 796 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 26%
- Graduation Rate: 94% (Top 30% in NY)
- Overall Testing Rank: Top 10%
- Math Proficiency: 85-89% (Top 5%)
- Reading Proficiency: 75-79% (Top 20%)
- Science Proficiency: 90-94% (Top 20%)
- Source: National Center for Education Statistics (NCES), NY Dept. of Education
Top Rankings
Williamsville South High School ranks among the top 20% of public schools in New York for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Williamsville South High School's student population of 796 students has declined by 10% over five school years.
The teacher population of 72 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
796 students
Total Classroom Teachers
72 teachers
Year Founded
1892
Colors
White, Blue
School Motto
Tradition of Excellence
School Rankings
Williamsville South High School ranks within the top 10% of all 4,346 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Williamsville South High School is 0.44, which is less than the diversity score at state average of 0.73. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#239 out of 4346 schools
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
85-89%
52%
Reading/Language Arts Test Scores (% Proficient)
75-79%
49%
Science Test Scores (% Proficient)
90-94%
78%
Student-Teacher Ratio
11:1
11:1
American Indian
n/a
1%
Asian
8%
10%
Hispanic
5%
31%
Black
7%
15%
White
74%
39%
Hawaiian
n/a
n/a
Two or more races
6%
4%
All Ethnic Groups
Graduation Rate
94%
87%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
25%
55%
Eligible for Reduced Lunch
3%
2%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NY Dept. of Education
School Notes
- School Mascot: Billies
Frequently Asked Questions
What is Williamsville South High School's ranking?
Williamsville South High School is ranked #239 out of 4,346 schools, which ranks it among the top 10% of public schools in New York.
What schools are Williamsville South High School often compared to?
Williamsville South High Schoolis often viewed alongside schools like Williamsville North High School, Amherst Central High School, Williamsville East High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
85-89% of students have achieved math proficiency (compared to the 52% NY state average), while 75-79% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Williamsville South High School?
The graduation rate of Williamsville South High School is 94%, which is higher than the New York state average of 87%.
How many students attend Williamsville South High School?
796 students attend Williamsville South High School.
What is the racial composition of the student body?
74% of Williamsville South High School students are White, 8% of students are Asian, 7% of students are Black, 6% of students are Two or more races, and 5% of students are Hispanic.
What is the student-teacher ratio of Williamsville South High School?
Williamsville South High School has a student ration of 11:1, which is equal to the New York state average of 11:1.
What grades does Williamsville South High School offer ?
Williamsville South High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Williamsville South High School part of?
Williamsville South High School is part of Williamsville Central School District.
School Reviews
5 10/10/2025
Williamsville South was like my second home for what felt like a long time. I walked in as a freshman, eager to get it done and over with. As I walked away the day of the graduation ceremony with my diploma in hand, I truly wished we could have just one more year together in that building. Do not misunderstand - I am ready and excited to see what's next. But I loved South. And, weird is this sounds, South loves back. It always does, without fail.The teachers are the nicest bunch you'll ever see, and even the accessory staff (librarians, lunch monitors, secretaries) are a great few. There is an enormous range of freedom for what a student wishes to do, be it the path of writing, poetry, athletics, the realm of music, languages, or simply enjoyment and relaxation. There is a plethora of things to be done. Things, I think, those who miss out on them, even if it felt right then, are things they would miss having.I will criticize that South places far too much money in athletics and not nearly enough in academics. But this is all I can say negatively.I pray future generations can have an experience like I did. Memories of things like getting bullied, getting an F on a test, or spilling your lunch all over last a few days. Memories of the love you'll feel from school, the love you'll get from your friends and the love I would hope you return - those memories last a lifetime.
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