Enrollment
332
High
DISTRICT 347 · STATE 668
SCHOOL COMMUNITY·CANTON CENTRAL SCHOOL DISTRICT·NCES 360647000428
H C WILLIAMS SENIOR HIGH SCHOOL
99 STATE ST, CANTON, NY 13617 · (315) 386-8561 · St. Lawrence County
GRADES 09–12HIGH41-RURALTITLE IREGULAR SCHOOL332 STUDENTS
Student : Teacher
9.7:1
34 FTE teachers
DISTRICT 11.6:1 · STATE 11.0:1
Free / Reduced Lunch
41%
136 students
DISTRICT 38% · STATE 58%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within CANTON CENTRAL SCHOOL DISTRICT. Attendance zones can vary; confirm enrollment with the district.
QUIET COMMUNITY
Be the first to start a discussion at H C WILLIAMS SENIOR HIGH SCHOOL.
START A DISCUSSIONTest scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)English Language Arts
95.0%
NY avg 58.3% . -3.0pp since 2023
Math
84.0%
NY avg 57.4% . -11.0pp since 2023
What this means: On the NYS Assessments, New York's statewide test, about 95 of every 100 students at this school read and write at grade level and about 84 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are down about 3 points since 2023, while math scores are down about 11 points.
Source: NYS Assessments. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of NY schools after controlling for student poverty
Actual proficiency
92.6%
composite math + reading, all grades
Predicted
59.9%
based on NY schools with similar FRL share
Beats by
+32.7pp
above demographic expectation
What this means: About 93% of students here test proficient in math and reading, well above the roughly 60% typical for New York schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 33 points, placing it in New York's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
332
-68 (-17%) vs 2017
Student : Teacher
9.7:1
was 16.0:1
% White
93%
was 96%
% Hispanic
2%
was 1%
% Black
1%
was 1%
% Asian
1%
was 1%
Source: NCES Common Core of Data
About H C WILLIAMS SENIOR HIGH SCHOOL
H C WILLIAMS SENIOR HIGH SCHOOL is one of the close-knit secondary schools in CANTON, New York, one of the schools within CANTON CENTRAL SCHOOL DISTRICT, with 332 students on its rolls from grades 9 through 12. Enrollment runs roughly 50% leaner than the state mean of about 668.
Across the 3 schools in CANTON CENTRAL SCHOOL DISTRICT (1,041 students total), H C WILLIAMS SENIOR HIGH SCHOOL accounts for its share of the district's footprint.
Looking at the student body, H C WILLIAMS SENIOR HIGH SCHOOL records that nearly all students (93%) are White. The remainder reads as 3% multiracial. Compared to St. Lawrence County overall, the school's racial mix sits in roughly the same range.
Looking at the economic backdrop, The school employs 34 full-time-equivalent teachers, for a student-teacher ratio near 9.7:1. The state averages around 11.0:1, so this campus is tighter than the state norm typical. Roughly 41% of students at H C WILLIAMS SENIOR HIGH SCHOOL qualify for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.
Adjusting for the school's free-and-reduced-lunch share, H C WILLIAMS SENIOR HIGH SCHOOL sits in the top 10% of New York schools after the BeatsExpectations adjustment. Predicted proficiency for the school's FRL share is roughly 59.9%; actual is 92.6%, +32.7 points clear of the demographic baseline.
Around the school, St. Lawrence County reports that median household earnings sit near $62,850, roughly 25% of adults have completed at least a four-year degree, and roughly 12% of residents live below the federal poverty line. H C WILLIAMS SENIOR HIGH SCHOOL is one of 40 public schools in St. Lawrence County (combined enrollment of about 13,653 students).
F S BANFORD ELEMENTARY SCHOOL is the nearest neighboring public school, about 0.0 miles from this campus. Within five miles, there are 3 other public schools. Among the 8 schools in that immediate cluster with test data (this one included), H C WILLIAMS SENIOR HIGH SCHOOL ranks 1st on composite proficiency, above the local average of 62.5%.
Geographically, the school is in a countryside area.
Trend over the last 7 years. Over the past 7-year window, the student count contracted 17%: 400 students in 2018 compared to 332 in 2025. The student-to-teacher ratio narrowed from 16.0:1 in 2018 to 9.7:1 today.
On allk12, posts here usually surface around open house dates, ride-share offers, and field-trip permission slips. Contributors range from current parents to recent graduates and teachers.
St. Lawrence County at a glance
View full county profilePopulation
107,226
Census ACS
Median income
$62,850
Household, ACS
Bachelor's+
25%
Adults 25+
Poverty rate
12%
Below federal line
Schools in county
40
13,653 students
Quick facts
Related schools
Other schools in CANTON CENTRAL SCHOOL DISTRICT
- F S BANFORD ELEMENTARY SCHOOLElementary · 408 students
- J M MCKENNEY MIDDLE SCHOOLMiddle · 301 students
- ST LAWRENCE CORRECTIONAL FACILITYElementary
Other schools in CANTON
- F S BANFORD ELEMENTARY SCHOOLElementary · 408 students
- J M MCKENNEY MIDDLE SCHOOLMiddle · 301 students
- SAINT LAWRENCE-LEWIS BOCESCombined · 225 students
- ST LAWRENCE CORRECTIONAL FACILITYElementary
Nearby schools
- F S BANFORD ELEMENTARY SCHOOL0.0 mi · 408
- J M MCKENNEY MIDDLE SCHOOL0.0 mi · 301
- SAINT LAWRENCE-LEWIS BOCES1.0 mi · 225
- POTSDAM SENIOR HIGH SCHOOL10.4 mi · 373
- LAWRENCE AVENUE ELEMENTARY SCHOOL10.7 mi · 526
- A A KINGSTON MIDDLE SCHOOL10.7 mi · 393
Frequently asked questions
About H C WILLIAMS SENIOR HIGH SCHOOLWhat is the total enrollment at H C WILLIAMS SENIOR HIGH SCHOOL?
H C WILLIAMS SENIOR HIGH SCHOOL enrolls approximately 332 students in grades 09-12.
Is H C WILLIAMS SENIOR HIGH SCHOOL an elementary, middle, or high school?
H C WILLIAMS SENIOR HIGH SCHOOL is a high school covering grades 09-12.
What is the student-teacher ratio at H C WILLIAMS SENIOR HIGH SCHOOL?
The student-to-teacher ratio at H C WILLIAMS SENIOR HIGH SCHOOL is approximately 9.7:1 (34 FTE teachers).
How diverse is H C WILLIAMS SENIOR HIGH SCHOOL?
H C WILLIAMS SENIOR HIGH SCHOOL reports a student body of 93% White, 2% Hispanic, 1% Black, 1% Asian, 3% Two or more.
Is H C WILLIAMS SENIOR HIGH SCHOOL public or private?
H C WILLIAMS SENIOR HIGH SCHOOL is a public K-12 school, overseen by CANTON CENTRAL SCHOOL DISTRICT.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.