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
A+
allk12 Grade
Scored higher than 98% of New York public high schools
- A+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- A+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New York public high schools
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, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 77 | 23% |
| Grade 10 | 88 | 27% |
| Grade 11 | 75 | 23% |
| Grade 12 | 79 | 24% |
| Ungraded | 13 | 4% |
Student demographics
12%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 14% · STATE 72% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). 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
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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.
NYS Assessments results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 95.0% | 84.0% |
| 2023-24 | 98.0% | 95.0% |
% Proficient (Level 3 + Level 4), all students and all tested grades.
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 →
Schools most like H C WILLIAMS SENIOR HIGH SCHOOL
H C WILLIAMS SENIOR HIGH SCHOOL's state test result (92.6% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| H C WILLIAMS SENIOR HIGH SCHOOL this school | 332 | 41.0% | 92.6% |
| FREWSBURG JUNIOR-SENIOR HIGH SCHOOL FREWSBURG | 335 | 39.7% | 60.5% |
| MADRID-WADDINGTON JUNIOR-SENIOR HIGH SCHOOL MADRID | 309 | 41.1% | 56.9% |
| MARCUS WHITMAN HIGH SCHOOL RUSHVILLE | 339 | 39.5% | 74.3% |
| OAKFIELD-ALABAMA MIDDLE SCHOOL HIGH SCHOOL OAKFIELD | 360 | 41.1% | 67.8% |
| FRANKLINVILLE JUNIOR-SENIOR HIGH SCHOOL FRANKLINVILLE | 318 | 42.8% | 65.7% |
Matched among New York high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where H C WILLIAMS SENIOR HIGH SCHOOL ranks
Among high schools| Measure | This school | In New York | In St. Lawrence County |
|---|---|---|---|
| State test proficiency ranked highest first | 92.6% | #34 of 1,135 | #1 of 11 |
| Math proficiency ranked highest first | 84.0% | #99 of 1,109 ▼ 53 | #2 of 11 ▼ 1 |
| Reading proficiency ranked highest first | 95.0% | #63 of 1,135 ▼ 22 | #1 of 11 no change |
| Enrollment ranked largest first | 332 | #871 of 1,216 | #5 of 12 |
| Students per teacher ranked fewest first | 9.7:1 | #256 of 1,058 | #4 of 9 |
| Diversity index ranked most diverse first | 12.1% | #974 of 1,070 | #4 of 9 |
| Free and reduced lunch ranked highest share first | 41.0% | #837 of 1,167 | #9 of 11 |
| Enrollment change since 2017-18 ranked steepest decline first | -17.0% | #230 of 743 | #5 of 9 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
332
-27 (-8%) vs 2020
-10% since 1990-91, when it was 368
Student : Teacher
9.7:1
was 10.9:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 332 | 34.2 | 9.7:1 | 41% (136) |
| 2023-24 | 340 | 38.3 | 8.9:1 | 44% (150) |
| 2022-23 | 346 | 32 | 10.8:1 | 46% (159) |
| 2020-21 | 359 | 33 | 10.9:1 | 35% (126) |
| 2017-18 | 400 | 25 | 16.0:1 | 37% (149) |
| 2015-16 | 387 | 18 | 21.5:1 | 36% (141) |
| 2010-11 | 411 | 36 | 11.4:1 | 33% (135) |
| 2000-01 | 558 | 45 | 12.4:1 | 22% (124) |
| 1990-91 | 368 | 32 | 11.5:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for H C WILLIAMS SENIOR HIGH SCHOOL.
About H C WILLIAMS SENIOR HIGH SCHOOL
H C WILLIAMS SENIOR HIGH SCHOOL is a public low-enrollment high school in CANTON, New York. It covers grades 9 through 12, with a total enrollment of 332 students. Statewide, high schools in New York average about 668 students each.
CANTON CENTRAL SCHOOL DISTRICT is the local district for H C WILLIAMS SENIOR HIGH SCHOOL. It runs 3 schools with 1,041 students.
White students are the large majority at H C WILLIAMS SENIOR HIGH SCHOOL, with 93% of enrollment. Enrollment also includes 3% multiracial. The county population is about 92% White, within a few points of the school. The chance that two students picked at random at H C WILLIAMS SENIOR HIGH SCHOOL belong to different racial or ethnic groups, known as the diversity index, is 12%.
A ratio of 9.7:1 comes from the school's 34.2 full-time-equivalent teachers. For comparison, high schools in New York average 11.0:1. Free or reduced-price lunch eligibility was 41% in 2024-25.
Measured against New York public high schools, H C WILLIAMS SENIOR HIGH SCHOOL receives an A+. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.
After accounting for student poverty, H C WILLIAMS SENIOR HIGH SCHOOL is in the top 10% of New York schools. Its average proficiency rate on state tests of 92.6% is 32.7 points above the 59.9% predicted for its lunch-eligibility share.
Federal survey data for St. Lawrence County show that median household income is about $62,850, 25% of adults hold a bachelor's degree or higher, and about 12% of residents live below the federal poverty line. H C WILLIAMS SENIOR HIGH SCHOOL is among the 40 public schools in St. Lawrence County.
J M MCKENNEY MIDDLE SCHOOL is the closest public school, less than a tenth of a mile away in a straight line. There are 3 more public schools inside five miles. H C WILLIAMS SENIOR HIGH SCHOOL places 1st of 8 on proficiency among the closest schools that report scores.
H C WILLIAMS SENIOR HIGH SCHOOL is coded as Rural: Fringe in federal locale data.
From 2020-21 to 2024-25, H C WILLIAMS SENIOR HIGH SCHOOL went from 359 students to 332. The ratio of students to teachers went from 10.9:1 to 9.7:1 over the same years.
Threads on this page can be about enrollment questions, class placement, and PTA news. Alumni can share how the school prepared them.
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
- J M MCKENNEY MIDDLE SCHOOL0.0 mi · 301
- F S BANFORD ELEMENTARY SCHOOL0.0 mi · 408
- 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.