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SCHOOL COMMUNITY·WILLIAMSVILLE CENTRAL SCHOOL DISTRICT·NCES 363147004216

MILL MIDDLE SCHOOL

505 MILL ST, WILLIAMSVILLE, NY 14221 · (716) 626-8300 · Erie County
GRADES 05–08MIDDLE21-SUBURBREGULAR SCHOOL790 STUDENTS
A-
allk12 Grade
Scored higher than 76% of New York public middle schools
  • A-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • B+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.

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 middle schools

Enrollment
790
Middle
DISTRICT 739 · STATE 531
Student : Teacher
10.7:1
74 FTE teachers
DISTRICT 11.1:1 · STATE 10.3:1
Free / Reduced Lunch
26%
206 students
DISTRICT 22% · STATE 58%
Community
1
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 521227%
Grade 616821%
Grade 718624%
Grade 821027%
Ungraded142%
Student demographics
41%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 48% · STATE 72% · US 70%
White
60176%
DISTRICT 70% · STATE 39% · US 43%
Hispanic
446%
DISTRICT 5% · STATE 31% · US 30%
Black
365%
DISTRICT 4% · STATE 16% · US 15%
Asian
759%
DISTRICT 16% · STATE 10% · US 6%
Two+
344%
DISTRICT 6% · STATE 4% · US 5%
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
Male
43755%
Female
35345%

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Test scores

NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)
English Language Arts
72.0%
NY avg 58.3% . +9.0pp since 2023
Math
75.9%
NY avg 57.4% . +6.3pp since 2023

What this means: On the NYS Assessments, New York's statewide test, about 72 of every 100 students at this school read and write at grade level and about 76 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are up about 9 points since 2023, while math scores are up about 6 points.

NYS Assessments results by year

School yearEnglish Language ArtsMath
2024-2572.0%75.9%
2023-2463.0%69.6%
% 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 · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
68.9%
composite math + reading, all grades
Predicted
65.4%
based on NY schools with similar FRL share
Beats by
+3.5pp
above demographic expectation

What this means: About 69% of students here test proficient in math and reading, compared with the roughly 65% typical for New York schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New York's top nor bottom 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 MILL MIDDLE SCHOOL

MILL MIDDLE SCHOOL's state test result (68.9% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
MILL MIDDLE SCHOOL this school79026.1%68.9%
JAMESVILLE-DEWITT MIDDLE SCHOOL
JAMESVILLE
69328.7%74.6%
HOWARD L GOFF SCHOOL
EAST GREENBUSH
94828.1%74.0%
WELLWOOD MIDDLE SCHOOL
FAYETTEVILLE
65123.0%78.3%
HEIM MIDDLE SCHOOL
WILLIAMSVILLE
64826.2%69.7%
ACADIA MIDDLE SCHOOL
CLIFTON PARK
76125.2%77.9%
Matched among New York middle 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 MILL MIDDLE SCHOOL ranks

Among middle schools
MeasureThis schoolIn New YorkIn Erie County
State test proficiency
ranked highest first
68.9%#157 of 766#8 of 32
Math proficiency
ranked highest first
75.9%#224 of 768
▲ 43
#10 of 32
▲ 1
Reading proficiency
ranked highest first
72.0%#93 of 768
▲ 37
#3 of 32
▲ 4
Enrollment
ranked largest first
790#166 of 796#8 of 32
Students per teacher
ranked fewest first
10.7:1#405 of 683#20 of 31
Diversity index
ranked most diverse first
40.5%#453 of 688#15 of 31
Free and reduced lunch
ranked highest share first
26.1%#653 of 773#24 of 32
Enrollment change since 2017-18
ranked steepest decline first
-6.0%#402 of 524#15 of 21
Ranked against other public middle 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 2024-25
Enrollment
790
+15 (+2%) vs 2020
-16% since 1990-91, when it was 942
Student : Teacher
10.7:1
was 9.9:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2579073.910.7:126% (206)
2023-2472773.19.9:127% (195)
2022-2377474.910.3:128% (213)
2020-21775789.9:123% (182)
2017-1884065.212.9:118% (153)
2015-168986513.8:117% (152)
2010-118816912.8:113% (114)
2000-017275712.8:16% (45)
1990-919427013.5:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for MILL MIDDLE SCHOOL.

About MILL MIDDLE SCHOOL

MILL MIDDLE SCHOOL is a medium-sized middle school in New York, located in WILLIAMSVILLE. It covers grades 5 through 8, with a total enrollment of 790 students. Enrollment is 49% higher than the average for middle schools in New York, which is about 531.

The district for MILL MIDDLE SCHOOL is WILLIAMSVILLE CENTRAL SCHOOL DISTRICT, with 13 schools and 9,598 students.

MILL MIDDLE SCHOOL is 76% White by enrollment. Other students are 9% Asian, 6% Hispanic, 5% Black, and 4% multiracial. The county population is about 74% White, within a few points of the school. Pick two students at random and there is a 41% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

MILL MIDDLE SCHOOL operates with 73.9 full-time-equivalent teachers, a ratio of about 10.7:1. That is close to the 10.3:1 average for middle schools in New York. About 26% of students at the school meet free or reduced-price lunch income limits. Compared with the 51% average for public schools in Erie County, the school's rate is lower.

allk12 grades MILL MIDDLE SCHOOL an A-. The grade compares the school only with New York public middle schools, because each state gives its own test.

The allk12 BeatsExpectations score for MILL MIDDLE SCHOOL is +3.5 points: 68.9% actual, 65.4% predicted.

According to the American Community Survey, in Erie County, the median household income is $72,839, 38% of adults hold a bachelor's degree or higher, and about 9% of people live in poverty. MILL MIDDLE SCHOOL is one of 226 public schools in the county.

The closest public school to MILL MIDDLE SCHOOL is WILLIAMSVILLE SOUTH HIGH SCHOOL, about 0.9 miles away. MILL MIDDLE SCHOOL is one of several public schools in the area, with at least 8 others within five miles. The school's 68.9% average proficiency ranks 8th among 9 nearby schools.

NCES lists the school's locale as Suburb: Large. That means it sits in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Compared with 2020-21, when it had 775 students, enrollment in 2024-25 was about the same at 790.

Community posts for MILL MIDDLE SCHOOL can cover school safety, transportation, and start times. Questions from prospective families are welcome too.

Erie County at a glance

View full county profile
Population
950,622
Census ACS
Median income
$72,839
Household, ACS
Bachelor's+
38%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
226
122,519 students

Quick facts

School name
MILL MIDDLE SCHOOL
District
WILLIAMSVILLE CENTRAL SCHOOL DISTRICT
Address
505 MILL ST, WILLIAMSVILLE, NY 14221
Phone
(716) 626-8300
County
Erie County
Level
Middle
Grade range
05–08
Total enrollment
790
Teachers (FTE)
74
Student–teacher ratio
10.7:1
Free and reduced lunch
206 (26%)
Locale
21-Suburb: Large
NCES ID
363147004216
Charter school
No
Virtual school
No

Related schools

Other schools in WILLIAMSVILLE CENTRAL SCHOOL DISTRICT
Other schools in WILLIAMSVILLE
Nearby schools

Frequently asked questions

About MILL MIDDLE SCHOOL
How many students attend MILL MIDDLE SCHOOL?
MILL MIDDLE SCHOOL enrolls approximately 790 students in grades 05-08.
What grades does MILL MIDDLE SCHOOL serve?
MILL MIDDLE SCHOOL serves grades 05-08.
How many teachers does MILL MIDDLE SCHOOL have?
MILL MIDDLE SCHOOL employs 74 FTE teachers, for a student-to-teacher ratio of 10.7:1.
How diverse is MILL MIDDLE SCHOOL?
MILL MIDDLE SCHOOL reports a student body of 76% White, 6% Hispanic, 5% Black, 9% Asian, 4% Two or more.
Who oversees MILL MIDDLE SCHOOL?
MILL MIDDLE SCHOOL is overseen by WILLIAMSVILLE CENTRAL SCHOOL DISTRICT in Erie County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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