Enrollment
1,274
New York · 2024-25 NCES data
Elementary school (grades K-5) · Lancaster, NY
William Street School
Federal NCES profile for William Street School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
2024-25 NCES dataElementary school (grades K-5)NCES 361668003289
👥 S:T ratio 45
🌟 Gifted program 30
📋 Attendance 67
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
William Street School earns 47/100 on the Resource Investment Index, with class sizes larger than 79% of New York schools. It is also one of the largest schools in New York.
- #4 of 4
- elementary schools in Lancaster · Resource Index
- 47
- Resource Index · Typical
- 13.8:1
- large classes for New York
- 21.2%
- free-lunch eligible
William Street School has class sizes larger than 79% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, William Street School ranks #4 of 4 elementary schools in Lancaster, NY.
School address
District: Lancaster Central School District · New York
NCES ID 361668003289 Verify on NCES CCD record →
Teachers (FTE)
92.0
Federal CCD staff survey
Students per teacher
13.8:1
vs 11.8:1 New York avg
+17% vs state
Free-lunch eligible
21.2%
vs 56.2% New York avg
-62% vs state
Student-teacher ratio in context
How William Street School compares with New York and U.S. medians
What stands out at William Street School
William Street School is a large elementary school in Lancaster, New York, enrolling 1,274 students.
Class loads run somewhat heavier than typical: 13.8:1 puts it in the larger third of New York schools by student-teacher ratio.
Comparatively few students face economic hardship here, 21.2% free-meal eligibility runs 62% below the New York average.
By headcount it is one of the larger campuses in New York, bigger than 96% of state schools at 1,274 students.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Against 215 statewide peers matched on enrollment and economic need, it ranks mid-pack at #113.
Its student body is predominantly White (90% of enrollment), among the less diverse in the state (diversity index 18/100).
13.3% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Lancaster Central School District spends $18,668 per pupil, 29% below the New York average, a leaner-resourced district than most.
Lancaster Central School District also operates Lancaster High School (1,682 students) and Lancaster Middle School (876 students) alongside William Street School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How William Street School compares
William Street School on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.8:1 | ▲ 17% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 21.2% | ▼ 62% | 56.2% | 51.7% |
| Enrollment | 1,274 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.8:1
Leaner classes than 59% of US schools, a middle-of-the-pack class size.
1,274
Bigger than 95% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
21.2%
free-lunch eligible
- 62% below the New York average of 56.2%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
13.8:1
students per teacher
- 17% above state mean
Top 79% in New York - lower ratio than 21% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
13.3%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$18,668
per pupil, district-wide
- below New York avg of $26,410
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
1
in-school suspensions + 1 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 0.2 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 90.4%
Hispanic or Latino 3.5%
Two or More 2.3%
Asian 2.0%
African American 1.6%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 90.4% of enrollment.
Student-body diversity index 18.0/100
Simpson diversity index - at 18.0, William Street School is less mixed than the New York school average of 45.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Lancaster Central School District, which includes William Street School.
$18,668
Per student
-29%
vs New York
Avg $26,410
+13%
vs U.S.
Avg $16,593
Revenue mix
Local 51.8%
State 38.5%
Federal 9.6%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How William Street School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lancaster High School | Larger | Similar economic need | Similar S:T ratio |
| Lancaster Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Hillview Elementary School | Smaller | Lower economic need | Similar S:T ratio |
| John a Sciole Elementary School | Smaller | Similar economic need | Lower S:T ratio |
| Como Park Elementary School | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to William Street School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,682
- Students per teacher
- 12.6:1
- Resource Index
- 49/100
- Enrollment
- 876
- Students per teacher
- 12.2:1
- Resource Index
- 44/100
- Enrollment
- 451
- Students per teacher
- 13.3:1
- Resource Index
- 54/100
- Enrollment
- 401
- Students per teacher
- 12.2:1
- Resource Index
- 47/100
- Enrollment
- 352
- Students per teacher
- 12.1:1
- Resource Index
- 48/100
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,274 students)
Next steps
Verify locally before acting on William Street School's federal record.
- Compare William Street School against another school. Compare schools
- Lancaster Central School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about William Street School
How many students attend William Street School?
William Street School has 1,274 students enrolled. It is an elementary school in Lancaster, NY.
What is the student-teacher ratio at William Street School?
The student-teacher ratio at William Street School is 13.8:1, which is 17% higher than the New York average of 11.8:1 and 12% lower than the national average of 15.7:1.
What percentage of students receive free lunch at William Street School?
21.2% of students at William Street School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of William Street School?
The largest demographic group at William Street School is White at 90.4% of enrollment, in Lancaster, NY.
What is the Resource Investment Index for William Street School?
William Street School has a Resource Investment Index of 47/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does William Street School rank among elementary schools in Lancaster?
By Resource Investment Index, William Street School ranks #4 of 4 elementary schools in Lancaster, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Lancaster on the city page.
Is William Street School a good school?
William Street School earns 47/100 on the Resource Investment Index, with class sizes larger than 79% of New York schools. It is also one of the largest schools in New York. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Lancaster Central School District?
Besides William Street School, Lancaster Central School District also operates Lancaster High School (1,682 students), Lancaster Middle School (876 students), and Hillview Elementary School (451 students). See the Lancaster Central School District district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.