Enrollment
383
Delaware · 2024-25 NCES data
2024-25 NCES data Elementary school (grades K-5) NCES 100006300387 Charter school
Sussex Montessori School — Seaford, DE
Federal NCES profile for Sussex Montessori School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 36/100.
👥 Class size 15
🌟 Gifted program 30
📋 Attendance 62
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Sussex Montessori School · Delaware
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
21.2:1
vs 14.1:1 Delaware avg
+50% vs state
Student-teacher ratio in context
How Sussex Montessori School compares with Delaware and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Sussex Montessori School reports 383 enrolled students to the National Center for Education Statistics (NCES) alongside 19.0 full-time-equivalent teachers, producing a 21.2:1 student-teacher ratio. That figure sits 50% above the Delaware state mean of 14.1:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 33% higher, a useful calibration for families comparing districts across state lines.
Chronic absenteeism — missing 10% or more of school days — stands at 15.4% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Sussex Montessori School spends $12,129 per pupil district-wide, below the Delaware average of $18,485 and below the national average of $19,490. Revenue comes 10.8% from local sources (property taxes), 67.1% from the state, and 22.1% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 36/100 (F), calculated from 3 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Sussex Montessori School compares
Cross-validating school-level NCES values against Delaware state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Delaware | Delaware avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.2:1 | ▲ 50% | 14.1:1 | 15.9:1 |
| Enrollment | 383 | top 26% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Staffing depth
21.2:1
students per teacher
— 50% above state mean
Top 99% in Delaware — lower ratio than 1% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
15.4%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Funding equity
$12,129
per pupil, district-wide
— below Delaware avg of $18,485
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 383 Top 26% in Delaware — larger than 74% of 223 state schools
Teachers (FTE) 19.0
Students per teacher 21.2:1 +50% vs state
Free-lunch eligible —
NCES ID 100006300387
Student demographics
White 52.2%
African American 24.8%
Hispanic or Latino 13.6%
Two or More 8.6%
Asian 0.8%
Largest group: White at 52.2% of enrollment.
Programs & staff
Counselors (FTE) 0.0
Discipline & special education
Chronically absent 15.4%
In-school suspensions 0
Out-of-school suspensions 0
Funding & spending
District-wide per-pupil expenditure for Sussex Montessori School, which includes Sussex Montessori School.
$12,129
Per student
-34%
vs Delaware
Avg $18,485
-38%
vs U.S.
Avg $19,490
Revenue mix
Local 10.8%
State 67.1%
Federal 22.1%
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.
Similar elementary schools in Seaford
3 comparable elementary schools (grades K-5) serving the same city.
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Sussex Montessori School
How many students attend Sussex Montessori School?
Sussex Montessori School has 383 students enrolled. It is a elementary school in Seaford, DE.
What is the student-teacher ratio at Sussex Montessori School?
The student-teacher ratio at Sussex Montessori School is 21.2:1, which is 50% higher than the Delaware average of 14.1:1 and 33% higher than the national average of 15.9:1.
What is the racial and ethnic makeup of Sussex Montessori School?
The largest demographic group at Sussex Montessori School is White at 52.2%. The school serves a diverse student body in Seaford, DE.
What is the Resource Investment Index for Sussex Montessori School?
Sussex Montessori School has a Resource Investment Index of 36/100 (F) based on 3 factors: student-teacher ratio, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.