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Sussex Montessori School

Public, Charter Grades K-6
87th
SchoolDigger Rank ?
of 107 Delaware Elementary Schools
Better than 19% of Delaware elementary schools
Summary

Sussex Montessori School is a small public charter elementary school in Seaford, DE, serving 383 students in grades K-6 and operating as its own district, which is currently ranked in the bottom 20% of Delaware districts. The school implements the Montessori method, which emphasizes student-led learning and hands-on activities, but its academic outcomes are currently well below state averages and significantly lower than those of nearby traditional public schools.

In the most recent testing year, English Language Arts proficiency ranged from 13.3% in 3rd grade to 30% in 5th grade, compared to a state average of roughly 40-46%. Math proficiency was even lower, ranging from 11.7% to 18.2%, versus a state average of 31-43%. The contrast with Frederick Douglass Elementary School, located just 1.9 miles away, is striking—Frederick Douglass posted ELA proficiency rates of 43-48% and math rates of 36-48%, roughly two to four times higher. Even Laurel Elementary School, also ranked in the bottom 20% statewide, outperforms Sussex Montessori in most subjects. The school's student-to-teacher ratio of 23.9 is also notably higher than nearby schools like Georgetown Elementary School (13.7) and Frederick Douglass (13.4), which may limit the individualized attention that is central to the Montessori philosophy.

There are some encouraging signs. Chronic absenteeism dropped dramatically from 34.8% in 2023-2024 to 15.6% in 2024-2025, now below the state average, and the school's state ranking improved from the 6th to the 18th percentile. Performance varies by grade level—5th grade ELA proficiency (30%) was more than double the 3rd grade rate (13.3%)—suggesting some cohorts are stronger than others. While the school faces significant academic challenges, the recent attendance improvements and slight upward trend in rankings offer a glimmer of hope for families considering this Montessori option in Seaford.

383
Students ?
23.9
Student/teacher ratio ?
 24960 Dairy Lane
       Seaford, DE  19973

(302) 404-5367

District: Sussex Montessori School

Racial breakdown:

White:
52.2%
African American:
24.8%
Hispanic:
13.6%
more
 See top rated Delaware elementary schools

 Compare Sussex Montessori School to nearby elementary schools!
At a glance
▬ Ranking trend: Holding steady — 19th percentile in 2022 → 19th in 2026
Worth a look
!Test scores below the Delaware average (23% vs 41% meeting standards)
!In the lower quartile statewide (19th percentile)
!Mathematics scores 23 pts below the Delaware average
Students meeting standards (2025-2026) ?
This school23%
District avg23%
Delaware avg41%
87th of 107
Delaware public elementary schools ?
Bottom 19%▼ down 1 pts since 2022
See the entire ranking list of Delaware Elementary Schools →
★★★★★
SchoolDigger rating ?
29th of 34Sussex Montessori School among Delaware districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankDelaware percentileRating
202616.387 of 10718.7%★☆☆☆☆
20259.2102 of 1096.4%☆☆☆☆☆
202422.182 of 10622.6%★☆☆☆☆
202314.092 of 10310.7%★☆☆☆☆
202218.384 of 10419.2%★☆☆☆☆

Female

YearAvg scoreStatewide rankDelaware percentileRating
202615.483 of 9815.3%★☆☆☆☆
202417.383 of 9714.4%★☆☆☆☆
20236.688 of 891.1%☆☆☆☆☆

Male

YearAvg scoreStatewide rankDelaware percentileRating
202620.084 of 9814.3%★☆☆☆☆
202432.466 of 9732.0%★★☆☆☆
202310.883 of 896.7%☆☆☆☆☆

White

YearAvg scoreStatewide rankDelaware percentileRating
20268.175 of 783.8%☆☆☆☆☆
20251.977 of 770.0%☆☆☆☆☆
202414.169 of 735.5%☆☆☆☆☆
20237.569 of 701.4%☆☆☆☆☆
202210.572 of 754.0%☆☆☆☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Female (2026)15th percentile-3 vs school
Male (2026)14th percentile-4 vs school
White (2026)4th percentile-15 vs school
By subject vs Delaware (2025-2026) ?
Social Studies32%-18 vs state
Science24%-6 vs state
English Language Arts23%-18 vs state
Mathematics15%-23 vs state

★
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Frequently Asked Questions about Sussex Montessori School

Students at Sussex Montessori School are 52% White, 25% African American, 14% Hispanic, 9% Two or more races.

In the 2024-25 school year, 383 students attended Sussex Montessori School.

Sussex Montessori School ranks in the bottom 18.7% of Delaware elementary schools.

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Latest Delaware data All new data »
2023–24 through 2024–25 graduation ratesNewSep 29, 2026
2025–26 DeSSA, SAT & Smarter Balanced Assessments scoresAug 18, 2026
2024–25 school spending dataMar 23, 2026
2024–25 attendance dataJan 20, 2026


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Delaware Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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