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Excellent

#3 of 219 schools in DE

Top 1% in state

Marbrook Elementary School

Elementary School · Red Clay Consolidated School District · Wilmington, DE

A Red Clay Consolidated School District elementary school where students score 9 points above what's typical for similar communities.

2101 Centerville Road, Wilmington, DE 19808

  • Math 42% vs DE 38% (2025)
  • Reading 48% vs DE 42% (2025)
  • 12:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress9.8Excellent50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data17
Annual Change+1.07 pts/yr
Data Period2009–2025
TrendImproving
Academics8.4Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency42.1% (2025 DESSA)
Reading/ELA Proficiency47.4% (2025 DESSA)
Math vs. State Avg-12.3 pts
Reading vs. State Avg-7.7 pts
Overall Proficiency45% (2025 DESSA, Math+ELA)
Expected (poverty-adj.)36% (model expectation from 2025 DESSA)
vs. Expected+8.6 pts
Adjusted Percentile75th
Resources & Environment9.2Excellent20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio12:1
District spending per student$22,094
Chronic Absenteeism19.7%

Students at Marbrook Elementary School score 45% proficient, which is above what's typical for similar communities (expected: 36%).

How we calculate scores →

2025 DESSA proficiency

Most recent published year. School vs. DE average.

Math Proficiency42%(2025 DESSA)
School
State
38%(2025 DESSA)
ELA Proficiency48%(2025 DESSA)
School
State
42%(2025 DESSA)

Trend

→ Steady

Proficiency is down 19 points across the 17-year record (2009–2025) and has held near 45% recently.

Show all 17 years
2009
Math
64%
ELA
64%
2010
Math
36%
ELA
30%
2011
Math
48%
ELA
52%
2012
Math
47%
ELA
54%
2013
Math
65%
ELA
64%
2014
Math
27%
ELA
38%
2015
Math
28%
ELA
38%
2016
Math
31%
ELA
39%
2017
Math
40%
ELA
49%
2018
Math
46%
ELA
55%
2019
Math
45%
ELA
56%
2020*
Math
22%
ELA
37%
2021*
Math
23%
ELA
38%
2022
Math
43%
ELA
53%
2023
Math
43%
ELA
56%
2024
Math
46%
ELA
48%
2025
Math
42%
ELA
48%

Multi-year averages used by the rating model: math 39% (multi-year average, 2009-2025) · reading/ELA 48% (multi-year average, 2009-2025)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 90 test records from DE state assessments and EdFacts (NCES).

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Marbrook Elementary School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Philadelphia map →

Getting around & local context

  • Walk 29Car-Dependent
  • Bike 42Somewhat Bikeable
  • City Safety: High4,289/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Wilmington), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$92,883

Median home value

$309,700

Median rent

$1,357/mo

College educated

41.1%

Homeownership

79.1%

Poverty rate

5.6%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 19808; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Gateway Charter SchoolCharter · enrollment unverified6.8K–80.5 mi191Compare →
Mote (anna P.) Elementary SchoolEnrollment path unverified6.4K–50.8 mi324Compare →
Baltz (austin D.) Elementary SchoolEnrollment path unverified7.2K–51.4 mi528Compare →
Brandywine Springs SchoolEnrollment path unverified5.5K–81.5 mi932Compare →

Distance is proximity only; it is not attendance eligibility.

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Red Clay Consolidated School District

Schools in district
28
Rank in district
#1 of 26
District spending per student
$22,094NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
12.5%Census SAIPE · 2024

Marbrook Elementary School is listed in Red Clay Consolidated School District; a district label does not verify attendance for an address.

About Marbrook Elementary School

Marbrook Elementary School is a public elementary school in Wilmington, DE, part of Red Clay Consolidated School District, serving approximately 431 students in grades Kindergarten-5th with a 12:1 student-teacher ratio. It holds a MySchoolScout rating of 9.3 out of 10 and ranks #3 of 219 schools in DE. State assessment records show 39% math proficiency (multi-year average, 2009-2025) and 48% reading/ELA proficiency (multi-year average, 2009-2025).

Frequently asked questions

Common questions about Marbrook Elementary School

What grades does Marbrook Elementary School serve?

Marbrook Elementary School serves students in grades Kindergarten through 5th.

How many students attend Marbrook Elementary School?

Marbrook Elementary School has an enrollment of approximately 431 students.

What is the student-teacher ratio at Marbrook Elementary School?

The student-teacher ratio at Marbrook Elementary School is 12:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Marbrook Elementary School rank in DE?

Marbrook Elementary School ranks #3 of 219 schools in DE.

What is Marbrook Elementary School's MySchoolScout rating?

Marbrook Elementary School has a current MySchoolScout rating of 9.3 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Marbrook Elementary School?

Based on loaded state assessment records, Marbrook Elementary School has 39% math proficiency (multi-year average, 2009-2025) and 48% reading/ELA proficiency (multi-year average, 2009-2025).

Is Marbrook Elementary School a charter school?

No, Marbrook Elementary School is not a charter school. It is a traditional public school operated by the local school district.

Is Marbrook Elementary School a Title I school?

No, Marbrook Elementary School is not currently a Title I school.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
Kindergarten – 5th
Enrollment
431
Student-Teacher Ratio
12:1
Teachers (FTE)
36
Type
regular
Setting
Large Suburb
County
New Castle County
Chronic Absenteeism (SY 2022-23)
19.7%
Area population (ZIP 19808)
38,334
Area average commute
24.2 min
Area median age
43.6
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2025 DESSA · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 DESSA. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2025 DESSA · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 DESSA. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
State assessments · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 19808; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24

About our data · How we calculate scores

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