Total enrollment
8,575
-1,220 (-12%) vs SY 2020-21
15 schools in Colonial School District
Delaware · 8,575 students · 2 cities
Colonial School District's public schools total 15 across the district, with enrollment of about 8,575 and an average school size near 572.
4-year change in Colonial School District
SY 2020-21 vs SY 2024-25School count
14
-1 (-7%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Colonial School District ranks
Among districts| Measure | This district | In Delaware | In the US |
|---|---|---|---|
| Enrollment ranked largest first | 8,575 | #6 of 17 | #1,090 of 9,234 |
| Number of schools ranked most first | 14 | #8 of 17 | N/A |
| Students per teacher ranked fewest first | 14.4:1 | #8 of 17 | #4,823 of 9,044 |
| Diversity index ranked most diverse first | 67.6% | #10 of 17 | #670 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside Colonial School District
Since 2017-18, the 14 district schools that reported both years went from 9,705 to 8,575 students (down 12%) and from 618 to 595 full-time teachers (down 4%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Penn (William) High School | New Castle | High | 09-12 | 2,069 |
| Wilbur (Kathleen H.) Elementary | Bear | Elementary | KG-05 | 1,052 |
| Bedford (Gunning) Middle School | New Castle | Middle | 06-08 | 846 |
| Southern Elementary School | New Castle | Elementary | KG-05 | 729 |
| Read (George) Middle School | New Castle | Middle | 06-08 | 662 |
| McCullough (Calvin R. ) Middle School | New Castle | Middle | 06-08 | 615 |
| Castle Hills Elementary School | New Castle | Elementary | KG-05 | 462 |
| Eisenberg (Harry O.) Elementary School | New Castle | Elementary | KG-05 | 436 |
| Pleasantville Elementary School | New Castle | Elementary | KG-05 | 389 |
| New Castle Elementary School | New Castle | Elementary | KG-05 | 383 |
| Downie (Carrie) Elementary School | New Castle | Elementary | KG-05 | 324 |
| Wilmington Manor Elementary School | New Castle | Elementary | KG-05 | 291 |
| The Colwyck Center | New Castle | Elementary | PK-PK | 222 |
| Leach (John G.) School | New Castle | Combined | PK-12 | 95 |
| The Wallace Wallin School | New Castle | High | UG-UG | 0 |
About Colonial School District
Colonial School District is a population-heavy public-school district in Delaware. The district operates 15 schools and teaches approximately 8,575 students.
Looking at the level breakdown, Colonial School District covers 9 elementary, 3 middle, 2 high schools, and 1 combined or other.
Trend over the past 4 years. Total public-school enrollment in Colonial School District has declined 12% since SY 2020-21, moving from about 9,795 students to 8,575. The school count fell from 15 to 14 across the same 4-year window.
In the discussion threads here, the community for Colonial School District discusses sports rivalries, cross-district programs, and shared facilities. Posts come from current and former families, staff, and alumni.