Enrollment
240
Delaware · 2024-25 NCES data
Elementary school (grades K-5) · Hartly, DE
Federal NCES profile for Hartly Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
The verdict
Hartly Elementary School earns 45/100 on the Resource Investment Index, with class sizes smaller than 77% of Delaware schools.
Hartly Elementary School has class sizes smaller than 77% of Delaware schools. Computed live against every Delaware school reporting to NCES.
NCES ID 100019000053 Verify on NCES CCD record →
Enrollment
240
Delaware · 2024-25 NCES data
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
11.4:1
vs 13.9:1 Delaware avg
-18% vs state
How Hartly Elementary School compares with Delaware and U.S. medians
Smaller classes than state median
11.4:1 - 2.5 below the Delaware state median of 13.9:1, indicating smaller average class loads than typical schools in the state.
Hartly Elementary School is a small elementary school in Hartly, Delaware, enrolling 240 students.
Class sizes run a bit leaner than typical: 11.4:1 puts it in the smaller third of Delaware schools by student-teacher ratio.
This is a small campus: fewer students than 91% of Delaware schools, with 240 enrolled.
Its Resource Investment Index lands in the upper third of 222 scored Delaware schools.
Its student body is led by White (65%) and Hispanic or Latino (15%) (diversity index 53/100).
Counselor coverage is strong, about 240 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 37.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Capital School District spends $24,337 per pupil, 43% above the Delaware average, a better-resourced district than most.
Capital School District also operates Dover High School (1,812 students) and Central Middle School (860 students) alongside Hartly Elementary 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
Hartly Elementary School on the metrics families compare, against Delaware and U.S. means.
| Metric | This school | vs Delaware | Delaware avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.4:1 | ▼ 18% | 13.9:1 | 15.7:1 |
| Enrollment | 240 | top 91% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 65.0% of enrollment.
Simpson diversity index - at 53.4, Hartly Elementary School is less mixed than the Delaware school average of 61.3.
District-wide per-pupil expenditure for Capital School District, which includes Hartly Elementary School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Dover High School | Larger | No free-lunch data | Higher S:T ratio |
| Central Middle School | Larger | No free-lunch data | Higher S:T ratio |
| South Dover Elementary School | Larger | No free-lunch data | Higher S:T ratio |
| William Henry Middle School | Larger | No free-lunch data | Lower S:T ratio |
| Towne Point Elementary School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Hartly Elementary School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Delaware, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Hartly Elementary School's federal record.
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.
Hartly Elementary School has 240 students enrolled. It is an elementary school in Hartly, DE.
The student-teacher ratio at Hartly Elementary School is 11.4:1, which is 18% lower than the Delaware average of 13.9:1 and 27% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Hartly Elementary School is White at 65.0% of enrollment, in Hartly, DE. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.4/100.
Hartly Elementary School has a Resource Investment Index of 45/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Hartly Elementary School earns 45/100 on the Resource Investment Index, with class sizes smaller than 77% of Delaware schools. 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.
Besides Hartly Elementary School, Capital School District also operates Dover High School (1,812 students), Central Middle School (860 students), and South Dover Elementary School (577 students). See the Capital School District district page for the complete list.
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.
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PlainSchools, “Hartly Elementary School, Hartly DE.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/hartly-elementary-school-de
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