Total enrollment
44,100
+2,229 (+5%) vs SY 2020-21
Delaware County
Ohio · Public K-12
Ohio's Delaware County runs 59 public K-12 schools between its districts, the largest being Olentangy Local at 24,133 students. That works out to 37 elementary, 12 middle, and 10 high schools.
4-year change in Delaware County
SY 2020-21 vs SY 2024-25School count
59
+4 (+7%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Delaware County ranks
Among counties| Measure | This county | In Ohio | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 81.1% | #2 of 28 | N/A |
| Enrollment ranked largest first | 44,100 | #9 of 88 | #244 of 2,745 |
| Number of schools ranked most first | 59 | #13 of 88 | N/A |
| Students per teacher ranked fewest first | 18.6:1 | #78 of 88 | #2,504 of 2,655 |
| Free or reduced-price lunch share ranked highest first | 20.3% | #77 of 78 | #2,501 of 2,526 |
| Diversity index ranked most diverse first | 52.6% | #10 of 88 | #978 of 2,707 |
Counties need at least 3 schools and 1,000 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.
Delaware County school rankings
Residents
226,834
all ages · ACS 5-yr
Schools
59
7 districts
Enrollment
44,100
students · NCES CCD
Median income
$133,540
Above Ohio avg
Free/reduced lunch
20.3%
Below Ohio avg
Elementary
37
19,305 students
Middle
12
10,534 students
High
10
14,261 students
Combined / other
0
schools
LARGEST DISTRICT
Olentangy Local
24,133 students · 7 districts in Delaware County
County vs. school enrollment demographics
Left bar is the racial makeup of Delaware County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".
County residents
School enrollment
Bachelor's+
59.4%
adults 25+
Poverty rate
3.4%
ACS 5-year
Unemployment
3.0%
civilian labor
Median age
40
24.8% under 18
Test scores in Delaware County
Latest 2024-25 ELA proficiency, 54 schools ranked. Ohio state average: 59.8%.
Top 5 schools (ELA)
- Deer Run Elementary School· 97.2%
- Tyler Run Elementary School· 93.2%
- Olentangy High School· 90.4%
- Shale Meadows Elementary School· 90.2%
- Alcott Elementary School· 89.4%
Lowest 5 schools (ELA)
Cities in Delaware County
About Delaware County
Delaware County is a moderately sized Ohio county of about 226,834 residents, home to 59 public schools and roughly 44,100 students.
Stepping back, census numbers show the median household earns about $133,540 a year, roughly 59% of adults have completed at least a four-year degree, and the federal-poverty share is near 3%. That income level is 91% higher than the Ohio median.
For a sense of the school types, Delaware County is made up of 37 elementary schools (19,305 students), 12 middle schools (10,534), and 10 high schools (14,261).
Olentangy Local dominates the local landscape, accounting for roughly 24,133 students on its own.
Trend over the past 4 years. Total public-school enrollment in Delaware County has grew 5% since SY 2020-21, moving from about 41,871 students to 44,100. Over that span, Delaware County gained 4 schools, going from 55 to 59.
In the discussion threads here, the community for Delaware County discusses enrollment trends, district policy changes, and bus-route updates. Parents, students, and educators in the area can post or comment.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data