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Union County

Ohio · Public K-12

Union County, Ohio hosts 19 public K-12 schools and around 12,597 students, averaging roughly 663 per campus. Marysville Exempted Village runs the largest share. By level, that breaks down as 9 elementary, 5 middle, and 5 high schools.

7-year change in Union County

SY 2017-18 vs SY 2024-25
Total enrollment
12,597
+2,345 (+23%) vs SY 2017-18
School count
19
+2 (+12%) vs SY 2017-18
% White
74%
was 86%
% Hispanic
6%
was 2%
% Black
2%
was 1%
% Asian
13%
was 8%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
19
4 districts
Enrollment
12,597
NCES CCD
Median income
$112,322
Above Ohio avg
Free/reduced lunch
18.6%
Below Ohio avg
Elementary
9
4,840 students
Middle
5
3,115 students
High
5
4,642 students
Combined / other
0
schools
LARGEST DISTRICT
Marysville Exempted Village
5,781 students · 4 districts in Union County

County vs. school enrollment demographics

Left bar is the racial makeup of Union 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
White
85%
Hispanic
3%
Black
2%
Asian
5%
Two or more
6%
Native American
0%
Pacific Islander
0%
School enrollment
White
74%
Hispanic
6%
Black
2%
Asian
13%
Two or more
4%
Native American
0%
Pacific Islander
0%
Bachelor's+
39.2%
adults 25+
Poverty rate
3.6%
ACS 5-year
Unemployment
2.6%
civilian labor
Median age
39
24.1% under 18

Test scores in Union County

Latest 2024-25 ELA proficiency, 19 schools ranked. Ohio state average: 59.8%.

See all 19 schools in Union County ranked by score →

All schools (19)

LargestA-ZTop rated
NameCityLevelGradesEnrollmentRating
Dublin Jerome High SchoolDublinHigh09-122,075·
Marysville High SchoolMarysvilleHigh09-121,100·
Abraham Depp ElementaryPlain CityElementaryKG-05902·
Bunsold Middle SchoolMarysvilleMiddle07-08862·
Creekview Intermediate Elementary SchoolMarysvilleMiddle05-06846·
Eversole Run Middle SchoolPlain CityMiddle06-08837·
Marysville STEM Early College High SchoolMarysvilleHigh09-12692·
North Union Elementary SchoolRichwoodElementaryPK-05654·
Northwood ElementaryMarysvilleElementaryKG-04617·
Glacier Ridge ElementaryDublinElementaryKG-05559·
Navin Elementary SchoolMarysvilleElementaryPK-04531·
Edgewood Elementary SchoolMarysvilleElementaryKG-04487·
Fairbanks Elementary SchoolMilford CenterElementaryKG-05444·
Mill Valley Elementary SchoolMarysvilleElementaryKG-04403·
Fairbanks High SchoolMilford CenterHigh09-12390·
North Union High SchoolRichwoodHigh09-12385·
North Union Middle SchoolRichwoodMiddle06-08325·
Fairbanks Middle SchoolMilford CenterMiddle06-08245·
Raymond Elementary SchoolRaymondElementaryKG-04243·

Cities in Union County

Marysville8 schoolsMilford Center3 schoolsRichwood3 schoolsDublin2 schoolsPlain City2 schoolsRaymond1 school

About Union County

Union County is an average-sized county of about 67,324 residents in Ohio. Its public-school system hosts approximately 12,597 students across 19 schools.

Looking at the wider area, census numbers show the median household earns about $112,322 a year, 39% of adults hold a bachelor's degree or higher, and the poverty rate is around 4%. That income level is 61% above the Ohio median.

On the school-mix side, Union County consists of 9 elementary schools (4,840 students), 5 middle schools (3,115), and 5 high schools (4,642).

The largest single district in Union County is Marysville Exempted Village, which alone enrolls about 5,781 students.

Trend over the past 7 years. Across the same 7-year window, public-school enrollment climbed 23%: 10,252 students in SY 2017-18 versus 12,597 in SY 2024-25. Over that span, Union County added 2 schools, going from 17 to 19. On the demographic side, White enrollment moved from 86% to 74% over the same window.

In the discussion threads here, the community for Union 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

How many K-12 schools serve Union County?
There are 19 public K-12 schools in Union County, Ohio, with a combined enrollment of about 12,597.
How many high schools are in Union County?
Union County, Ohio has 5 public high schools, serving approximately 4,642 students.
How many middle schools are in Union County?
Union County, Ohio has 5 public middle schools, serving approximately 3,115 students.
How many elementary schools are in Union County?
Union County, Ohio has 9 public elementary schools, serving approximately 4,840 students.
What is the largest school district in Union County?
Marysville Exempted Village is the largest school district in Union County, serving approximately 5,781 students. The county contains 4 school districts overall.
What is the population of Union County?
Union County, Ohio has a population of approximately 67,324, with a median age of 39. About 24.1% of residents are under 18.
What is the median household income in Union County?
Median household income in Union County is $112,322, above the Ohio average of $69,789. About 3.6% of residents live below the federal poverty line.
How educated are residents of Union County?
Approximately 39.2% of adults 25 and older in Union County hold a bachelor's degree or higher, according to the Census ACS 5-year estimate.
What share of students in Union County qualify for free or reduced lunch?
Roughly 18.6% of students in Union County public schools qualify for free or reduced-price lunch, a common proxy for low-income enrollment. This is lower than the Ohio county average of 49.0%.
What is the student-teacher ratio in Union County schools?
Across Union County public schools, the enrollment-weighted student-teacher ratio is approximately 20.8 to 1.

Union County school rankings

Largest schoolsAll rankings →
DATA · Census ACS 5-year · NCES Common Core of Data