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Johnson County

Iowa · Public K-12

Johnson County is a Iowa county whose public-school system spans 43 campuses and approximately 20,019 students. Median household income runs about $74,935. By level, that breaks down as 30 elementary, 5 middle, and 7 high schools.

7-year change in Johnson County

SY 2017-18 vs SY 2024-25
Total enrollment
19,868
+1,305 (+7%) vs SY 2017-18
School count
42
+5 (+14%) vs SY 2017-18
% White
57%
was 64%
% Hispanic
12%
was 10%
% Black
20%
was 15%
% Asian
4%
was 5%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
43
4 districts
Enrollment
20,019
NCES CCD
Median income
$74,935
Above Iowa avg
Free/reduced lunch
36.9%
Below Iowa avg
Elementary
30
9,395 students
Middle
5
4,329 students
High
7
6,122 students
Combined / other
1
173 students
LARGEST DISTRICT
Iowa City Comm School District
15,111 students · 4 districts in Johnson County

County vs. school enrollment demographics

Left bar is the racial makeup of Johnson 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
76%
Hispanic
7%
Black
8%
Asian
6%
Two or more
8%
Native American
0%
Pacific Islander
0%
School enrollment
White
57%
Hispanic
13%
Black
20%
Asian
4%
Two or more
6%
Native American
0%
Pacific Islander
0%
Bachelor's+
55.2%
adults 25+
Poverty rate
7.2%
ACS 5-year
Unemployment
3.8%
civilian labor
Median age
31
19.3% under 18

Test scores in Johnson County

Latest 2024-25 ELA proficiency, 38 schools ranked. Iowa state average: 73.7%.

See all 38 schools in Johnson County ranked by score →

All schools (43)

NameCityLevelGradesEnrollmentRating
Iowa City High SchoolIowa CityHigh09-121,666·
West Senior High SchoolIowa CityHigh09-121,514·
Liberty High SchoolNorth LibertyHigh09-121,286·
Southeast Middle SchoolIowa CityMiddle06-081,269·
Northwest Middle SchoolCoralvilleMiddle06-081,113·
North Central Middle SchoolNorth LibertyMiddle06-08925·
Clear Creek Amana High SchoolTiffinHigh09-12800·
Clear Creek Amana Middle SchoolTiffinMiddle06-08702·
Penn Elementary SchoolNorth LibertyElementaryPK-05512·
Lakeview ElementarySolonElementaryPK-03490·
Solon High SchoolSolonHigh09-12471·
Herbert Hoover Elementary SchoolIowa CityElementaryPK-05464·
Weber ElementaryIowa CityElementaryPK-05456·
Ernest Horn Elementary SchoolIowa CityElementaryPK-05453·
East Ridge ElementaryCoralvilleElementary04-05442·
Alexander ElementaryIowa CityElementaryPK-05436·
Christine Grant ElementaryNorth LibertyElementaryPK-05426·
Norman Borlaug Elementary SchoolCoralvilleElementaryPK-05405·
James Van Allen Elementary SchoolNorth LibertyElementaryPK-05376·
Buford Garner ElementaryNorth LibertyElementaryPK-05344·
Central Elementary SchoolCoralvilleElementaryPK-05343·
Helen Lemme Elementary SchoolIowa CityElementaryPK-05340·
North Bend ElementaryNorth LibertyElementaryKG-03326·
Longfellow Elementary SchoolIowa CityElementaryPK-05325·
Solon Middle SchoolSolonMiddle06-08320·
Wickham ElementaryCoralvilleElementaryPK-05315·
Grant Wood Elementary SchoolIowa CityElementaryPK-05306·
Clear Creek Elementary SchoolOxfordElementaryPK-04278·
Kirkwood Elementary SchoolCoralvilleElementaryPK-05270·
Robert Lucas Elementary SchoolIowa CityElementaryPK-05245·
Lincoln Elementary SchoolIowa CityElementaryPK-05217·
Mark Twain ElementaryIowa CityElementaryPK-05213·
Horace Mann Elementary SchoolIowa CityElementaryPK-05207·
Lone Tree Middle-Senior High SchoolLone TreeHigh06-12205·
Lone Tree Elementary SchoolLone TreeElementaryPK-05196·
Solon IntermediateSolonElementary04-05196·
Tiffin ElementaryTiffinElementaryKG-01191·
Bohumil Shimek Elementary SchoolIowa CityElementaryPK-05181·
Elizabeth Tate Alt. High SchoolIowa CityHigh09-12180·
ICCSD Online Learning ProgramIowa CityCombinedKG-12173·
Oak Hill ElementaryTiffinElementary02-03173·
Hills Elementary SchoolHillsElementaryPK-06151·
Clipper Early Childhood AcademyTiffinElementaryPK-PK118·

Cities in Johnson County

Iowa City16 schoolsNorth Liberty7 schoolsCoralville6 schoolsTiffin5 schoolsSolon4 schoolsLone Tree2 schoolsHills1 schoolIowa City1 schoolOxford1 school

About Johnson County

Johnson County is a middle-population county of about 156,639 residents in Iowa. Its public-school system educates approximately 20,019 students across 43 schools.

In context, census numbers show the median household earns about $74,935 a year, 55% of adults hold a bachelor's degree or higher, and the federal-poverty share is near 7%. That income level is 5% higher than the Iowa median.

Looking at the level breakdown, Johnson County covers 30 elementary schools (9,395 students), 5 middle schools (4,329), 7 high schools (6,122), and 1 combined or other schools.

The largest single district in Johnson County is Iowa City Comm School District, which alone enrolls about 15,111 students.

Over the past 7-year window. Total public-school enrollment in Johnson County has climbed 7% since SY 2017-18, moving from about 18,563 students to 19,868. Over that span, Johnson County added 5 schools, going from 37 to 42. Demographically, the White share of enrollment declined from 64% to 57%.

On this page, the community for Johnson County discusses open enrollment windows, redistricting talk, and busing logistics. Discussions cut across districts, schools, and grade levels.

Frequently asked questions

How many public schools are in Johnson County?
Johnson County, Iowa has 43 public K-12 schools serving approximately 20,019 students.
How many high schools are in Johnson County?
Johnson County, Iowa has 7 public high schools, serving approximately 6,122 students.
How many middle schools are in Johnson County?
Johnson County, Iowa has 5 public middle schools, serving approximately 4,329 students.
How many elementary schools are in Johnson County?
Johnson County, Iowa has 30 public elementary schools, serving approximately 9,395 students.
What is the largest school district in Johnson County?
Iowa City Comm School District is the largest school district in Johnson County, serving approximately 15,111 students. The county contains 4 school districts overall.
How many people live in Johnson County?
Johnson County has roughly 156,639 residents according to the latest Census ACS 5-year estimate.
What is the median household income in Johnson County?
Median household income in Johnson County is $74,935, above the Iowa average of $71,592. About 7.2% of residents live below the federal poverty line.
How educated are residents of Johnson County?
Approximately 55.2% of adults 25 and older in Johnson County hold a bachelor's degree or higher, according to the Census ACS 5-year estimate.
What share of students in Johnson County qualify for free or reduced lunch?
Roughly 36.9% of students in Johnson County public schools qualify for free or reduced-price lunch, a common proxy for low-income enrollment. This is lower than the Iowa county average of 41.8%.
What is the student-teacher ratio in Johnson County schools?
Across Johnson County public schools, the enrollment-weighted student-teacher ratio is approximately 14.3 to 1.

Johnson County school rankings

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