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SCHOOL COMMUNITY·LINN-MAR COMM SCHOOL DISTRICT·NCES 191722001004

Linn-Mar High School

3111 N 10th St, Marion, IA 52302 · (319) 447-3040 · Linn County
GRADES 09–12HIGH22-SUBURBREGULAR SCHOOL2,229 STUDENTS
Enrollment
2,229
High
DISTRICT 613 · STATE 468
Student : Teacher
17.1:1
130 FTE teachers
DISTRICT 14.2:1 · STATE 17.3:1
Free / Reduced Lunch
23%
514 students
DISTRICT 26% · STATE 41%
Community
3
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 9
577
Grade 10
554
Grade 11
561
Grade 12
537
Student demographics
White
1,65774%
DISTRICT 74% · STATE 70%
Hispanic
1366%
DISTRICT 6% · STATE 14%
Black
1517%
DISTRICT 6% · STATE 7%
Asian
1306%
DISTRICT 8% · STATE 2%
Two+
1296%
DISTRICT 6% · STATE 5%
Native American
40%
DISTRICT 0% · STATE 0%
Pacific Islander
50%
DISTRICT 0% · STATE 1%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1,16152%
Female
1,05147%

School pathway

Feeds from
Excelsior Middle School0708Oak Ridge Middle School0708
Based on grade levels within Linn-Mar Comm School District. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

ISASP 2024-25 . % Proficient
English Language Arts
76.8%
IA avg 73.6% . -3.0pp since 2023
Math
72.9%
IA avg 70.9% . -1.1pp since 2023

What this means: On the ISASP, Iowa's statewide test, about 77 of every 100 students at this school read and write at grade level and about 73 of 100 do math at grade level. Across all Iowa schools, those numbers are about 74 and 71. Reading and writing scores are down about 3 points since 2023, while math scores are down about 1 points.

Source: ISASP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
74.9%
composite math + reading, all grades
Predicted
80.4%
based on IA schools with similar FRL share
Beats by
-5.5pp
below demographic expectation

What this means: About 75% of students here test proficient in math and reading, compared with the roughly 80% typical for Iowa schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Iowa's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
2,229
+88 (+4%) vs 2017
Student : Teacher
17.1:1
was 17.0:1
% White
74%
was 82%
% Hispanic
6%
was 4%
% Black
7%
was 5%
% Asian
6%
was 5%
Source: NCES Common Core of Data

About Linn-Mar High School

Located at 3111 N 10th St, in Marion, Iowa, Linn-Mar High School is a substantial high school that instructs 2,229 students (grades 9 through 12), overseen by Linn-Mar Comm School District. By comparison, Iowa's public schools average about 468 students each, so Linn-Mar High School sits 376% above that benchmark.

Within Linn-Mar Comm School District, which oversees 12 schools and 7,361 students, Linn-Mar High School is one campus in the system.

For racial and ethnic makeup, Linn-Mar High School records that 74% of the student body identifies as White. Beyond that, the school reports 7% Black, 6% Hispanic, 6% Asian, 6% multiracial. By comparison, Linn County as a whole is about 84% White, so the school skews meaningfully less White than its surroundings.

Looking at school resources, The school lists 130 full-time-equivalent teachers, for a student-teacher ratio near 17.1:1. That tracks the state average closely. About 23% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is noticeably below Linn County's rate of about 40%.

With demographic context factored in, Linn-Mar High School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 80.4%, the actual is 74.9%, a residual of -5.5 points.

Zooming out to the county, ACS estimates for Linn County put median household earnings sit near $77,649, roughly 35% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. Across Linn County's 83 public schools (combined enrollment of about 36,480 students), Linn-Mar High School is one campus in the mix.

Nearest neighbor: Indian Creek Elementary School, around 0.3 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Linn-Mar High School comes 5th of 8 in the immediate cluster, below the nearby-schools average of 77.3%.

The school occupies a suburban site.

Over the past 7-year window. Over the past 7-year window, the student count climbed 4%: 2,141 students in 2018 compared to 2,229 in 2025. The White share of enrollment edged down from 82% to 74% over that span.

In the discussion threads here, members of the Linn-Mar High School community share and discuss open house dates, ride-share offers, and field-trip permission slips. Contributors range from current parents to recent graduates and teachers.

Linn County at a glance

View full county profile
Population
230,004
Census ACS
Median income
$77,649
Household, ACS
Bachelor's+
35%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
83
36,480 students

Quick facts

School name
Linn-Mar High School
District
Linn-Mar Comm School District
Address
3111 N 10th St, Marion, IA 52302
Phone
(319) 447-3040
County
Linn County
Level
High
Grade range
09–12
Total enrollment
2,229
Teachers (FTE)
130
Student–teacher ratio
17.1:1
Free/Reduced lunch
514 (23%)
Locale
22-Suburb: Mid-size
NCES ID
191722001004
Charter school
No
Virtual school
No

Related schools

Other schools in Linn-Mar Comm School District
Other schools in Marion
Nearby schools

Frequently asked questions

About Linn-Mar High School
How large is Linn-Mar High School?
Linn-Mar High School enrolls approximately 2,229 students in grades 09-12.
What grades does Linn-Mar High School serve?
Linn-Mar High School serves grades 09-12.
How many students per teacher at Linn-Mar High School?
Approximately 17.1:1 students per teacher at Linn-Mar High School.
How diverse is Linn-Mar High School?
Linn-Mar High School reports a student body of 74% White, 6% Hispanic, 7% Black, 6% Asian, 6% Two or more.
Who oversees Linn-Mar High School?
Linn-Mar High School is overseen by Linn-Mar Comm School District in Linn County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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