Enrollment
158
High
DISTRICT 183 · STATE 468
SCHOOL COMMUNITY·NORTH LINN COMM SCHOOL DISTRICT·NCES 192082001243
North-Linn Senior High School
3033 Lynx Drive, Troy Mills, IA 52344 · (319) 224-3291 · Linn County
GRADES 09–12HIGH42-RURALREGULAR SCHOOL158 STUDENTS
B+
allk12 Grade
Scored higher than 66% of Iowa public high schools
- B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- BBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Iowa public high schools
Student : Teacher
11.8:1
13 FTE teachers
DISTRICT 13.2:1 · STATE 17.3:1
Free / Reduced Lunch
25%
39 students
DISTRICT 24% · STATE 41%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 40 | 25% |
| Grade 10 | 36 | 23% |
| Grade 11 | 44 | 28% |
| Grade 12 | 38 | 24% |
Student demographics
9%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 9% · STATE 48% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within North Linn Comm School District. Attendance zones can vary; confirm enrollment with the district.
QUIET COMMUNITY
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START A DISCUSSIONTest scores
ISASP 2024-25 . % ProficientEnglish Language Arts
88.6%
IA avg 73.6% . -0.2pp since 2023
Math
76.3%
IA avg 70.9% . +1.3pp since 2023
What this means: On the ISASP, Iowa's statewide test, about 89 of every 100 students at this school read and write at grade level and about 76 of 100 do math at grade level. Across all Iowa schools, those numbers are about 74 and 71. Reading and writing scores have held steady since 2023, while math scores are up about 1 points.
ISASP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 88.6% | 76.3% |
| 2023-24 | 88.8% | 75.0% |
% Proficient, all students and all tested grades.
Source: ISASP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
78.8%
composite math + reading, all grades
Predicted
79.6%
based on IA schools with similar FRL share
Beats by
-0.8pp
below demographic expectation
What this means: About 79% 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 →
Schools most like North-Linn Senior High School
North-Linn Senior High School's state test result (78.8% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| North-Linn Senior High School this school | 158 | 24.7% | 78.8% |
| Stanton High School Stanton | 153 | 26.1% | 76.3% |
| St Ansgar High School St Ansgar | 166 | 23.5% | 84.6% |
| Lynnville-Sully High School Sully | 160 | 22.5% | 84.0% |
| Springville Secondary School Springville | 184 | 23.9% | 78.8% |
| Clarksville High School Clarksville | 125 | 27.2% | 79.5% |
Matched among Iowa high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where North-Linn Senior High School ranks
Among high schools| Measure | This school | In Iowa | In Linn County |
|---|---|---|---|
| State test proficiency ranked highest first | 78.8% | #82 of 313 | #5 of 14 |
| Math proficiency ranked highest first | 76.3% | #103 of 314 ▼ 4 | #5 of 14 no change |
| Reading proficiency ranked highest first | 88.6% | #22 of 314 no change | #2 of 14 ▼ 1 |
| Enrollment ranked largest first | 158 | #299 of 340 | #14 of 15 |
| Free and reduced lunch ranked highest share first | 24.7% | #254 of 320 | #9 of 15 |
| Enrollment change since 2017-18 ranked steepest decline first | -24.0% | #13 of 125 | #1 of 6 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
158
-34 (-18%) vs 2020
-25% since 1990-91, when it was 211
Student : Teacher
11.8:1
was 13.7:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 158 | 13.3 | 11.8:1 | 25% (39) |
| 2023-24 | 157 | 14.2 | 11.1:1 | 25% (39) |
| 2022-23 | 166 | 15.3 | 10.9:1 | 24% (40) |
| 2020-21 | 192 | 14 | 13.7:1 | 10% (19) |
| 2017-18 | 208 | 15.8 | 13.2:1 | 19% (40) |
| 2015-16 | 199 | 17 | 11.7:1 | 25% (49) |
| 2010-11 | 222 | 20 | 11.1:1 | 22% (48) |
| 2000-01 | 224 | 18 | 12.4:1 | 11% (25) |
| 1990-91 | 211 | 19 | 11.1:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for North-Linn Senior High School.
Since 2017-18: students down 24% (208 to 158); teachers down 16% (15.8 to 13.3).
About North-Linn Senior High School
Among the schools in Troy Mills, Iowa, is North-Linn Senior High School, a very small high school. The school offers grades 9 through 12 and enrolls 158 students. High schools in Iowa average about 468 students, which makes this school 66% below average.
Enrollment across the 3 schools in North Linn Comm School District totals 550 students.
By race and ethnicity, North-Linn Senior High School is 96% White. Next come 3% multiracial. The county population is about 84% White. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 9%.
The student-to-teacher ratio at North-Linn Senior High School is 11.8:1, based on 13.3 full-time-equivalent teachers. The average for high schools in Iowa is 17.3:1, so this school has fewer students per teacher. North-Linn Senior High School counts 25% of students as eligible for free or reduced-price lunch. Across public schools in Linn County, the average is 40%.
On the allk12 Grade, North-Linn Senior High School lands at B+, ahead of 66% of Iowa public high schools.
North-Linn Senior High School posts an average proficiency rate across its state test results of 78.8%, compared with a predicted 79.6%. It is not in the top or bottom 10% of Iowa schools on BeatsExpectations.
In Linn County, where the school is located, median household income comes to about $77,649, about 35% of adults have at least a bachelor's degree, and the poverty rate is about 6%. The county has 83 public schools and about 36,480 students.
The closest school to North-Linn Senior High School is North-Linn Middle School, located less than a tenth of a mile away. In all, 2 other public schools sit within five miles of North-Linn Senior High School. In a group of 8 nearby schools with scores, North-Linn Senior High School ranks 5th on average proficiency.
For locale, NCES codes North-Linn Senior High School as Rural: Distant.
In 2020-21, North-Linn Senior High School enrolled 192 students. By 2024-25, that number had fallen to 158. There were fewer students per teacher in 2024-25 (11.8:1) than in 2020-21 (13.7:1).
This community page is for conversations about fundraisers, report cards, and school supplies. You can also rate the school on this page.
Linn County at a glance
View full county profilePopulation
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
Related schools
Other schools in North Linn Comm School District
- North Linn ElementaryElementary · 281 students
- North-Linn Middle SchoolMiddle · 111 students
Other schools in Troy Mills
- North Linn ElementaryElementary · 281 students
- North-Linn Middle SchoolMiddle · 111 students
Nearby schools
- North-Linn Middle School0.0 mi · 111
- North Linn Elementary0.0 mi · 281
- Central City High School9.0 mi · 200
- Central City Elementary School9.0 mi · 170
- Center Point-Urbana Middle School9.5 mi · 290
- Center Point-Urbana Primary School9.7 mi · 365
Frequently asked questions
About North-Linn Senior High SchoolWhat is the total enrollment at North-Linn Senior High School?
North-Linn Senior High School enrolls approximately 158 students in grades 09-12.
What age range does North-Linn Senior High School serve?
North-Linn Senior High School serves students from grade 09 through grade 12.
How many teachers does North-Linn Senior High School have?
North-Linn Senior High School employs 13 FTE teachers, for a student-to-teacher ratio of 11.8:1.
What is the racial breakdown of students at North-Linn Senior High School?
At North-Linn Senior High School, the student body is approximately 96% White, 1% Hispanic, 1% Black, 3% Two or more.
Is North-Linn Senior High School public or private?
North-Linn Senior High School is a public K-12 school, overseen by North Linn Comm School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.