1
Enrollment
632
High
DISTRICT 329 · STATE 468
SCHOOL COMMUNITY·OSKALOOSA COMM SCHOOL DISTRICT·NCES 192187001309
Oskaloosa High School
1816 N 3rd Extension, Oskaloosa, IA 52577 · (641) 673-3407 · Mahaska County
GRADES 09–12HIGH33-TOWNREGULAR SCHOOL632 STUDENTS
C
allk12 Grade
Scored higher than 25% of Iowa public high schools
- CTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- CBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
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
15.5:1
41 FTE teachers
DISTRICT 18.4:1 · STATE 17.3:1
Free / Reduced Lunch
38%
241 students
DISTRICT 41% · STATE 41%
Community
6
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 | 156 | 25% |
| Grade 10 | 182 | 29% |
| Grade 11 | 152 | 24% |
| Grade 12 | 142 | 22% |
Student demographics
25%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 27% · 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 Oskaloosa Comm School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
ISASP 2024-25 . % ProficientEnglish Language Arts
74.6%
IA avg 73.6% . -1.6pp since 2023
Math
65.6%
IA avg 70.9% . +0.4pp since 2023
What this means: On the ISASP, Iowa's statewide test, about 75 of every 100 students at this school read and write at grade level and about 66 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 2 points since 2023, while math scores have held steady.
ISASP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 74.6% | 65.6% |
| 2023-24 | 76.2% | 65.2% |
% 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
66.9%
composite math + reading, all grades
Predicted
72.9%
based on IA schools with similar FRL share
Beats by
-6.0pp
below demographic expectation
What this means: About 67% of students here test proficient in math and reading, compared with the roughly 73% 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 Oskaloosa High School
Oskaloosa High School's state test result (66.9% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Oskaloosa High School this school | 632 | 38.1% | 66.9% |
| Knoxville High School Knoxville | 508 | 37.8% | 68.6% |
| Glenwood Senior High School Glenwood | 570 | 36.8% | 75.2% |
| Clarinda High School Clarinda | 511 | 37.4% | 76.5% |
| Fairfield High School Fairfield | 442 | 36.9% | 71.2% |
| Nevada High School Nevada | 498 | 36.5% | 70.1% |
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 Oskaloosa High School ranks
Among high schools| Measure | This school | In Iowa |
|---|---|---|
| State test proficiency ranked highest first | 66.9% | #228 of 313 |
| Math proficiency ranked highest first | 65.6% | #220 of 314 ▼ 8 |
| Reading proficiency ranked highest first | 74.6% | #210 of 314 ▼ 33 |
| Enrollment ranked largest first | 632 | #73 of 340 |
| Students per teacher ranked fewest first | 15.5:1 | #181 of 259 |
| Diversity index ranked most diverse first | 24.6% | #116 of 260 |
| Free and reduced lunch ranked highest share first | 38.1% | #134 of 320 |
| Enrollment change since 2017-18 ranked steepest decline first | -10.0% | #60 of 125 |
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
632
-10 (-2%) vs 2020
+15% since 1990-91, when it was 548
Student : Teacher
15.5:1
was 15.7:1
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 | 632 | 40.7 | 15.5:1 | 38% (241) |
| 2023-24 | 620 | 40.8 | 15.2:1 | 40% (250) |
| 2022-23 | 600 | 40.5 | 14.8:1 | 36% (217) |
| 2020-21 | 642 | 41 | 15.7:1 | 34% (217) |
| 2017-18 | 702 | 43.4 | 16.2:1 | 43% (303) |
| 2015-16 | 705 | 45 | 15.7:1 | 39% (273) |
| 2010-11 | 709 | 43 | 16.5:1 | 39% (275) |
| 2000-01 | 676 | 41 | 16.5:1 | 27% (183) |
| 1990-91 | 548 | 40 | 13.7:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Oskaloosa High School.
Since 2017-18: students down 10% (702 to 632); teachers down 6% (43.4 to 40.7).
About Oskaloosa High School
In Oskaloosa, Iowa, Oskaloosa High School is a mid-sized high school. Students in grades 9 through 12 make up the school's enrollment of 632 students. By comparison, high schools in Iowa enroll about 468 students on average.
Oskaloosa Comm School District (5 schools, 2,073 students) runs Oskaloosa High School.
A large majority of enrollment at Oskaloosa High School is White, at 87%. Beyond that, enrollment is 5% Hispanic and 5% multiracial. On the diversity index, which measures the chance that two random students are from different groups, Oskaloosa High School scores 25%.
Oskaloosa High School has 40.7 full-time-equivalent teachers on staff and a student-to-teacher ratio of 15.5:1. By comparison, the average for high schools in Iowa is 17.3:1. At Oskaloosa High School, 38% of students qualify for free or reduced-price lunch in 2024-25. The average for public schools in Mahaska County is similar, at 38%.
On the allk12 Grade, Oskaloosa High School lands at C, ahead of 25% of Iowa public high schools.
Test results at Oskaloosa High School are 6.0 points below what its free or reduced-price lunch share predicts (66.9% actual, 72.9% predicted).
In Mahaska County, home to about 22,021 people, median household income comes to about $70,940, the share of adults with a bachelor's degree or higher is 24%, and roughly 8% of residents are in poverty. There are 8 public schools in the county, enrolling about 2,757, Oskaloosa High School among them.
Of the public schools around it, Oskaloosa High School is closest to Oskaloosa Virtual Academy, less than a tenth of a mile away. Inside a five-mile radius, there are 4 other public schools. The average proficiency across nearby scored schools is 73.7%; Oskaloosa High School's is 66.9%, ranking 5th of 7.
Federal records code the school's setting as Town: Remote.
There was little change in enrollment from 2020-21 (642) to 2024-25 (632).
This page is set up for the Oskaloosa High School community to discuss homework, tutoring, and testing dates. Current and former families are welcome to add their experience.
Mahaska County at a glance
View full county profilePopulation
22,021
Census ACS
Median income
$70,940
Household, ACS
Bachelor's+
24%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
8
2,757 students
Quick facts
Related schools
Other schools in Oskaloosa Comm School District
- Oskaloosa Elementary SchoolElementary · 903 students
- Oskaloosa Middle SchoolMiddle · 404 students
- Oskaloosa Early Childhood Center - PKElementary · 109 students
- Oskaloosa Virtual AcademyHigh · 25 students
Other schools in Oskaloosa
- Oskaloosa Elementary SchoolElementary · 903 students
- Oskaloosa Middle SchoolMiddle · 404 students
- Oskaloosa Early Childhood Center - PKElementary · 109 students
- Oskaloosa Virtual AcademyHigh · 25 students
Nearby schools
- Oskaloosa Virtual Academy0.1 mi · 25
- Oskaloosa Middle School0.1 mi · 404
- Oskaloosa Early Childhood Center - PK1.2 mi · 109
- Oskaloosa Elementary School1.3 mi · 903
- Eddyville Elementary10.3 mi · 274
- North Mahaska Jr-Sr High School10.4 mi · 275
Frequently asked questions
About Oskaloosa High SchoolHow large is Oskaloosa High School?
Oskaloosa High School enrolls approximately 632 students in grades 09-12.
What grades does Oskaloosa High School serve?
Oskaloosa High School serves grades 09-12.
How many students per teacher at Oskaloosa High School?
Approximately 15.5:1 students per teacher at Oskaloosa High School.
What is the student diversity at Oskaloosa High School?
Student demographics at Oskaloosa High School are roughly 87% White, 5% Hispanic, 2% Black, 2% Asian, 5% Two or more.
What district is Oskaloosa High School in?
Oskaloosa High School is part of Oskaloosa Comm School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.