Enrollment
241
High
DISTRICT 248 · STATE 468
SCHOOL COMMUNITY·GRUNDY CENTER COMM SCHOOL DISTRICT·NCES 191329000801
Grundy Center High School
1006 M Ave, Grundy Center, IA 50638 · (319) 825-5449 · Grundy County
GRADES 09–12HIGH42-RURALREGULAR SCHOOL241 STUDENTS
A+
allk12 Grade
Scored higher than 99% of Iowa public high schools
- A+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- A+Beats 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
12.3:1
20 FTE teachers
DISTRICT 12.4:1 · STATE 17.3:1
Free / Reduced Lunch
32%
78 students
DISTRICT 32% · 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 | 55 | 23% |
| Grade 10 | 57 | 24% |
| Grade 11 | 70 | 29% |
| Grade 12 | 59 | 24% |
Student demographics
12%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 15% · 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 Grundy Center Comm School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
ISASP 2024-25 . % ProficientEnglish Language Arts
92.7%
IA avg 73.6% . +2.4pp since 2023
Math
87.3%
IA avg 70.9% . +2.8pp since 2023
What this means: On the ISASP, Iowa's statewide test, about 93 of every 100 students at this school read and write at grade level and about 87 of 100 do math at grade level. Across all Iowa schools, those numbers are about 74 and 71. Reading and writing scores are up about 2 points since 2023, while math scores are up about 3 points.
ISASP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 92.7% | 87.3% |
| 2023-24 | 90.3% | 84.5% |
% Proficient, all students and all tested grades.
Source: ISASP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of IA schools after controlling for student poverty
Actual proficiency
88.6%
composite math + reading, all grades
Predicted
75.8%
based on IA schools with similar FRL share
Beats by
+12.8pp
above demographic expectation
What this means: About 89% of students here test proficient in math and reading, well above the roughly 76% typical for Iowa schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 13 points, placing it in Iowa's top 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 Grundy Center High School
Grundy Center High School's state test result (88.6% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Grundy Center High School this school | 241 | 32.4% | 88.6% |
| Dunkerton High School Dunkerton | 200 | 32.0% | 74.0% |
| Maquoketa Valley Senior High School Delhi | 206 | 32.0% | 82.7% |
| MFL MarMac High School Monona | 263 | 30.8% | 66.3% |
| AHSTW High School Avoca | 205 | 32.7% | 79.7% |
| Fremont-Mills Middle And Senior High School Tabor | 213 | 31.5% | 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 Grundy Center High School ranks
Among high schools| Measure | This school | In Iowa |
|---|---|---|
| State test proficiency ranked highest first | 88.6% | #6 of 313 |
| Math proficiency ranked highest first | 87.3% | #10 of 314 ▲ 10 |
| Reading proficiency ranked highest first | 92.7% | #9 of 314 ▲ 7 |
| Enrollment ranked largest first | 241 | #224 of 340 |
| Students per teacher ranked fewest first | 12.3:1 | #53 of 259 |
| Diversity index ranked most diverse first | 11.9% | #229 of 260 |
| Free and reduced lunch ranked highest share first | 32.4% | #184 of 320 |
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
241
+26 (+12%) vs 2020
+39% since 1990-91, when it was 173
Student : Teacher
12.3:1
was 10.2:1
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 | 241 | 19.5 | 12.3:1 | 32% (78) |
| 2023-24 | 247 | 20.1 | 12.3:1 | 30% (75) |
| 2022-23 | 235 | 19.7 | 11.9:1 | 29% (67) |
| 2020-21 | 215 | 21 | 10.2:1 | 27% (57) |
| 2017-18 | 198 | 22.6 | 8.8:1 | 22% (44) |
| 2015-16 | 201 | 14 | 14.4:1 | 26% (52) |
| 2010-11 | 199 | 20 | 9.9:1 | 23% (45) |
| 2000-01 | 259 | 19 | 13.6:1 | 17% (43) |
| 1990-91 | 173 | 16 | 10.8:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Grundy Center High School.
Since 2017-18: students up 22% (198 to 241); teachers down 14% (22.6 to 19.5).
About Grundy Center High School
Grundy Center High School is a low-enrollment high school in Grundy Center, Iowa, administered by Grundy Center Comm School District. It enrolls 241 students in 2024-25. The grades offered are 9 through 12. That is 49% below the average of about 468 students for high schools in Iowa.
Grundy Center Comm School District runs Grundy Center High School along with 2 other schools, enrolling 743 students in total.
At Grundy Center High School, 94% of students are White. Smaller groups are 4% multiracial. Census estimates put Grundy County at about 95% White, close to the school's figure. On the diversity index, which measures the chance that two random students are from different groups, Grundy Center High School scores 12%.
Its staff includes 19.5 full-time-equivalent teachers, for about 12.3 students per teacher. Compared with the 17.3:1 average for high schools in Iowa, this school's ratio is lower. Roughly 32% of students at Grundy Center High School can receive free or reduced-price lunch. The average for public schools in Grundy County is similar, at 32%.
Grundy Center High School holds an A+ allk12 Grade, placing it above 99% of Iowa public high schools.
A school in Iowa with Grundy Center High School's free or reduced-price lunch share would be expected to score about 75.8%. Grundy Center High School scores 88.6%.
American Community Survey estimates for Grundy County show that the median household earns about $87,205 a year, the share of adults with a bachelor's degree or higher is 28%, and roughly 4% of residents are in poverty. Across Grundy County, 11 public schools serve about 2,334 students.
Grundy Center Middle School is the nearest public school to Grundy Center High School, less than a tenth of a mile away. Grundy Center High School is one of several public schools in the area, with 2 others within five miles. Among 7 nearby schools that report test results, Grundy Center High School ranks 1st on proficiency.
The school's locale code, Rural: Distant, means it is in rural territory some distance from an urban area.
In 2024-25, the school enrolled 241, up from 215 in 2020-21. Students per teacher increased from 10.2 in 2020-21 to 12.3 in 2024-25.
The Grundy Center High School discussion page is a place for open houses, carpools, and field trips. You can also rate the school on this page.
Grundy County at a glance
View full county profilePopulation
12,384
Census ACS
Median income
$87,205
Household, ACS
Bachelor's+
28%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
11
2,334 students
Quick facts
Related schools
Other schools in Grundy Center Comm School District
- Grundy Center Elementary SchoolElementary · 283 students
- Grundy Center Middle SchoolMiddle · 219 students
Other schools in Grundy Center
- Grundy Center Elementary SchoolElementary · 283 students
- Grundy Center Middle SchoolMiddle · 219 students
Nearby schools
- Grundy Center Middle School0.0 mi · 219
- Grundy Center Elementary School0.3 mi · 283
- Gladbrook-Reinbeck Jr. High & High School9.5 mi · 207
- AGWSR Elementary at Wellsburg9.5 mi · 59
- AGWSR Middle School9.5 mi · 131
- Gladbrook-Reinbeck Elementary School9.7 mi · 262
Frequently asked questions
About Grundy Center High SchoolWhat is the total enrollment at Grundy Center High School?
Grundy Center High School enrolls approximately 241 students in grades 09-12.
Is Grundy Center High School an elementary, middle, or high school?
Grundy Center High School is a high school covering grades 09-12.
What is the student-teacher ratio at Grundy Center High School?
The student-to-teacher ratio at Grundy Center High School is approximately 12.3:1 (20 FTE teachers).
How diverse is Grundy Center High School?
Grundy Center High School reports a student body of 94% White, 1% Black, 4% Two or more.
Is Grundy Center High School public or private?
Grundy Center High School is a public K-12 school, overseen by Grundy Center Comm School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.