Enrollment
205
High
DISTRICT 238 · STATE 468
SCHOOL COMMUNITY·GMG COMM SCHOOL DISTRICT·NCES 190006000179
GMG Secondary School
306 Park Street, Garwin, IA 50632 · (641) 499-2005 · Tama County
GRADES 07–12HIGH42-RURALTITLE IREGULAR SCHOOL205 STUDENTS
C
allk12 Grade
Scored higher than 29% of Iowa public high schools
- C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-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
10.9:1
19 FTE teachers
DISTRICT 12.2:1 · STATE 17.3:1
Free / Reduced Lunch
51%
105 students
DISTRICT 52% · 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 7 | 37 | 18% |
| Grade 8 | 35 | 17% |
| Grade 9 | 31 | 15% |
| Grade 10 | 34 | 17% |
| Grade 11 | 30 | 15% |
| Grade 12 | 38 | 19% |
Student demographics
22%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 18% · 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 GMG Comm School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
ISASP 2024-25 . % ProficientEnglish Language Arts
75.8%
IA avg 73.6% . +1.6pp since 2023
Math
51.9%
IA avg 70.9% . -4.7pp since 2023
What this means: On the ISASP, Iowa's statewide test, about 76 of every 100 students at this school read and write at grade level and about 52 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 down about 5 points.
ISASP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 75.8% | 51.9% |
| 2023-24 | 74.2% | 56.6% |
% 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
63.8%
composite math + reading, all grades
Predicted
66.3%
based on IA schools with similar FRL share
Beats by
-2.6pp
below demographic expectation
What this means: About 64% of students here test proficient in math and reading, compared with the roughly 66% 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 GMG Secondary School
GMG Secondary School's state test result (63.8% proficient) is higher than 1 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| GMG Secondary School this school | 205 | 51.2% | 63.8% |
| West Harrison Middle School/High School Mondamin | 156 | 51.9% | 76.1% |
| Winfield-Mt Union Jr-Sr High School Winfield | 198 | 51.0% | 62.1% |
| Rockford Junior-Senior High School Rockford | 173 | 49.1% | 68.2% |
| Cardinal High School Eldon | 270 | 53.3% | 65.3% |
| Starmont High School Arlington | 174 | 49.4% | 71.8% |
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 GMG Secondary School ranks
Among high schools| Measure | This school | In Iowa |
|---|---|---|
| State test proficiency ranked highest first | 63.8% | #259 of 313 |
| Math proficiency ranked highest first | 51.9% | #291 of 314 ▼ 25 |
| Reading proficiency ranked highest first | 75.8% | #194 of 314 ▲ 13 |
| Enrollment ranked largest first | 205 | #251 of 340 |
| Students per teacher ranked fewest first | 10.9:1 | #17 of 259 |
| Diversity index ranked most diverse first | 22.5% | #130 of 260 |
| Free and reduced lunch ranked highest share first | 51.2% | #47 of 320 |
| Enrollment change since 2017-18 ranked steepest decline first | -10.5% | #55 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
205
-19 (-8%) vs 2020
-2% since 2000-01, when it was 209
Student : Teacher
10.9:1
was 11.8:1
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 | 205 | 18.8 | 10.9:1 | 51% (105) |
| 2023-24 | 210 | 20 | 10.5:1 | 44% (92) |
| 2022-23 | 211 | 19 | 11.1:1 | 45% (94) |
| 2020-21 | 224 | 19 | 11.8:1 | 43% (97) |
| 2017-18 | 229 | 17.5 | 13.1:1 | 35% (81) |
| 2015-16 | 232 | 18 | 12.9:1 | 31% (72) |
| 2010-11 | 221 | 20 | 11.1:1 | 28% (62) |
| 2000-01 | 209 | 20 | 10.4:1 | 22% (47) |
Source: NCES Common Core of Data. Rows are the federal collections on file for GMG Secondary School.
Since 2017-18: students down 10% (229 to 205); teachers up 8% (17.5 to 18.8).
About GMG Secondary School
At 306 Park Street in Garwin, Iowa, GMG Secondary School operates as a low-enrollment high school. The school covers grades 7 through 12 and reported 205 students in 2024-25. That puts enrollment 56% below the 468-student average for high schools in Iowa.
The district for GMG Secondary School is GMG Comm School District, with 2 schools and 476 students.
GMG Secondary School is 88% White by enrollment. Other reported shares: 5% Hispanic, 3% Black, and 3% multiracial. That compares with about 80% White among all Tama County residents. Measured by the diversity index, the student body scores 22%.
For every teacher at GMG Secondary School, there are about 10.9 students; the school has 18.8 full-time-equivalent teachers. Statewide, high schools in Iowa average 17.3:1. The eligibility rate for free or reduced-price meals is 51%.
GMG Secondary School holds a C allk12 Grade, placing it above 29% of Iowa public high schools.
The school's average proficiency rate across its state test results is 63.8%. For its free or reduced-price lunch share, the predicted value is 66.3%.
For the population of Tama County, median household income comes to about $70,781, roughly 21% of adults have a four-year degree or more, and the share of residents below the poverty line is 11%. Tama County counts 10 public schools with about 2,770 students.
Gladbrook-Reinbeck Preschool sits about 6.5 miles from GMG Secondary School. Inside a ten-mile radius, there are 7 other public schools. The school's 63.8% average proficiency ranks 3rd among 6 nearby schools.
Locale data from NCES put GMG Secondary School in rural territory some distance from an urban area (Rural: Distant).
By 2024-25, enrollment had dropped to 205, from 224 in 2020-21.
You can use this page to share news and ask questions about athletics, class schedules, and weather closures. Current and former families are welcome to add their experience.
Tama County at a glance
View full county profilePopulation
16,868
Census ACS
Median income
$70,781
Household, ACS
Bachelor's+
21%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
10
2,770 students
Quick facts
Related schools
Other schools in GMG Comm School District
- GMG Elementary SchoolElementary · 271 students
Nearby schools
- Gladbrook-Reinbeck Preschool6.5 mi · 11
- Meskwaki Settlement School7.2 mi · 294
- GMG Elementary School7.7 mi · 271
- East Marshall Senior High School8.1 mi · 217
- South Tama County Middle School8.7 mi · 413
- South Tama County Elementary School9.4 mi · 534
Frequently asked questions
About GMG Secondary SchoolWhat is the total enrollment at GMG Secondary School?
GMG Secondary School enrolls approximately 205 students in grades 07-12.
What grades does GMG Secondary School serve?
GMG Secondary School serves grades 07-12.
What is the student-teacher ratio at GMG Secondary School?
The student-to-teacher ratio at GMG Secondary School is approximately 10.9:1 (19 FTE teachers).
How diverse is GMG Secondary School?
GMG Secondary School reports a student body of 88% White, 5% Hispanic, 3% Black, 0% Asian, 3% Two or more.
Is GMG Secondary School public or private?
GMG Secondary School is a public K-12 school, overseen by GMG Comm School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.