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S
70.9/ 100
Success Index (US)
Top 25%

#211 of 319 high schools in Iowa
#3075 of 16,910 nationally

How is this calculated?
Students
205
Enrollment
205
Source: NCES CCD
Free/reduced-price lunch
51.2%
Source: NCES CCD
Students per teacher
11.4
Source: NCES CCD

About GMG Secondary School

GMG Secondary School is a public high located in Garwin, in the GMG Comm School District school district of Iowa, United States. It caters for Grades 7–12. In 2025 it enrolled 205 students. Traditional public schools run by a school district; free to attend.

Its Success Index (US) is 70.9 out of 100, placing it in the top 25% of high schools in United States and 211th of 319 ranked high schools in Iowa. Its strongest component is reading proficiency (83th percentile), and its weakest is community advantage (fewer free/reduced-price lunch) (50th percentile).

Other published figures: enrollment 205.

Success Index (US) breakdown

Each component is a percentile against high schools across United States.

  • Math proficiency (30%)62%
  • Reading proficiency (30%)77%
  • Community advantage (fewer free/reduced-price lunch) (25%)51.2%
  • Students per teacher (15%)11.4

The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.

Published measures

All figures published for GMG Secondary School by the official sources.

Enrollment
205
Students enrolled in the latest NCES directory year.
Free/reduced-price lunch
51.2%
Share of students eligible for free or reduced-price lunch.
Students per teacher
11.4
Enrollment divided by FTE teachers; not class size.
Reading proficiency
77%
Share of tested students proficient or above (all students, all grades).
Math proficiency
62%
Share of tested students proficient or above (all students, all grades).

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Schools near GMG Secondary School

Closest schools by straight-line distance, with their Success Index (US).

Similar schools

Public high schools in Iowa with a comparable Enrollment.

Frequently asked questions

Is GMG Secondary School a good school?

GMG Secondary School has a Success Index (US) of 70.9 out of 100 (Top 25% of high schools in United States) and ranks #211 of 319 in Iowa. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.

Where does GMG Secondary School rank in Iowa?

GMG Secondary School ranks #211 of 319 high schools in Iowa and #3075 of 16,910 nationally on the Success Index (US) (2025 data).

How many students attend GMG Secondary School?

GMG Secondary School had 205 students in 2025.

Is GMG Secondary School a elementary school or a high school?

GMG Secondary School is classified as a high covering Grades 7–12. It is a public school.

What other schools are near GMG Secondary School?

There are 4 schools within 15 km of GMG Secondary School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.