Idaho student-teacher ratio

Organization

National Center for Education Statistics

Dataset

Digest of Education Statistics, Tables 208.40, 203.20, 304.10, and 211.60

Geography

Nation and every state (50 states plus the District of Columbia)

Time coverage

2022 (student_teacher_ratio); 1990-2024 selected years (public_school_enrollment_nces); 1970-2022 selected years (higher_ed_enrollment_nces); 1969-2021 selected school years (teacher_avg_salary_nces)

Update frequency

Annual

Published

March 2026

Original file

https://nces.ed.gov/programs/digest/d25/tables/xls/tabn203.20.xlsx

Methodology

https://nces.ed.gov/ccd/

License

Public domain. U.S. federal government work.

Our copy

Digest of Education Statistics, Tables 208.40, 203.20, 304.10, and 211.60, built by scripts/fetch-nces-digest.py

Caveats

• The pupil/teacher ratio counts teachers of students with disabilities and other special education staff, so it runs higher than a classroom class-size figure.
• Public school enrollment (table 203.20) is fall Common Core of Data state-reported membership, a different count and date than SDE's own fall LEA figure.
• Higher education enrollment (table 304.10) counts every public, private nonprofit and for-profit degree-granting institution in a state, not just Idaho's public institutions that OSBE counts.
• Tables 208.40 and 304.10 run through fall 2022, the newest edition of each; table 211.60 runs through school year 2021-22, its newest edition.
• NCES's state teacher salaries (table 211.60) are National Education Association estimates of average classroom teacher salary, which differ in definition from SDE's certificated-staff average used for Idaho's own figure (education.teacher_avg_salary, dataset sde-staff).

Where sources disagree

• Public school enrollment (NCES), Idaho, 2024: idaho-sde publishes 318,067. NCES Digest of Education Statistics table 203.20 (fall 2024 CCD state-reported enrollment) gives 315,626 for Idaho, versus the Idaho State Department of Education's own fall 2024 fall LEA membership count of 318,067 used for education.public_school_enrollment (dataset sde-enrollment). NCES compiles the CCD figure from state-reported totals for its own national survey; SDE's figure is Idaho's own fall membership count and count date.
• Postsecondary enrollment (NCES), Idaho, 2022: idaho-osbe publishes 78,601. NCES Digest of Education Statistics table 304.10 (fall 2022 IPEDS enrollment) gives 125,249 for Idaho, versus the Idaho State Board of Education's own fall 2022 headcount of 78,601 used for education.higher_ed_enrollment (dataset osbe-factbook). NCES's IPEDS-based figure counts every public, private nonprofit, and for-profit degree-granting institution in Idaho; OSBE's figure counts headcount at Idaho's public four-year institutions and community colleges only.
• Average teacher salary (NCES), Idaho, 2021: idaho-sde publishes 54,231.6. NCES table 211.60 gives $54,232 for school year 2021-22, an NEA estimate of average classroom teacher salary; SDE's figure is its own payroll average for the teacher activity, a different definition.