Enrollment and staffing by state
Public school pupil/teacher ratios, public school enrollment, postsecondary enrollment, teacher salary, and high school graduation rate for the nation and every state, from five Digest of Education Statistics tables (208.40, 203.20, 304.10, 211.60, and 219.46) published by the National Center for Education Statistics (NCES).
Figures
Source: National Center for Education Statistics, Digest of Education Statistics. Data period 2024. Published .
| Measure | Value | Period |
|---|---|---|
| Student-teacher ratio2022 | 17.525 | 2022 |
| Public school enrollment (NCES)2024 | 315,626 | 2024 |
| Postsecondary enrollment (NCES)2022 | 125,249 | 2022 |
| Average teacher salary (NCES)2021 | $54,232 | 2021 |
| Public high school 4-year adjusted cohort graduation rate2021 | 79.9% | 2021 |
Pages built on this dataset
Publisher
- Organization
- National Center for Education Statistics
- Publisher’s dataset
- Digest of Education Statistics
- File or API used
- https://nces.ed.gov/programs/digest/d25/tables/xls/tabn203.20.xlsx
- Methodology
- https://nces.ed.gov/ccd/
Coverage
- Geography
- Nation and every state (50 states plus the District of Columbia)
- Time coverage
- 1969 to 2024, at whichever years each of the five source tables publishes; each measure's own span is in its description
- Update frequency
- Annual
- Published
- March 2026
- Retrieved
- September 9, 2026
- License of the records
- Public domain. U.S. federal government work.
- Rows
- 2,538 observations, 1969-2024
Measures
| Measure | What it measures | Unit |
|---|---|---|
| Student-teacher ratio | Public elementary and secondary school pupils per full-time-equivalent teacher, fall 2022. | ratio |
| Public school enrollment (NCES) | NCES-reported fall public elementary and secondary school enrollment (CCD state-reported membership) for the nation and every state, at each year Digest of Education Statistics table 203.20 prints across its d24 and d25 editions (fall 1990, 2000, 2010 through 2024). | count |
| Postsecondary enrollment (NCES) | NCES IPEDS total fall enrollment at all degree-granting postsecondary institutions (public, private nonprofit, and for-profit) for the nation and every state, at each year Digest of Education Statistics table 304.10 prints (1970, 1980, 1990, 2000, 2010, 2012, and 2017 through 2022). | count |
| Average teacher salary (NCES) | National Education Association estimate of average annual salary of public elementary and secondary school teachers, current dollars, for the nation and every state, at each school year Digest of Education Statistics table 211.60 prints (1969-70, 1979-80, 1989-90, 1999-2000, 2009-10, 2019-20, 2020-21, and 2021-22). | usd |
| Public high school 4-year adjusted cohort graduation rate | Public high school 4-year adjusted cohort graduation rate (ACGR) for all students, for the nation and every state, at each school year Digest of Education Statistics table 219.46 publishes a value (school years 2011-12 through 2021-22, or 2013-14 through 2021-22 for Idaho). The period is the school year's starting year: 2021 is the 2021-22 school year, whose class graduated in spring 2022. (Table 219.46, Total column, "ACGR for all students") | percent |
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 the State Department of Education's own fall 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 the State Board of Education 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 the State Department of Education's own certificated-staff average used for Idaho's own average teacher salary figure.
- The adjusted cohort graduation rate (ACGR) is the percentage of public high school freshmen who graduate with a regular diploma (or, from school year 2017-18 on, a state-defined alternate diploma for students with the most significant cognitive disabilities) within four years of starting 9th grade; a student's starting cohort is adjusted for transfers in and out, emigration, and death.
- Idaho, Kentucky, and Oklahoma have no ACGR for school year 2011-12, and Idaho has none for 2012-13, because those states had not yet started reporting ACGR data; Idaho's own series begins at school year 2013-14.
- Table 219.46 (prepared January 2024) is the newest edition NCES has published for this table, so school year 2021-22 is the newest adjusted cohort graduation rate this dataset can offer.
- NCES notes that some states changed their diploma requirements for school year 2019-20 to account for the coronavirus pandemic, which may make that year's ACGR less comparable with other years.
Where sources disagree
- Public school enrollment (NCES), Idaho, 2024: the Idaho State Department of Education publishes 318,067. NCES Digest of Education Statistics table 203.20 (fall 2024 Common Core of Data state-reported enrollment) gives 315,626 for Idaho. The State Department of Education's own fall 2024 membership count is 318,067. NCES compiles its figure from state-reported totals for its own national survey; the State Department of Education's figure is Idaho's own fall membership count and count date.
- Postsecondary enrollment (NCES), Idaho, 2022: the Idaho State Board of Education publishes 78,601. NCES Digest of Education Statistics table 304.10 (fall 2022 IPEDS enrollment) gives 125,249 for Idaho. The State Board of Education's own fall 2022 headcount is 78,601. NCES's IPEDS-based figure counts every public, private nonprofit, and for-profit degree-granting institution in Idaho; the State Board of Education's figure counts headcount at Idaho's public four-year institutions and community colleges only.
- Average teacher salary (NCES), Idaho, 2021: the Idaho State Department of Education publishes $54,232. NCES table 211.60 gives $54,232 for school year 2021-22, a National Education Association estimate of average classroom teacher salary. The State Department of Education's figure is its own payroll average for staff whose job assignment it classifies as Teacher, a different definition.
How to cite
Understand Idaho, “Digest of Education Statistics”, compiled from National Center for Education Statistics, Digest of Education Statistics. Retrieved September 9, 2026. https://understandidaho.com/data/nces-digest/.
Cite National Center for Education Statistics directly for the figures themselves.
This page was last updated .