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NAEP state assessment results

Grade 4 and grade 8 mathematics and reading results for the nation and every state from the National Assessment of Educational Progress, the Nation's Report Card: the average scale score and the percentage of students scoring at or above the Proficient achievement level, for public school students.

Figures

NAEP grade 4 mathematics score, 2000 to 2024NAEP grade 4 mathematics score, 2000 to 2024. Idaho: 224.5 in 2000, 238.4 in 2024.220.0225.0230.0235.0240.0245.0200020102020IdahoScale scoreNAEP grade 4 mathematics score, 2000 to 2024NAEP grade 4 mathematics score, 2000 to 2024. Idaho: 224.5 in 2000, 238.4 in 2024.220.0225.0230.0235.0240.0245.0200020102020IdahoScale scoreNAEP grade 4 mathematics score, 2000 to 2024NAEP grade 4 mathematics score, 2000 to 2024. Idaho: 224.5 in 2000, 238.4 in 2024.220.0225.0230.0235.0240.0245.020002005201020152020IdahoScale score

Source: National Center for Education Statistics, National Assessment of Educational Progress (NAEP) State Mathematics and Reading Assessments. Data period 2024. Published .

MeasureValuePeriod
NAEP grade 4 mathematics score2024238.4 points2024
NAEP grade 8 mathematics score2024278.1 points2024
NAEP grade 4 reading score2024215.7 points2024
NAEP grade 8 reading score2024260.7 points2024
NAEP grade 4 mathematics proficiency202440.7%2024
NAEP grade 8 mathematics proficiency202430.9%2024
NAEP grade 4 reading proficiency202431.9%2024
NAEP grade 8 reading proficiency202432.0%2024

Pages built on this dataset

Publisher

Organization
National Center for Education Statistics
Publisher’s dataset
National Assessment of Educational Progress (NAEP) State Mathematics and Reading Assessments
File or API used
https://www.nationsreportcard.gov/DataService/GetAdhocData.aspx
Methodology
https://nces.ed.gov/nationsreportcard/tdw/

Coverage

Geography
Nation and every state (50 states plus the District of Columbia)
Time coverage
1996 to 2024 for mathematics; 1998 to 2024 for reading
Update frequency
Every two years
Published
January 29, 2025
Retrieved
September 21, 2026
License of the records
Public domain. U.S. federal government work.
Rows
5,082 observations, 1996-2024

Measures

MeasureWhat it measuresUnit
NAEP grade 4 mathematics scoreAverage NAEP mathematics scale score for public school grade 4 students, on a 0 to 500 scale. (subscale MRPCM, stattype MN:MN)score
NAEP grade 8 mathematics scoreAverage NAEP mathematics scale score for public school grade 8 students, on a 0 to 500 scale. (subscale MRPCM, stattype MN:MN)score
NAEP grade 4 reading scoreAverage NAEP reading scale score for public school grade 4 students, on a 0 to 500 scale. (subscale RRPCM, stattype MN:MN)score
NAEP grade 8 reading scoreAverage NAEP reading scale score for public school grade 8 students, on a 0 to 500 scale. (subscale RRPCM, stattype MN:MN)score
NAEP grade 4 mathematics proficiencyShare of public school grade 4 students scoring at or above the Proficient achievement level on the NAEP mathematics assessment. (subscale MRPCM, stattype ALC:AP)percent
NAEP grade 8 mathematics proficiencyShare of public school grade 8 students scoring at or above the Proficient achievement level on the NAEP mathematics assessment. (subscale MRPCM, stattype ALC:AP)percent
NAEP grade 4 reading proficiencyShare of public school grade 4 students scoring at or above the Proficient achievement level on the NAEP reading assessment. (subscale RRPCM, stattype ALC:AP)percent
NAEP grade 8 reading proficiencyShare of public school grade 8 students scoring at or above the Proficient achievement level on the NAEP reading assessment. (subscale RRPCM, stattype ALC:AP)percent

Caveats

  • NAEP scores and achievement-level percentages are estimates from a sample of students in each state, not a count of every student.
  • Mathematics and reading are scored on separate scales, and grade 4 and grade 8 are scored on separate scales within each subject, so a score is comparable only within its own subject and grade, never across them.
  • Every figure covers public school students only, including the national figure, so a state's figures and the national figure are on the same basis.
  • State participation in this assessment was voluntary before 2003, so a state can be missing from an earlier assessment year.
  • The Nation's Report Card publishes these figures rounded to whole numbers; the figures here come from the underlying data service and are kept to one decimal place.
  • The Proficient achievement level represents solid academic performance for the grade assessed, including competency over challenging subject matter and the ability to apply it to real-world situations; it is a higher bar than performing at grade level, and NAEP says it should not be read as one.

How to cite

Understand Idaho, “National Assessment of Educational Progress (NAEP) State Mathematics and Reading Assessments”, compiled from National Center for Education Statistics, National Assessment of Educational Progress (NAEP) State Mathematics and Reading Assessments. Retrieved September 21, 2026. https://understandidaho.com/data/naep-state-assessments/.

Cite National Center for Education Statistics directly for the figures themselves.

This page was last updated .