| State | Reading | Mathematics | ||
|---|---|---|---|---|
| NAEP schools | Population represented | NAEP schools | Population represented | |
| Alabama | 100.0 | 100.0 | 100.0 | 100.0 |
| Alaska | 55.2 | 85.7 | 55.6 | 86.0 |
| Arizona | 96.1 | 97.5 | 96.2 | 97.5 |
| Arkansas | 90.6 | 91.7 | 90.6 | 91.7 |
| California | 97.8 | 92.7 | – | † |
| Colorado | 97.5 | 98.2 | 97.5 | 98.0 |
| Connecticut | 100.0 | 100.0 | 100.0 | 100.0 |
| Delaware | 89.4 | 89.6 | 87.5 | 89.3 |
| District of Columbia | 61.8 | 70.0 | 62.5 | 70.7 |
| Florida | 97.4 | 97.7 | 97.4 | 98.0 |
| Georgia | 99.2 | 99.9 | 99.2 | 99.9 |
| Hawaii | 95.8 | 98.3 | 95.8 | 98.2 |
| Idaho | 92.9 | 93.1 | 92.9 | 93.9 |
| Illinois | 96.6 | 95.8 | 96.6 | 95.1 |
| Indiana | 99.1 | 99.1 | 99.1 | 98.9 |
| Iowa | 93.8 | 96.7 | 93.8 | 96.7 |
| Kansas | 96.7 | 94.3 | 96.7 | 95.0 |
| Kentucky | 90.6 | 94.3 | 89.2 | 94.5 |
| Louisiana | 95.1 | 93.0 | 95.1 | 93.0 |
| Maine | 98.5 | 99.8 | 98.5 | 99.7 |
| Maryland | 99.2 | 99.0 | 99.2 | 99.0 |
| Massachusetts | 96.4 | 98.6 | 96.4 | 98.3 |
| Michigan | 94.6 | 97.3 | 94.6 | 97.4 |
| Minnesota | 98.6 | 98.7 | 98.6 | 98.5 |
| Mississippi | 93.9 | 93.7 | 93.9 | 94.0 |
| Missouri | 100.0 | 100.0 | 100.0 | 100.0 |
| Montana | 100.0 | 100.0 | 100.0 | 100.0 |
| Nebraska | – | † | – | † |
| Nevada | 89.5 | 91.5 | 89.4 | 91.4 |
| New Hampshire | 98.9 | 99.5 | 98.9 | 99.6 |
| New Jersey | 98.2 | 98.4 | 98.2 | 98.1 |
| New Mexico | 99.0 | 94.7 | 99.0 | 94.7 |
| New York | 98.7 | 99.0 | 98.7 | 98.9 |
| North Carolina | 98.0 | 97.8 | 98.0 | 97.6 |
| North Dakota | 94.9 | 94.5 | 94.4 | 94.2 |
| Ohio | 98.9 | 99.7 | 98.9 | 99.5 |
| Oklahoma | 98.0 | 98.8 | 98.0 | 98.9 |
| Oregon | 96.9 | 98.0 | 96.9 | 98.3 |
| Pennsylvania | 98.0 | 98.6 | 98.0 | 98.5 |
| Rhode Island | 96.4 | 97.1 | 96.4 | 97.0 |
| South Carolina | 95.5 | 93.0 | 95.5 | 92.3 |
| South Dakota | 94.9 | 96.5 | 95.4 | 96.8 |
| Tennessee | 96.7 | 95.5 | 96.7 | 95.6 |
| Texas | 99.4 | 99.7 | 99.4 | 99.8 |
| Utah | 95.5 | 97.6 | 95.6 | 97.4 |
| Vermont | 83.3 | 86.4 | 83.3 | 87.6 |
| Virginia | 97.2 | 96.6 | – | † |
| Washington | 100.0 | 100.0 | 100.0 | 100.0 |
| West Virginia | 93.1 | 87.6 | 93.1 | 87.3 |
| Wisconsin | 98.2 | 99.6 | 97.6 | 99.5 |
| Wyoming | 84.3 | 97.1 | 88.1 | 96.8 |
| – Not available. Nebraska did not offer a statewide assessment to report on standards. | ||||
| California and Virginia do not assess general mathematics in grade 8. | ||||
| SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Reading and Mathematics Assessments. | ||||