| | Performance scale scores |
| United States | 254 | ( 0.4) | 264 | ( 0.3) | 262 | ( 0.4) |
| Alabama | 246 | ( 2.8) | 260 | ( 3.1) | 250 | ( 1.6) |
| Alaska | ‡ | ( ‡) | ‡ | ( ‡) | ‡ | ( ‡) |
| Arizona | 253 | ( 1.5) | 258 | ( 2.2) | 253 | ( 4.5) |
| Arkansas | 257 | ( 2.8) | 261 | ( 2.0) | 257 | ( 1.3) |
| California | 249 | ( 0.9) | 251 | ( 0.9) | 257 | ( 3.6) |
| Colorado | 260 | ( 2.1) | 268 | ( 1.5) | 266 | ( 2.0) |
| Connecticut | 244 | ( 3.0) | 270 | ( 1.5) | 269 | ( 1.8) |
| Delaware | 266 | ( 2.4) | 265 | ( 0.7) | 269 | ( 1.3) |
| District of Columbia | 238 | ( 0.9) | ‡ | ( ‡) | ‡ | ( ‡) |
| Florida | 252 | ( 2.4) | 257 | ( 1.5) | 257 | ( 2.5) |
| Georgia | 245 | ( 2.8) | 261 | ( 2.1) | 257 | ( 2.1) |
| Hawaii | 255 | ( 1.6) | 249 | ( 1.4) | 242 | ( 1.5) |
| Idaho | 266 | ( 1.2) | 264 | ( 1.4) | 263 | ( 2.0) |
| Illinois | 256 | ( 1.9) | 268 | ( 1.5) | 266 | ( 2.1) |
| Indiana | 254 | ( 2.1) | 265 | ( 2.0) | 263 | ( 1.6) |
| Iowa | 262 | ( 1.5) | 271 | ( 2.3) | 268 | ( 1.4) |
| Kansas | 262 | ( 2.6) | 270 | ( 1.7) | 267 | ( 1.1) |
| Kentucky | 271 | ( 2.3) | 262 | ( 2.1) | 263 | ( 1.6) |
| Louisiana | 247 | ( 2.8) | 255 | ( 2.8) | 255 | ( 1.9) |
| Maine | 269 | ( 2.6) | 277 | ( 2.1) | 268 | ( 1.1) |
| Maryland | 251 | ( 3.6) | 262 | ( 1.5) | 266 | ( 2.7) |
| Massachusetts | 258 | ( 1.4) | 280 | ( 1.3) | 280 | ( 3.1) |
| Michigan | 251 | ( 2.9) | 265 | ( 1.4) | 265 | ( 2.2) |
| Minnesota | 264 | ( 3.2) | 272 | ( 1.6) | 267 | ( 1.6) |
| Mississippi | 246 | ( 2.9) | 254 | ( 2.2) | 250 | ( 1.8) |
| Missouri | 258 | ( 3.0) | 267 | ( 1.3) | 266 | ( 1.6) |
| Montana | 270 | ( 1.6) | 271 | ( 1.8) | 268 | ( 0.9) |
| Nebraska | 266 | ( 1.6) | 268 | ( 1.6) | 268 | ( 1.4) |
| Nevada | 253 | ( 1.4) | 251 | ( 1.4) | 256 | ( 1.5) |
| New Hampshire | 264 | ( 2.1) | 270 | ( 2.0) | 272 | ( 1.9) |
| New Jersey | ‡ | ( ‡) | 270 | ( 1.2) | 278 | ( 3.0) |
| New Mexico | 256 | ( 1.9) | 249 | ( 1.9) | 248 | ( 1.7) |
| New York | 252 | ( 1.5) | 275 | ( 1.4) | 271 | ( 1.4) |
| North Carolina | 257 | ( 1.6) | 261 | ( 1.9) | 258 | ( 1.5) |
| North Dakota | 271 | ( 1.5) | 270 | ( 1.8) | 270 | ( 0.8) |
| Ohio | 248 | ( 3.1) | 272 | ( 1.6) | 272 | ( 2.2) |
| Oklahoma | 252 | ( 4.0) | 264 | ( 1.3) | 259 | ( 1.4) |
| Oregon | 264 | ( 2.2) | 264 | ( 1.7) | 261 | ( 1.9) |
| Pennsylvania | 247 | ( 3.9) | 273 | ( 1.9) | 268 | ( 1.4) |
| Rhode Island | 245 | ( 1.4) | 267 | ( 1.0) | 275 | ( 1.7) |
| South Carolina | 259 | ( 2.5) | 261 | ( 1.6) | 253 | ( 1.5) |
| South Dakota | 267 | ( 1.1) | 271 | ( 2.4) | 269 | ( 0.7) |
| Tennessee | 252 | ( 1.7) | 264 | ( 2.3) | 260 | ( 1.6) |
| Texas | 256 | ( 1.1) | 261 | ( 1.1) | 259 | ( 1.6) |
| Utah | 261 | ( 1.4) | 262 | ( 1.0) | 264 | ( 3.0) |
| Vermont | ‡ | ( ‡) | ‡ | ( ‡) | ‡ | ( ‡) |
| Virginia | 260 | ( 1.7) | 273 | ( 1.6) | 266 | ( 2.1) |
| Washington | 264 | ( 2.4) | 265 | ( 1.5) | 265 | ( 2.3) |
| West Virginia | 260 | ( 2.0) | 259 | ( 2.7) | 252 | ( 1.3) |
| Wisconsin | 255 | ( 2.6) | 275 | ( 1.6) | 266 | ( 1.6) |
| Wyoming | 267 | ( 1.6) | 270 | ( 3.7) | 269 | ( 0.8) |
| | Percentage distribution |
| United States | 30 | ( 0.3) | 43 | ( 0.4) | 27 | ( 0.3) |
| Alabama | 24 | ( 2.1) | 29 | ( 2.6) | 47 | ( 2.5) |
| Alaska | ‡ | ( ‡) | ‡ | ( ‡) | ‡ | ( ‡) |
| Arizona | 49 | ( 2.0) | 29 | ( 2.9) | 22 | ( 3.5) |
| Arkansas | 22 | ( 1.4) | 18 | ( 1.3) | 60 | ( 1.8) |
| California | 45 | ( 0.9) | 48 | ( 1.0) | 7 | ( 0.9) |
| Colorado | 36 | ( 2.1) | 46 | ( 2.1) | 18 | ( 2.2) |
| Connecticut | 23 | ( 1.8) | 63 | ( 2.0) | 14 | ( 1.4) |
| Delaware | 9 | ( 0.3) | 62 | ( 0.4) | 29 | ( 0.4) |
| District of Columbia | 100 | (***) | # | (***) | # | (***) |
| Florida | 25 | ( 2.0) | 59 | ( 2.4) | 16 | ( 1.4) |
| Georgia | 15 | ( 1.0) | 45 | ( 1.7) | 40 | ( 1.9) |
| Hawaii | 24 | ( 0.3) | 49 | ( 0.4) | 27 | ( 0.3) |
| Idaho | 30 | ( 1.2) | 26 | ( 1.3) | 44 | ( 2.2) |
| Illinois | 34 | ( 1.5) | 47 | ( 2.1) | 19 | ( 2.0) |
| Indiana | 26 | ( 2.0) | 35 | ( 2.3) | 39 | ( 2.0) |
| Iowa | 24 | ( 1.3) | 16 | ( 1.5) | 60 | ( 1.7) |
| Kansas | 25 | ( 1.4) | 29 | ( 2.9) | 45 | ( 2.8) |
| Kentucky | 16 | ( 1.0) | 29 | ( 2.0) | 55 | ( 2.0) |
| Louisiana | 30 | ( 2.5) | 31 | ( 2.2) | 39 | ( 2.8) |
| Maine | 10 | ( 0.5) | 18 | ( 1.4) | 72 | ( 1.5) |
| Maryland | 16 | ( 1.8) | 68 | ( 1.9) | 16 | ( 1.1) |
| Massachusetts | 28 | ( 1.2) | 61 | ( 1.2) | 11 | ( 0.5) |
| Michigan | 27 | ( 2.1) | 44 | ( 2.2) | 29 | ( 2.2) |
| Minnesota | 22 | ( 2.1) | 41 | ( 2.1) | 37 | ( 2.5) |
| Mississippi | 12 | ( 0.9) | 28 | ( 2.5) | 59 | ( 2.4) |
| Missouri | 19 | ( 1.0) | 40 | ( 1.7) | 40 | ( 1.8) |
| Montana | 23 | ( 0.8) | 15 | ( 0.7) | 62 | ( 1.2) |
| Nebraska | 32 | ( 2.0) | 18 | ( 1.7) | 50 | ( 2.1) |
| Nevada | 48 | ( 1.2) | 31 | ( 1.1) | 21 | ( 1.2) |
| New Hampshire | 17 | ( 0.5) | 37 | ( 1.3) | 46 | ( 1.4) |
| New Jersey | 7 | ( 2.7) | 84 | ( 2.9) | 8 | ( 1.0) |
| New Mexico | 36 | ( 1.4) | 30 | ( 1.4) | 33 | ( 1.3) |
| New York | 41 | ( 1.4) | 43 | ( 1.6) | 15 | ( 1.6) |
| North Carolina | 25 | ( 1.4) | 24 | ( 1.0) | 51 | ( 1.4) |
| North Dakota | 22 | ( 0.4) | 14 | ( 0.3) | 64 | ( 0.4) |
| Ohio | 22 | ( 1.5) | 47 | ( 2.2) | 31 | ( 2.2) |
| Oklahoma | 19 | ( 1.4) | 38 | ( 2.6) | 43 | ( 2.4) |
| Oregon | 33 | ( 1.9) | 39 | ( 1.9) | 29 | ( 2.3) |
| Pennsylvania | 19 | ( 1.3) | 54 | ( 1.3) | 27 | ( 1.0) |
| Rhode Island | 32 | ( 0.3) | 57 | ( 0.3) | 11 | ( 0.2) |
| South Carolina | 15 | ( 1.4) | 40 | ( 1.7) | 46 | ( 2.6) |
| South Dakota | 24 | ( 0.4) | 4 | ( 0.2) | 72 | ( 0.4) |
| Tennessee | 30 | ( 1.8) | 29 | ( 2.5) | 41 | ( 2.4) |
| Texas | 47 | ( 1.2) | 33 | ( 1.3) | 20 | ( 1.4) |
| Utah | 18 | ( 0.4) | 63 | ( 1.0) | 19 | ( 1.0) |
| Vermont | ‡ | ( ‡) | ‡ | ( ‡) | ‡ | ( ‡) |
| Virginia | 25 | ( 1.0) | 48 | ( 1.3) | 28 | ( 1.6) |
| Washington | 27 | ( 2.4) | 51 | ( 2.2) | 22 | ( 1.6) |
| West Virginia | 15 | ( 1.3) | 25 | ( 1.8) | 60 | ( 1.7) |
| Wisconsin | 29 | ( 1.8) | 34 | ( 2.0) | 37 | ( 2.0) |
| Wyoming | 24 | ( 0.3) | 4 | ( 0.2) | 73 | ( 0.4) |
| # Rounds to zero. |
| ‡ Reporting standards not met. |
| (***) Standard error estimates cannot be determined. |
| NOTE: The NAEP Reading scale ranges from 0 to 500. Observed differences are not necessarily statistically significant. Detail may not sum to totals because of rounding. Standard errors appear in parentheses. |
| SOURCE: U.S. Department of Education, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Reading Assessment, NAEP Data Explorer. |