NAEP Assessment Sample Design → NAEP 2009 Sample Design → Sample Design for the 2009 National Assessment → 2009 Twelfth-Grade Public School National Assessment → Sampling Frame for the 2009 Twelfth-Grade Public School National Assessment → Twelfth-Grade Public School Enrollment for the 2009 Sampling Frame

NAEP Technical DocumentationTwelfth-Grade Public School Enrollment for the 2009 Sampling Frame

The following table presents the number of schools and estimated enrollment for the twelfth-grade Common Core of Data (CCD) frame by Census region.

NAEP twelfth-grade Common Core of Data (CCD) frame public school enrollment and counts, national assessment, by Census region: 2009

Census region	Schools	Percent	Estimated enrollment	Percent
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Assessment.
Total	22,308	100.00	3,248,968	100.00
Northeast	3,104	13.91	567,899	17.48
Midwest	6,543	29.33	767,885	23.63
South	7,205	32.30	1,090,925	33.58
West	5,456	24.46	822,259	25.31

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