Table 216.45.

Average enrollment and percentage distribution of public elementary and secondary schools, by level, type, and enrollment size: 2009-10 through 2019-20

Year	Average enrollment in schools, by level and type							Percentage distribution of schools, by enrollment size
	Total	Prekindergarten	Elementary	Middle	Secondary and high		Other, ungraded, and not applicable/ not reported
					All schools	Regular schools1		Under 200	200 to 299	300 to 399	400 to 499	500 to 599	600 to 699	700 to 999	1,000 or more
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
2009-10	516	165	450	568	680	821	314	20.0	11.3	13.7	13.9	11.4	8.5	12.3	9.0
2010-11	517	162	453	568	675	816	325	19.8	11.0	13.9	13.9	11.5	8.5	12.5	9.0
2011-12	520	165	457	571	683	812	314	19.4	11.0	13.8	13.9	11.7	8.6	12.7	9.0
2012-13	522	164	460	576	674	804	339	19.3	10.9	13.6	13.9	11.7	8.6	12.8	9.1
2013-14	525	165	463	577	675	803	355	19.2	10.9	13.4	13.9	11.8	8.7	13.0	9.1
2014-15	525	159	464	575	677	804	362	19.2	10.9	13.4	13.9	11.8	8.6	12.9	9.2
2015-16	526	162	464	575	680	807	379	19.0	10.9	13.5	14.1	11.6	8.7	12.8	9.3
2016-17	528	160	463	579	687	810	378	19.0	10.9	13.7	14.1	11.6	8.6	12.8	9.3
2017-18	528	162	461	586	691	812	376	18.7	11.0	13.9	14.3	11.5	8.6	12.7	9.4
2018-19	527	163	458	591	689	812	395	18.8	11.3	13.8	14.2	11.5	8.5	12.5	9.4
2019-20	529	164	456	599	693	820	403	18.6	11.3	14.2	14.0	11.4	8.4	12.4	9.6

1 Excludes special education schools, vocational schools, and alternative schools.

NOTE: Data in this table represent the 50 states and the District of Columbia. Data reflect reports by schools rather than by states or school districts. Percentage distribution and average enrollment calculations include data only for schools reporting enrollments greater than zero. Enrollments greater than zero were reported for 95,364 out of 98,469 schools in 2019-20. Detail may not sum to totals because of rounding. Some data have been revised from previously published figures.

SOURCE: U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD), "Public Elementary/Secondary School Universe Survey," 2009-10 through 2019-20. (This table was prepared October 2021.)