Table 208.10.

Public elementary and secondary pupil/teacher ratios, by selected school characteristics: Selected years, fall 1990 through fall 2017

Selected school characteristic	1990	1995	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	20101	2011	2012	2013	2014	2015	2016	2017
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22
All schools	17.4	17.8	16.6	16.4	16.3	16.2	16.4	16.2	16.0	15.8	15.7	15.7	16.0	16.4	16.3	16.4	16.3	16.2	16.2	16.2	16.1
Enrollment size of school
Under 300	14.0	14.1	13.3	13.1	12.9	12.8	13.0	12.8	12.7	12.7	12.7	12.5	12.6	12.9	12.8	12.8	12.7	12.7	12.8	12.8	12.7
300 to 499	17.0	17.1	15.8	15.5	15.4	15.3	15.5	15.2	15.0	14.9	15.0	14.8	15.2	15.4	15.4	15.5	15.4	15.3	15.3	15.2	15.2
500 to 999	18.0	18.2	16.8	16.7	16.5	16.5	16.6	16.4	16.2	15.9	15.9	15.9	16.3	16.7	16.7	16.7	16.7	16.5	16.5	16.5	16.4
1,000 to 1,499	17.9	18.7	17.6	17.4	17.4	17.4	17.6	17.3	16.9	16.7	16.5	16.5	16.8	17.3	17.1	17.1	17.1	16.9	16.9	17.0	16.8
1,500 or more	19.2	20.0	19.3	19.1	19.0	18.9	19.2	19.1	18.8	18.6	18.1	18.3	18.7	19.5	19.0	19.0	19.1	19.0	19.0	18.9	18.8
Type
Regular schools	17.6	17.9	16.7	16.5	16.4	16.3	16.5	16.3	16.1	15.9	15.8	15.8	16.1	16.5	16.4	16.5	16.5	16.3	16.3	16.3	16.2
Alternative	14.2	16.6	15.8	15.2	14.9	14.9	15.0	14.4	14.0	14.7	13.5	14.2	14.3	14.8	14.7	14.8	14.3	14.5	14.4	14.4	13.9
Special education	6.5	7.2	7.2	7.0	6.4	7.0	7.3	7.4	6.2	6.6	7.1	6.8	7.1	6.9	7.1	7.2	6.6	7.0	7.4	7.2	7.3
Vocational	13.0	12.7	13.0	12.7	12.7	9.9	10.3	11.5	12.0	13.3	11.3	10.7	10.2	11.7	11.8	11.6	11.8	11.8	11.9	11.8	11.7
Percent of students eligible for     free or reduced-price lunch
25 percent or less	---	---	16.9	16.7	16.7	16.6	16.8	16.8	16.5	16.4	16.3	16.1	16.5	16.8	16.9	16.5	16.5	16.4	16.5	16.5	16.2
26 percent to 50 percent	---	---	16.4	16.2	16.1	16.2	16.4	16.2	16.1	15.8	15.7	15.7	16.1	16.5	16.2	16.4	16.3	16.2	16.2	16.1	16.0
51 percent to 75 percent	---	---	16.2	16.1	16.0	16.0	16.0	15.9	15.6	15.3	15.2	15.4	15.8	16.2	15.8	16.2	16.1	16.0	16.0	15.9	15.9
More than 75 percent	---	---	16.3	16.1	16.0	16.0	16.1	15.9	15.5	15.4	15.0	15.1	15.6	16.0	15.5	16.3	16.5	16.4	16.4	16.4	16.2
Level and size
Elementary schools	18.1	18.1	16.7	16.5	16.3	16.2	16.3	16.0	15.8	15.6	15.6	15.5	15.9	16.3	16.3	16.4	16.3	16.1	16.1	16.1	16.0
Regular	18.2	18.1	16.7	16.5	16.3	16.2	16.3	16.0	15.8	15.6	15.6	15.5	15.9	16.3	16.3	16.4	16.4	16.2	16.1	16.1	16.0
Under 300	16.0	15.7	14.6	14.4	14.1	13.9	14.0	13.7	13.6	13.5	13.7	13.5	13.7	14.0	14.0	14.0	14.0	13.8	13.8	13.7	13.8
300 to 499	17.6	17.5	16.1	15.8	15.6	15.5	15.6	15.3	15.2	15.1	15.2	15.0	15.4	15.6	15.7	15.7	15.6	15.5	15.4	15.4	15.3
500 to 999	18.8	18.6	17.1	16.9	16.8	16.7	16.8	16.5	16.3	16.0	16.0	16.0	16.5	16.9	16.9	17.0	17.0	16.7	16.7	16.7	16.5
1,000 to 1,499	19.5	19.7	18.3	18.1	18.0	18.0	18.1	17.7	17.2	17.0	16.7	16.8	17.2	17.8	17.7	17.8	17.7	17.5	17.4	17.4	17.3
1,500 or more	19.9	20.9	20.0	20.5	20.2	20.3	20.8	20.5	19.6	19.4	18.0	18.1	18.5	19.3	19.0	18.9	19.1	19.0	18.8	18.6	18.0
Secondary schools	16.6	17.6	16.8	16.6	16.6	16.7	16.9	16.8	16.6	16.4	16.3	16.2	16.4	16.8	16.5	16.6	16.6	16.6	16.6	16.6	16.5
Regular	16.7	17.7	16.9	16.7	16.7	16.8	17.0	16.9	16.8	16.6	16.4	16.3	16.6	16.9	16.7	16.7	16.7	16.7	16.7	16.7	16.6
Under 300	12.3	12.8	12.0	12.0	11.9	12.0	12.3	12.0	12.2	12.0	12.1	11.9	11.9	12.2	12.0	12.1	12.1	11.9	12.1	12.2	12.1
300 to 499	14.9	15.7	14.6	14.5	14.4	14.4	14.7	14.7	14.6	14.4	14.4	14.3	14.3	14.6	14.6	14.5	14.4	14.6	14.6	14.5	14.5
500 to 999	16.1	16.9	16.0	15.8	15.7	15.8	16.0	15.9	15.8	15.6	15.4	15.4	15.6	15.8	15.7	15.7	15.7	15.7	15.7	15.8	15.7
1,000 to 1,499	17.2	18.0	17.1	16.8	16.8	16.9	17.2	17.0	16.8	16.5	16.5	16.3	16.6	16.9	16.6	16.6	16.6	16.5	16.5	16.6	16.5
1,500 or more	19.3	20.0	19.2	18.9	18.8	18.8	19.0	19.0	18.8	18.5	18.2	18.2	18.6	19.3	18.8	18.9	18.9	18.9	18.7	18.7	18.6
Combined schools	14.5	15.0	13.4	13.7	13.4	13.5	13.8	13.9	14.1	14.7	13.4	13.9	14.0	15.4	14.4	14.4	14.7	14.2	15.2	15.0	14.8
Under 300	8.9	9.0	9.1	9.2	9.1	9.1	9.5	9.2	9.5	10.1	9.2	8.9	9.1	9.2	9.4	9.3	9.1	9.2	9.6	9.7	9.4
300 to 499	14.2	14.7	13.8	13.5	13.1	13.1	14.4	13.4	13.9	14.3	13.7	13.9	13.8	13.6	13.3	13.3	13.5	13.6	14.3	14.0	13.6
500 to 999	16.3	16.6	14.9	15.8	15.6	16.0	15.4	15.8	15.9	16.0	15.2	15.6	15.8	16.9	15.6	15.5	15.5	15.1	16.3	15.9	15.7
1,000 to 1,499	17.8	18.2	16.9	17.5	18.1	17.7	17.5	17.4	16.4	17.3	15.9	16.7	17.9	19.2	18.1	17.8	17.9	17.3	17.5	17.3	16.9
1,500 or more	17.7	19.6	19.2	18.6	18.9	19.1	19.2	18.7	20.0	20.3	18.0	21.7	21.7	25.7	23.4	23.3	24.7	20.9	23.6	22.9	22.9
Ungraded	6.4	6.9	5.3	7.0	6.3	6.8	9.6	8.0	7.7	7.2	7.3	5.5	8.5	5.3	6.0	5.9	3.0	8.1	9.0	5.1	5.7
Level, type, and percent of     students eligible for free     or reduced-price lunch
Elementary, regular
25 percent or less	---	---	17.1	16.9	16.7	16.5	16.7	16.6	16.4	16.2	16.2	16.0	16.4	16.8	16.6	16.5	16.5	16.3	16.4	16.3	16.1
26 to 50 percent	---	---	16.5	16.3	16.2	16.1	16.2	16.0	15.8	15.5	15.6	15.6	16.0	16.4	16.3	16.4	16.3	16.1	16.1	16.0	15.9
51 to 75 percent	---	---	16.3	16.2	16.1	16.0	16.0	15.7	15.5	15.1	15.2	15.2	15.7	16.0	15.9	16.2	16.1	15.8	15.8	15.8	15.7
More than 75 percent	---	---	16.6	16.4	16.2	16.1	16.3	16.0	15.6	15.4	15.1	15.2	15.8	16.1	15.7	16.5	16.6	16.5	16.4	16.4	16.3
Secondary, regular
25 percent or less	---	---	17.0	16.9	16.9	16.9	17.2	17.5	17.0	16.9	16.8	16.6	16.8	17.1	17.4	16.7	16.8	16.7	16.9	16.8	16.4
26 to 50 percent	---	---	16.6	16.4	16.3	16.5	16.9	16.9	16.8	16.4	16.4	16.2	16.5	16.8	16.4	16.6	16.5	16.5	16.6	16.6	16.5
51 to 75 percent	---	---	16.8	16.6	16.6	16.6	17.0	16.9	16.7	16.3	16.1	16.4	16.5	17.1	16.1	16.7	16.8	16.9	16.9	16.8	16.8
More than 75 percent	---	---	16.8	16.5	16.5	16.3	16.6	16.2	16.7	16.2	15.7	15.9	16.0	16.5	15.5	16.6	17.0	17.0	17.1	17.1	17.0

---Not available.

1 Includes imputations for California and Wyoming.

NOTE: Includes only schools that reported both enrollment and teacher data. Ratios are based on data reported by schools and may differ from data reported in other tables that reflect aggregate totals reported by states.

SOURCE: U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD), "Public Elementary/Secondary School Universe Survey," 1990-91 through 2017-18. (This table was prepared February 2020.)