Private School Universe Survey (PSS)



Table 7. Average private school size, by school level and selected school characteristics: United States, 2017–18
                 
  Average number of students
Selected school
characteristic
Total   Elementary   Secondary   Combined  
Total 150.9   108.0   284.2   201.5  
                 
Private school typology                
Catholic 278.4   218.6   509.7   397.8  
Parochial 240.1   222.7   427.9   432.6  
Diocesan 276.2   222.2   522.8   304.3  
Private 365.7   176.3   509.2   439.6  
                 
Other Religious 128.1   79.5   147.5   193.9  
Conservative Christian 158.2   104.1   144.0   181.9  
Other affiliated 187.1   123.5   180.0   293.2  
Unaffiliated 90.7   60.4   124.7   160.2  
                 
Nonsectarian 98.8   52.6   123.0   184.6  
Regular 166.1   76.7   195.1   334.9  
Special emphasis 53.6   37.1   87.6   121.7  
Special education 62.6   45.5   39.7   70.7  
                 
Program emphasis                
Regular elementary/ secondary 196.7   148.3   341.2   242.3  
Montessori 39.5   32.9     92.9  
Special program emphasis 158.0   106.5   177.1   214.3  
Special education 61.5   46.1   40.8   68.6  
Vocational/technical 131.1        
Alternative 47.6   28.6   82.7   98.6  
Early childhood 17.7   17.3     25.8 !
                 
Size (number of students)                
Less than 50 21.4   19.8   23.5   25.8  
50 -149 91.8   93.1   94.8   88.7  
150- 299 210.5   207.6   220.2   214.3  
300-499 383.9   383.7   388.4   382.1  
500-749 606.0   591.3   608.4   612.0  
750 or more 1,122.3   1,053.9   1,058.3   1,167.7  
                 
Region                
Northeast 153.6   103.8   279.1   215.5  
Midwest 150.6   117.7   338.3   196.8  
South 152.9   102.5   253.1   201.3  
West 144.7   106.9   276.1   191.7  
                 
Urbancity type                
City 204.4   141.8   350.6   289.8  
Suburban 156.9   115.2   318.5   208.4  
Town 113.3   95.7   168.6   133.5  
Rural 75.0   44.0   124.7   114.6  
! Interpret data with caution. The coefficient of variation for this estimate is between 30 and 50 percent (i.e. the standard error is at least 30 percent and less than 50 percent of the estimate).
† Not applicable.
‡ Reporting standards not met. There are fewer than 15 sample cases.
NOTE: Detail may not sum to totals because of rounding or missing values in cells with too few sample cases. These estimates include private schools that provide instruction for one or more of grades kindergarten through twelve (or comparable ungraded levels).
SOURCE: U.S. Department of Education, National Center for Education Statistics, Private School Universe Survey (PSS), 2017–18.