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Average and median age of private school principals and percentage distribution of principals, by age category, sex, and affiliation: 2017–18

          Percent of principals by
  Average age of principals   Median age of principals   Age   Sex
Affiliation     Less than 45 years   45–54 years   55 years or more   Male   Female  
All private schools 52   52   28.9   27.5   43.5   42.0   58.0  
                             
Catholic, Parochial 53   54   31.1   19.2   49.8   30.4   69.6  
Catholic, Diocesan 52   53   26.2   27.9   45.9   34.9   65.1  
Catholic, Private 52   52   35.7   17.9   46.4   47.9   52.1  
Baptist 54   56   18.1   24.9   57.0   53.1   46.9  
Jewish              
                             
Lutheran 50   48   43.6   24.4 ! 32.0 ! 52.3   47.7  
Seventh-Day Adventist 56   55       65.3   25.9 ! 74.1  
All Other Religious 51   51   31.1   29.2   39.7   50.7   49.3  
Non-sectarian, Regular              
Non-sectarian, Special Emphasis 52   52   27.4   33.6   39.0   21.4   78.6  
Non-sectarian, Special Education 51   49   35.3   27.8   36.9   27.8   72.2  
! Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 percent and 50 percent (i.e., the standard error is at least 30 percent and less than 50 percent of the estimate).
‡ Reporting standards not met. The coefficient of variation (CV) for this estimate is 50 percent or greater (i.e., the standard error is 50 percent or more of the estimate) or the response rate is below 50 percent.
NOTE: Detail may not sum to totals because of rounding and because some data are not shown.
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Teacher and Principal Survey (NTPS), "Preliminary Public School Principal Restricted-Use Data File," 2017–18.