According to the National Center for Education Statistics (NCES), the most recent data on the demographic characteristics of public school principals in the United States is from the 2017-18 school year. Here is a statistical breakdown of school principals in the US based on gender, age, and race/ethnicity:

Gender:

• Male: 54.9%
• Female: 45.1%

Age:

• 30-39 years old: 7.3%
• 40-49 years old: 27.9%
• 50-59 years old: 38.4%
• 60 or older: 26.4%

Race/ethnicity:

• White, non-Hispanic: 79.3%
• Black or African American, non-Hispanic: 10.9%
• Hispanic: 7.2%
• Asian, non-Hispanic: 1.4%
• American Indian/Alaska Native, non-Hispanic: 0.6%
• Two or more races, non-Hispanic: 0.6%

Source: National Center for Education Statistics. (2019). Characteristics of Public School Principals in the United States: Results From the 2017–18 National Teacher and Principal Survey. Retrieved from https://nces.ed.gov/pubsearch/pubsinfo.asp?pubid=2019085