 The address is 1501 N. Market Street in Frederick, MD 21701.Gov.Thomas Johnson High has 1,482 students and the demographics are as follows for 2013–2014 year
44.8% White
24.3% African American 
19.4% Hispanic
6.0% Multiracial 
5.2% Asian 
Thomas Johnson's graduation rate has been steadily rising over the past 12 years.