I barely knew the principal, let alone knew where he lived. 
My school was so small that I graduated in the top 5 of my class.
My school was so small that several of my teachers had taught my 5 older brothers and sisters.
My school was so small there were only 53 in my graduating class and more than half of us had been there since Kindergarten.
My school was so small even the superintendent had an office in the high school and had an open door policy for students.