A pop quiz as another school year gets underway: what is the student-to-teacher ratio in the Pittsburgh Public Schools (PPS)? According to the most recent audited data (2009) the District shows 27,922 students and 2,315 teachers giving a ratio of 12 to 1. That’s only slightly changed from 2000 when the District had 38,560 students and 3,377 teachers for an 11.4 to 1 student ratio.