The Teacher Compensation Review Board’s final report includes data from Department of Education August slides showing that half of South Dakota’s public school students attend the ten largest school districts in the state:
Those are 2022 figures, so 51.3% of South Dakota’s public school students enrolled in just 6.7% of the state’s 149 school districts. (We have 148 districts now, with the consolidation of not-long-for-this-world Oldham-Ramona-Rutland.)
Students aren’t quite as concentrated as general population. According to 2022 Census estimates, the nine counties those districts serve have 62.1% of South Dakota’s population. Of course, each of those counties have multiple smaller schools outside their main urban districts, so both K-12 student counts and total census counts reflect a strong skew of South Dakota’s population toward a few lucky urban centers (or, in the words of my old neighbor Lee Yager, metropolitan madhouses).
We can see the big skew in student enrollment in the big difference between mean and median enrollment. The mean district size is 927 students, 2.7 times larger than the median enrollment of 339. The districts sitting in the middle of the enrollment distribution are all Class B schools:
Newly consolidated Oldham-Ramona-Rutland would leap into the middle of that road with its combined 2022 enrollments of 346.