[pash]

Here [0] are the numbers from the most recent five-year estimates of the Census Bureau's American Community Survey, aggregated over the census tracts within the boundaries of the Kansas City Public School District:

    Total population: 192,692
    Race:
      White only: 87,765 (46%)
      Black only: 80,627 (41%)

So my guesstimate was pretty much spot on.

0. http://proximityone.com/sd11dp1.htm