of Historic Places. Demographics As of 2000, the population of Bonnycastle was 4,200 , of which 96.9% are white, 2% are Hispanic, 1% are listed as other, and 0.1% are black. College graduates are 51.7% of the population, people without a diploma or equivalent are 7%. Females outnumber males 52.8% to 47.2% References External links Bonnycastle Neighborhood Association Bonnycastle Neighborhood Plan Images of Bonnycastle (Louisville, Ky.) in the University of Louisville Libraries Digital Collections "Bonnycastle: Estate Eventually Yielded Land for Homes, Mansion for Girls' School and Acreage for Park" — Article by Marcella Johnson of The Courier-Journal Neighborhoods in Louisville, Kentucky Populated places established in 1872 1872 establishments in Kentucky