This report describes housing desegregation gains in Louisville and Jefferson County, Kentucky, largely caused by school desegregation. The work of Judge James F. Gordon, who presided over the school desegregation plan, is cited as instrumental in aiding in this process. He ruled that no child in the minority in a neighborhood would be used for desegregation purposes, which in effect provided encouragement to black families to move into white school attendance areas, thus desegregating neighborhoods. The report finds the following desegregation gains in Louisville and Jefferson County: (1) In 1970, 15 census tracts were all white, and by 1980 the number was cut in half; (2) the percentage of black residents increased in 78.5% of the census tracts between 1970 and 1980; (3) the number of blacks living in suburban areas of Jefferson County increased by 275% between 1970 and 1980; (4) Louisville's desegregation status in 1980 was close to the national average; (5) housing desegregation has continued to increase based on a racial analysis of where the student age population lived in Jefferson County in 1980 and where they lived in 1984; and (6) 88.5% of the 104 census tracts with less than 20% black student age population in 1980 gained in the level of black students by 1984. These and other data are presented statistically and analyzed throughout the report. (CG)