There was a specific section of town where they lived. In the mid 1980's when I was selling real estate i was told which blocks were "appropriate" for showing to various clients.
When I was in high school neighbors moved in across the street and we became close. The wife was a fairly new realtor and asked me about the percentage of blacks in the school. Since the Catholic kids, including her daughter, went to their schools, that left the public schools in our area with mostly Jewish kids, some Christians, and some Blacks.
shocked with clients that wanted to avoid the schools due to too many of one or the other group. She ended up leaving that particular real estate office because they lied about the districts to the clients. Today you cannot pretend a house is in a school district when it isn't.
We had an interesting discussion about it, and were also sorry it was needed.