Since this data is coming from realty trac, I’d question if all of it is accurate.
If you drill down into some of the areas, you’ll notice that there are addresses that are marked foreclosed… But if you dig at the actual addresses, not all of them are “foreclosed”
You can play this game with 92130, and view everything south of 56 (north of 56 is a landmine, because of all the attached home, which makes sifting through the ones in forclosure and ones that aren’t difficult).
south of 56 is mainly SFH, and just looking at the partial addresses, it seems like some of these aren’t even SFH.