Some of the streets are: Cold Springs, Alpine Meadow Ln, Blue Knob Terr, Bear Valley Terr, Massanutten Dr, just to name a few. The homes in Leisure World that have a 20906 zipcode are technically a Rockville High School zone; however, school busses do not travel within this community because it is a 55+ age community. I know, because a recently looked at a property there on Farnborough Ct. I was told my 16 yr old daughter could not live there because of the "adult only" rule.
The 20906 zip goes to a couple clusters. Most homes south of the ICC go to the Downcounty Consortium except for many homes in the Leisure World area which go to the Rockville Cluster. North of the ICC along Layhill and Norbeck Roads are assigned to the Northeast Consortium.
With very few exceptions, all homes in 20905 go to the Northeast Consortium.
You can see a google map of school boundaries below. Hope that helps.