Where exactly is “Westlake” in Austin? Well, it depends on which boundaries you use. In the broadest sense, “Westlake” is considered to be those areas which attend Westlake High School, or those areas within the Eanes ISD boundaries, as shown on this map.
So, in general terms, the area west of Austin known as “Westlake” is everything that feeds into Eanes ISD schools.
If a buyer tells us they want a home that attends “Westlake Schools”, we will restrict the search in the Austin MLS to homes where School District = Eanes ISD aka “Westlake Schools”.
Many people also think of “Westlake” as the 78746 zipcode. In fact, the entire 78746 zipcode is contained within the boundaries of Eanes ISD, except for a small southern portion that crosses Barton Creek into the Barton Creek Greenbelt and Austin ISD. None of that area is developed though, so all homes in the 78746 zipcode attend Eanes ISD schools.
The 78733 zipcode is also contained within Eanes ISD. This includes neighborhoods such as Barton Creek West and Cuernavaca. But if you ask people there where they live, they are more likely to self-identify with the neighborhood rather than say “Westlake”. See map below.