Lansdowne-Baltimore Highlands was a census-designated place (CDP) in Baltimore County, Maryland, United States.

At the 2010 census the area was split into two separate CDPs, the unincorporated communities of Lansdowne and Baltimore Highlands.

As of the census[2] of 2000, there were 15,724 people, 5,796 households, and 4,190 families residing in the CDP.

There were 6,041 housing units at an average density of 1,474.1 per square mile (569.2/km2).

21.8% of all households were made up of individuals, and 7.7% had someone living alone who was 65 years of age or older.