The Algerian south is very sparsely populated.

Algeria's desert regions are very sparsely populated.

Canada is one of the most sparsely populated countries in the world.

The moor is very sparsely inhabited.

Algeria's Sahara is barren and sparsely populated.

The region is large, but sparsely populated.

It makes things easier if your matrix is sparse.

Having formerly supported construction of a $400 million bridge over Alaska’s Inside Passage, Sarah later made fun of the idea, saying it would have been “a bridge to nowhere.” Although the bridge was never built, Alaska spent $26 million to build “a road to nowhere,” a five-kilometre two-lane gravel road across a small portion of a sparsely populated island.

Tom lives a very simple life in a sparsely furnished apartment.

Canada is sparsely populated.