The region is enormous, but sparsely populated.

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

The Algerian south is very sparsely populated.

Algeria's Sahara is barren and sparsely populated.

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.

Canada is sparsely populated.

It makes things easier if your matrix is sparse.

The region is large, but sparsely populated.

What's New Zealand like? Is it as sparsely populated as Australia?

The moor is very sparsely inhabited.