Question

About how much land in the United States is covered with impervious surfaces (buildings, paving, etc.), and about how much is covered in non-agricultural grass (lawns, golf courses, etc.)? Answer in units of square miles (or square kilometers).

Answer

Impervious services cover about 43,000 square miles (111,000 square kilometers) of the United States, and non-agricultural grass covers about 30,000 square miles (77,700 square kilometers).