Grand Canyon National Park is around the same size as Delaware.

Delaware is approximately 5,060 sq km, while Grand Canyon National Park is approximately 4,863 km² (1,878 sq mi), making Grand Canyon National Park 96.1% the size of Delaware.
Tip: This to-scale comparison of Delaware vs. Grand Canyon National Park uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.