The country we're most often compared to is Australia, because we're large geographic entities, because of their federal system and cabinet parliamentary system, and because they're a former British colony, and so on.
On the other hand, they have a far more homogeneous society. There's less diversity in Australia. They also have aboriginal populations, indigenous people, and so on. There is more of a unified national political culture in Australia. That's not to say they don't have philosophical and ideological differences among their parties.