Here's a more detailed breakdown:
* Eastern Chipmunk: Found in eastern North America, from southern Canada to northern Georgia.
* Western Chipmunk: Found in western North America, from British Columbia to California and south to Mexico.
* Least Chipmunk: Found in the southeastern United States, from Texas to Virginia.
* Cliff Chipmunk: Found in the western United States, from Montana to California.
So, while they're commonly associated with North America, there are also other chipmunk species found in Asia and Europe. However, those are not native to those continents and were likely introduced by humans.