The kit fox is a fox species of North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

. Its range is primarily in the southwestern United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 and northern and central Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. Some mammalogists classify it as conspecific with the swift fox

Swift Fox

The swift fox is a small light orange-tan fox around the size of a domestic cat found in the western grasslands of North America, such as Colorado, New Mexico and Texas. It also lives in Manitoba, Saskatchewan and Alberta in Canada, where it was previously extirpated...

, V. velox, but molecular systematics imply that the two species are distinct.
The northernmost part of its range is the arid interior of Oregon. Its eastern limit is southwestern Colorado. It can be found south through Nevada, Utah, southeastern California, Arizona, New Mexico, and into western Texas.
The kit fox is the smallest species of the Canidae

Canidae

Canidae is the biological family of carnivorous and omnivorous mammals that includes wolves, foxes, jackals, coyotes, and domestic dogs. A member of this family is called a canid . The Canidae family is divided into two tribes: Canini and Vulpini...

 family that can be found in North America.