How far does the Uto-Aztecan language family extend geographically?

The Uto-Aztecan language family is one of the oldest and most geographically extensive groups of American Indian languages, with a distribution that stretches from Oregon in the north to Panama in the south.12

While the family's range is vast, only the Aztecan (Nahuan) branch is considered to be squarely within Mesoamerica. The Proto-Uto-Aztecan homeland is believed to have been located in what is now Arizona and northern Mexico, potentially extending into southern California. Most of the languages belonging to the Southern Uto-Aztecan subfamily are found within Middle America, though they generally lie outside the specific boundaries of the Mesoamerican culture area.23