Underwood's bonneted bat ranges from the southwestern United States through western Mexico to Central America. Confirmed information about its roosts is limited.
A small, rounded tragus is noted as a useful feature for distinguishing it from similar bonneted bats.
A hollow tree in Jalisco, Mexico, is a confirmed roost record. Use of cliff crevices is suggested but remains unconfirmed in the account.
An extinction-risk assessment has not been added yet.