San Mateo is a census-designated place in Cibola County, New Mexico, United States.

[5] The community has a Catholic church, a Baptist church, a Morada, a cemetery, a Volunteer Fire Department(McKinley County funded) and an old abandoned elementary school.

It is also coined "the Uranium Capital of the World".

San Mateo is 25 miles (40 km) from Grants.

This New Mexico state location article is a stub.