It's difficult to find trustworthy statistics quickly, but the penetration of electricity and running water in US households is only about 99%. At the scale of the US (~130 million households), 1% of households lacking electricity equates to over a million households and somewhat more in terms of number of people. So yeah, there's probably about 1-2 million people in the US without running water and/or electricity.
Where are these people? Probably the largest concentration of such people are on the various Native American reservations (I believe ~15% of the Navajo Reservation lacks running water). The hinterlands of Alaska also likely has a high number of these houses.
Where are these people? Probably the largest concentration of such people are on the various Native American reservations (I believe ~15% of the Navajo Reservation lacks running water). The hinterlands of Alaska also likely has a high number of these houses.