Can 'a small part' be used to refer to people? [closed]

Can 'a small part' be used to refer to people, like A small part still have a radio at home.

Thanks.

You could certainly say that, but I would suggest making the sentence clearer by adding what the people are a part of. Part is defined by Merriam-Webster as:

One of the often indefinite or unequal subdivisions into which something is or is regarded as divided and which together constitute the whole

What this means is that you need a whole in order to have a part. Try saying a small part of the population or a small part of those surveyed where the population and those surveyed are the wholes from which the part a small group is taken from. In short, we need to be able to know what the part is of.