I've road tripped around America extensively and was surprised at how empty most of the country is. I knew it had a lot of space, but the amount of empty space

I've road tripped around America extensively and was surprised at how empty most of the country is. I knew it had a lot of space, but the amount of empty space is staggering. I agree with the premise that we should allow more people in, but the problem comes down to utilities (not food.) Where's the water, gas and electric coming from and where will waste go?