Clark County, NV is estimated to have 1.6 million residents, however, the census bureau must now poll its population on an on going basis, because of its rapid expansion.
Las Vegas is the largest US City founded in the 1900's, which is pretty cool.
That would mean that our sewage, water, yadayada, are all pretty much state-of-the-art as far as the country goes.
Yuck...lol.
I just took a census poll.
The agent was very friendly (coming from Illinois). He said, the Federal Government grants money based on population, and more or less, Las Vegas was getting screwed.