How many smokers in the United States?

Hello.

There are an estimated 46 million smokers in the United States.

See:

"According to the Centers for Disease Control and Prevention (CDC),
more than 46 million Americans smoke cigarettes..."
source: American Dental Hygenists Association
http://www.adha.org/media/facts/tobacco.htm

"... once a year, the American Cancer Society asks this country?s
estimated 46 million smokers to put their vice aside for 24 hours to
become that much healthier."
source: The Short Horn
http://www.theshorthorn.com/archive/2004/fall/04-nov-16/o111604-03.html

"An estimated 46 million Americans smoke, with more than 8 million of
these smokers living with serious illnesses caused by their
addiction."
source: The Sumter Item, on Tobacco.org
http://www.tobacco.org/news/182094.html

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search strategy:
"million Americans smoke"
"million smokers"

I hope this helps.