14% of US adults smoke: https://www.cdc.gov/tobacco/data_statistics/fact_sheets/adult_data/cig_smoking/index.htm https://www.cdc.gov/tobacco/data_statistics/fac

14% of US adults smoke: https://www.cdc.gov/tobacco/data_statistics/fact_sheets/adult_data/cig_smoking/index.htm https://www.cdc.gov/tobacco/data_statistics/fact_sheets/adul... Only 2.4% of US adults use smokeless tobacco: https://www.cdc.gov/tobacco/data_statistics/fact_sheets/smokeless/use_us/index.htm https://www.cdc.gov/tobacco/data_statistics/fact_sheets/smok... This second link also says that 3.5% of adult smokers also use smokeless tobacco. 3.5% of 14% is 0.49%. So about 0.49% of US adults are dual users of both smoked and smokeless tobacco, leaving about 1.91% of US adults as exclusive smokeless tobacco users.