so you would say that everyone who finishes pharmacy school becomes a pharmacist? everyone?
Yes - by definition, everyone who graduates from pharmacy school is a pharmacist.
However, as Farmercyst mentioned, not everyone chooses to become licensed for any number of reasons.
These numbers are difficult to weed out because we don't have a national licensing authority since even passing the NAPLEX is not sufficient to obtain licensing in some states (CA, for example). Likewise, many pharmacists maintain more than one license.
However, you can get an idea by tracking the NABP survey of state boards which is done annually. The total # of pharmacists licensed by the state boards from July 2005-July 2006 increased by 3.5%to 375,666. A more accurate picture are those pharmacists with in-state addresses increased by 3.7% to 254,556.
But, you can look at CA....the total licensed in that same year were 4,276. I can assure you, there were not 4,000 graduates from CA schools of pharmacy...so many were from other areas.
Some choose not to be licensed at all, particularly if they plan on never having dispensing functions, yet they are still pharmacists.