Worldwide, are an estimated 50 to 61 million golfers. In the United
States, there are an estimated 26 to 37 million golfers.
"According to Sports Marketing Surveys, there are 61.1 million golfers
worldwide; 6.9 million in Europe, 13.6 million in Asia, 1.7 million in
Australasia, 1 million in South America and 500 000 in South Africa.
There are 37.1 million in the US alone."
source: Business Report, 9/28/2003
"...the world's 57 million golfers."
source: Knight Ridder, 9/12/2004
"About 50 million people play golf worldwide."
"...America's 27 million golfers"
"How many golfers are there in the U.S.?
There are 26.2 million golfers in the United States. A golfer is
defined as anyone ages 18 and above who played at least one regulation
round of golf in the past 12 months. 36.7 million Americans are golf
participants, defined as anyone ages 5 and above who either played a
round of golf or visited a golf practice facility."
source: National Golf Foundation
"million golfers" worldwide
"world's * million golfers"
"million americans play golf"
I hope this helps.