How Many People Can Bench 225? Here's the answer from 70 Years of data 

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How many people can bench 225 lbs? Jake Woodruff, Strength and Conditioning Performance Coach and member of the "2 Plate Club," looked at strength data from 70 years to estimate about 1.3 million Americans can bench 225 lbs. Here’s how I came up with that number and some tips for you to join the 2-plate club.
America has about 335 million people.
64 million have a gym membership.
But only 32 million go to the gym twice a week, which someone would likely need to build enough strength to bench 225.
Only elite female lifters can bench 225, so I only included men and narrowed the number to 16 million.
Only intermediate male lifters can bench 225, which means they’d need to lift for a couple of years, further narrowing the number to 8 million.
18-34-year-olds will have the highest number of individuals who can bench 225, so I pulled data from that demographic. The number is now 2.4 million
Weighing 220+ pounds is advantageous to reach a 225 lb bench, so we now have 690,000 Americans.
Then I multiplied that number by 2 to account for people who lift at home to reach about 1.3 million.
I’m not 100% sure if that’s right, but I am sure you can bench 225 lbs in 3 to 24 months if you lift heavy, practice good bench form, and progressively overload your muscles by adding weight or reps each week.