Six degrees of separation between us and everyone else on this planet. The President of the United States, a gondolier in Venice, just fill in the names. I find it A) extremely comforting that we're so close, and B) like Chinese water torture that we're so close because you have to find the right six people to make the right connection...
7.5 Billion (2017) The current world population is 7.5 billion as of March 2017 according to the most recent United Nations estimates elaborated by Worldometers. The term World Population refers to the human population (the total number of humans currently living) of the world.
The current population of the United States of America is 325,725,566 as of Thursday, January 18, 2018, based on the latest United Nations estimates. the United States population is equivalent to 4.3% of the total world population. the U.S.A. ranks number 3 in the list of countries (and dependencies) by population. The population density in the United States is 35 per Km 2 (92 people per mi 2). The total land area is 9,147,420 Km2 (3,531,837 sq. miles) 83.4 % of the population is urban (270,683,202 people in 2018) The median age in the United States is 37.8 years.