Twitter will see global users gains of about 11 percent this year, bringing the micro-blogging site’s total active monthly population to about 286.3 million by the end of 2016, according to recent estimates by digital market research company eMarketer.

Growth at the San Francisco-based social messaging operation, which saw gains of about 9.8 percent in 2015, will bring the site's total population to about 370 million global users by 2020, eMarketer predicts, though gains are expected to begin tapering off after this year.

Twitter

The majority of this growth will happen overseas. Fewer than one in five Twitter users are now in the U.S., according to eMarketer, with non-U.S. Twitter users accounting for 78.9 percent of the site’s user base in 2014 and expected to comprise 80.9 percent by 2018. Only 34.2 percent of Twitter’s ad revenues currently comes from overseas, however, with the U.S. still maintaining Twitter’s largest spending base (about 63 percent), though non-U.S. ad revenues are expected to grow to 38.9 percent by 2018.

Brazil has recently become home to the second-largest Twitter population in the world, with 27.7 million users, followed by Japan (25.9 million) and Mexico (23.5 million), according to eMarketer. eMarketer further predicts that massive recent user gains in India could see that country tie Brazil for second-largest non-U.S. Twitter base by 2019.

eMarketer also predicted in July that Facebook would take the lion’s share of global social media net ad spending this year, with more than two-thirds of ad revenues (67.9 percent) going to that social media giant (about $22.4 billion), while Twitter is expected to take in only 7.9 percent globally. More than half of Facebook’s 2016 revenues — about $12.08 billion this year — is now expected to come from outside the U.S.