New York, Oct 19 (IANS): Photo-sharing platform Instagram is the most popular social media site among teenagers in the US, reveals a new survey.

Facebook, which bought Instagram in 2012, was fourth in the popularity scale, showed the results of the survey by Piper Jaffray, a leading investment bank and asset management firm.

Instagram was followed by Twitter and Snapchat.

"Instagram was the most popular social site for 33 percent of teens. In second place was Twitter with 20 percent, and following that was Snapchat with 19 percent,” digitaltrends.com reported on Sunday.

In the survey that involved 9,400 teenagers from households with an average income of $68,000, just 15 percent of teenagers called Facebook the social network of choice.

Although Facebook may be the largest and most popular social network by sheer user numbers across the globe, the results suggest that it has trouble engaging teenagers as much as other social sites that have unique things to offer users, the report said.