Despite a tumultuous 2018, Facebook is still the top social network in the United States, with 169.76 million mobile users accessing the Facebook app in September 2019. The company’s other properties Instagram and Facebook Messenger ranked second and third with 121 and 106 million users respectively.
Cambridge Analytica scandal 2018
The biggest social media company in the world had a difficult 2018. The platform has long been accused of enabling the spread of fake news during the 2016 election and beyond. One of the first and biggest negative Facebook stories of 2018 was the Cambridge Analytica scandal, which unfolded from March 2018. The Guardian, The Observer, and The New York Times simultaneously reported on political data firm Cambridge Analytica harvesting data of millions of Facebook users worldwide without their knowledge before the 2016 election, which led to Facebook CEO Mark Zuckerberg having to testify before Congress in April 2018.
Facebook usage behavior changes
Due to the revelations about Facebook and the company’s treatment of private user data, many U.S. users are planning to use the social network much less and to be much more careful about what they post . During an April 2018 survey, only 20 percent of respondents stated that their Facebook usage has not changed, and they were planning on continuing to use the social platform as much as they always had in the past.
Most popular mobile social networking apps in the United States as of September 2019, by monthly users
(in millions)
Characteristic
Million unique visitors
Facebook (main)
169.76
Instagram (main)
121.23
Facebook Messenger
106.4
Twitter (main)
81.47
Pinterest
66.88
Reddit
47.87
Snapchat
45.98
WhatsApp
25.58
Messenger by Google
17.46
Tumblr
16.74
Discord - Chat for Games
15.01
Google Hangouts (main)
14.19
GroupMe
10.75
Created with Highcharts 7.2.2Million unique visitors169.76169.76121.23121.23106.4106.481.4781.4766.8866.8847.8747.8745.9845.9825.5825.5817.4617.4616.7416.7415.0115.0114.1914.1910.7510.757.727.726.246.245.535.533.763.763.473.473.153.152.622.621.481.48Facebook (main)Instagram (main)Facebook MessengerTwitter (main)PinterestRedditSnapchatWhatsAppMessenger by GoogleTumblrDiscord - Chat for GamesGoogle Hangouts (main)GroupMeKikTikTok (main)Skype (main)TikTokTelegramLINEGoogle+WeChat
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Verto Analytics. (November 12, 2019). Most popular mobile social networking apps in the United States as of September 2019, by monthly users (in millions) [Graph]. In Statista. Retrieved April 25, 2025, from https://www.statista.com/statistics/248074/most-popular-us-social-networking-apps-ranked-by-audience/
Verto Analytics. "Most popular mobile social networking apps in the United States as of September 2019, by monthly users (in millions)." Chart. November 12, 2019. Statista. Accessed April 25, 2025. https://www.statista.com/statistics/248074/most-popular-us-social-networking-apps-ranked-by-audience/
Verto Analytics. (2019). Most popular mobile social networking apps in the United States as of September 2019, by monthly users (in millions). Statista. Statista Inc.. Accessed: April 25, 2025. https://www.statista.com/statistics/248074/most-popular-us-social-networking-apps-ranked-by-audience/
Verto Analytics. "Most Popular Mobile Social Networking Apps in The United States as of September 2019, by Monthly Users (in Millions)." Statista, Statista Inc., 12 Nov 2019, https://www.statista.com/statistics/248074/most-popular-us-social-networking-apps-ranked-by-audience/
Verto Analytics, Most popular mobile social networking apps in the United States as of September 2019, by monthly users (in millions) Statista, https://www.statista.com/statistics/248074/most-popular-us-social-networking-apps-ranked-by-audience/ (last visited April 25, 2025)
Most popular mobile social networking apps in the United States as of September 2019, by monthly users (in millions) [Graph], Verto Analytics, November 12, 2019. [Online]. Available: https://www.statista.com/statistics/248074/most-popular-us-social-networking-apps-ranked-by-audience/
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