York City has more Twitter users than other cities. According to Quancast, 27 million people in the US used Twitter as of September 3, 2009; 63% of Twitter users are under 35 years old; 60% of Twitter users are Caucasian, but a higher than average (compared to other Internet properties) are African American/black (16%) and Hispanic (11%); 58% of Twitter users have a total household income of at least US$60,000. The prevalence of African American Twitter usage and in many popular hashtags has been the subject of research studies. On September 7, 2011, Twitter announced that it had 100 million active users logging in at least once a month and 50 million active users every day. On March 31, 2014, Twitter announced that there were 255 million monthly active users (MAUs) and 198 million mobile MAUs. In 2013, there were over 100 million users actively using Twitter daily and about 500 million tweets every day, with about 29% of users checking Twitter multiple times a day. , Twitter had more than 330 million monthly active users. The majority of Twitter users skew to the American political left.Deen Freelon Associate Professor in the Hussman School of Journalism and Media, Tweeting Left, Right & Center: How users and attention are distributed across Twitter, Knight Foundation. In 2012, the country with the most active users on Twitter was the United States. A 2016 Pew research poll found that Twitter is used by 24% of all online US adults. It was equally popular with men and women (24% and 25% of online Americans respectively), but more popular with younger (36% of 18–29 year olds) generations. A 2019 survey conducted by the Pew Foundation found that Twitter users are more likely than the general public to have both a college degree and higher income than the average U.S. adult. Users are also three times as likely to be younger than 50 years old, with the median age of adult U.S. users being 40 years old. The survey found that 10% of users who are most active on Twitter are responsible for 80% of all tweets, focusing mainly on the topics of politics and women. Content San Antonio-based market-research firm Pear Analytics analyzed 2,000 tweets (originating from the United States and in English) over a two-week period in August 2009 from 11:00 am to 5:00 pm (CST) and separated them into six categories. Pointless babble made