The New York Times tops the league for the most popular online US newspaper sites for May, with 32m visitors and 719m page views.
The figures, produced by comScore, as reported by APPScout, also reveal that an average reader consumed about 22 pages of the content of the Times online.
The second most popular newspaper site was Tribune Newspapers, with 24.7 million visitors combine, followed by Advance Internet, with about 18 million visitors in total last month, comScore reported.
Others in the top 10 include Tribune Newspapers (24.7m), Advance Internet (18m), USA Today (16.8m), Washington Post (16.7m) and the Wall Street Journal (11.3m).
Jeff Hackett, comScore senior vice president, said: "The good news for publishers is that even as print circulation declines, Americans are actually consuming as much news as ever - it's just being consumed across more media.
"The internet has become an essential channel in the way the majority of Americans consume news content today with nearly three out of five internet users reading newspapers online each month."
Source: Editors' weblog