I found this document: http://www.census.gov/content/dam/Census/library/publications/2014/acs/acs-28.pdf http://www.census.gov/content/dam/Census/library/publi

I found this document: http://www.census.gov/content/dam/Census/library/publications/2014/acs/acs-28.pdf http://www.census.gov/content/dam/Census/library/publication... Refer to page 3, where it is reported that 74.5% of households 25 years and up had some internet subscription (and 73.5% had high-speed access). That's no small number, but you could easily call "3 in 4" short of ubiquitous. Note that many of the remaining households have some form of access to the internet, just not a subscription at home.