Since the end of 2009, the US has improved its broadband speed rankings from 22nd to 16th worldwide. From Q4 2009 to Q2 2010, the average broadband speed in the US grew from 3.8Mbps to 4.6Mbps, according to an Akamai broadband survey. Delaware enjoys the fastest connections in the US, and California dominates the top US cities for fast broadband. If you want fast Internet connections, don’t go to Mayotte, Wallis and Futuna, or Cuba.