In addition to just testing the upload and download speed of your internet connection, the 'Global Stats' page over at the www.speedtest.net website lets you view average available broadband speeds by city and also by carrier.

"Speedtest.net collects over half a million test results each day worldwide. Learn more about speeds in your area by using the tool below."

www.speedtest.net/global.php

Here it shows the top 10 cities in the US for download line-speeds :

Here it shows the top 10 regions in the US for downlink line-speeds :

Here are the average downlink line-speeds for Rhode Island ISP's at the statewide level :

ISP = Internet Service Provider