Who enjoys the fastest internet? South Koreans do, according to Ookla- the average South Korean Internet connection is more than 3x faster than the average connection in the US. Eastern European countries like Latvia and Lithuania are also at the top of the pool. Within the US, there is tremendous variation by state. Delaware, a very small state, has the fastest connections (comparable to those in Belgium), whereas Alaska, the biggest state, has the slowest connections (comparable to those in Serbia).