Released just five months ago, iOS 6 now accounts for 83 percent of iOS Web traffic in North America, according to Chitika.

The rather impressive statistic comes from a new study on iOS version distribution performed by the third-party analytics company.

To quantify the study, the company sampled millions of mobile ad impressions originating from all types of iDevices on the Chitika Ad Network.

“This data set,” notes Chitika, “is composed of 24-hours’ worth of impressions observed through February 12th, 2013, originating from the U.S. and Canada.”

In other words, that’s around 24 hours following the release of iOS 6.1.1 on Feb. 11. Arriving just a couple of weeks after iOS 6.1, iOS 6.1.1 was released by Apple in order to fix an issue that impacts cellular performance and reliability on the iPhone 4S.

North American iOS Version Distribution

As indicated in the graph above, iOS 6.1.1 already accounted for as much as 1.4 percent of all North American iOS Web traffic shortly after its release.

Together with iOS 6.0 (28.8 percent) and iOS 6.1 (52.8 percent), iOS 6.1.1 brings the distribution of iOS 6 to 83 percent. This high distribution more or less agrees with Apple’s estimation that nearly 300 million iDevices are now on iOS 6.

Contrast this with Google’s own statistics, which show that only 42.6 percent of Android users around the world are on Android version 4.0 or above. Android 4.0 was released way back in October 2011, Android 4.1 in July 2012, and Android 4.2 in November 2012.

As a follow-up, a graph focused on North American iOS version distribution on iPhones only was also generated by Chitika. As you can see below, this resulted in a slightly higher iOS 6 percentage of 84.6 percent.

North American iPhone iOS Version Distribution