According to this article in Wikipedia:
North Korea is almost completely isolated from the rest of the world and, while there is a public telephone network, there is no broadband data network. According to one report released in 2009, many North Koreans had never heard of the Internet.
Is there any data available indicating whether anyone is connecting to one of the SE sites with an IP from North Korea?
(Using this query I could find two users who claim that they are from North Korea, but that's not very conclusive.)