Ilulissat, also Jacobshavn or Jakobshav, is the municipal seat and largest town of the Avannaata municipality in western Greenland, located ap…Ilulissat, also Jacobshavn or Jakobshav, is the municipal seat and largest town of the Avannaata municipality in western Greenland, located approximately 350 km north of the Arctic Circle. With a population of 4,670 as of 2020, it is the third-largest city in Greenland, after Nuuk and Sisimiut. The city is home to almost as many sled-dogs as people.