Buckmaster's Circle's population is 700.
The Buckmasters website is a site about hunting deer. You can find where to purchase gear, view photos, an online store, and you can sign up for their newsletter by entering your email.
309
The population of University Circle is 9,469.
The population of The Parents Circle-Families Forum is 13.
The population of Circle K Sunkus is not available as it is a retail convenience store chain, not a residential area. It operates a network of stores across Japan, primarily focusing on providing retail services to customers.
About 5%
about 1.4 million people
The airport at Fort Yukon, Alaska is about 1.5 miles north of the Circle. That might not be accepted as a valid answer to the question, since the population of Ft. Yukon is only 595. Fairbanks, population 35,100, is about 79 miles south of the Circle, whereas Barrow, population 4,580, is about 325 miles north of it.
Murmansk
Rovaniemi (in Finland), which lies slightly south of the line, has a population of approximately 60,000, and is the largest settlement in the immediate vicinity of the Arctic Circle.
The Arctic Circle runs through the city of Salekhard, Russia. Salekhard had a population of 42,544  in 2010.
The three largest communities north of the Arctic Circle are situated in Russia and Norway: Murmansk(population 307,257), Norilsk (175,365), and Tromsø (71,295).