[1][2] This list article includes surviving or historic round barns in Canada, the United States, and elsewhere.
There were 19 historic round and polygonal barns in Canada identified as surviving in the 1970s, in a list compiled by members of a club and typed up by Katherine Kirkam.
[3] According to Matthew Farfan, nine round barns survive in the Eastern Townships of the province of Quebec, all close to the U.S.
[7] Download coordinates as: As documented here, there are at least 11 surviving octagonal, true round, and other round-type barns in Quebec.
This includes others not in Travis's compilation, such as the Higginson Round Barn, which is an impressive and old one.
44°39′8″N 90°10′27″W / 44.65222°N 90.17417°W / 44.65222; -90.17417 (Central Wisconsin State Fair Round Barn) Numerous round and octagon barns in Kansas, including some already- or since-destroyed ones, are covered in a 1999 Kansas State Historical Society study.