Prehistoric cultural affiliation(s) include Blackduck, Laurel and Native American dating back to 1000 BC.
The famous person Ernest C. Oberholtzer is associated with one of more of the Koochiching County historic places.
Some of the country's most noteable architects helped create the Koochiching County places including Emil Johnson, Ernest C. Oberholtzer, C.E. Bell, Tyrie and Chapman Bell, Coons, E. W., Inc., Nairme Fisher and Minnesota Highway Department. Prominent architectural styles found in Koochiching Country are Art Deco and Classical Revival.