The white population of the region described (settlements at the mouth of the Milwaukee river and at Chicago) is said to have numbered about 155,000.

The evidence

• “At the mouth of the Milwaukee river the fur trader, Solomon Juneau, had started a settlement, and at Chicago 200 or 300 people were living under the shelter of Fort Dearborn. Squatters were more numerous than homesteaders and metes and bounds were still indefinite, yet the white population had increased so rapidly that in 1830 it is said to have numbered about 155,000.”

  1908-brown-rock-county/03-black-hawk-war.md, Vol. 1, PDF p. 47 / book p. 38

  Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.

  Grade A: Found on a page of one of our sources