Source Data Reference for:

City = Chicago
Time = 1850

City Year Size Size Comment Year Comment Author Title Location
Chicago1850 28,000Tertius ChandlerFour thousand years of urban growthp53
Chicago1850 30,000Jan Lahmeyerhttp://www.populstat.info/n/a
Chicago1858 100,000passed for the 1st timeTertius ChandlerFour thousand years of urban growthp542
Chicago1861 124,000Tertius ChandlerFour thousand years of urban growthp54