Population Forecast
5 year Forecast - 1%
The current population of the Chicago-Kankakee, IL-Gary, IN Market is 9,538,088 as of the January 2026 PopStats estimate. PopStat’s Trend models indicate a 5 year population change of 1%, resulting in a Population of 9,635,150 by January 2031. This percentage change in Population ranks 123rd across STI Markets. The Chicago-Kankakee, IL-Gary, IN Market currently ranks 3rd in overall population, and will rank 3rd by January 2031.
High and Low Range - -1.5% to 5.7%
While the summation of mid range 5 year forecasts foresee a change in Population of 1% for Chicago-Kankakee, IL-Gary, IN Market. The forecast high ranges of these forecasts leaves open the possibility for a Population change as high as 5.7% at 10,078,921. Similarly a population change as low as -1.5% at 9,393,474 is not without possibility.
Figure 73: Population Trend and Forecast
10 year Projections - 2.3%
By January 2036 we project the Population of the Chicago-Kankakee, IL-Gary, IN Market to be 9,755,515 resulting in a change of 2.3% compared to the current Population. This projected percentage change in Population ranks 123rd across STI Markets. The Chicago-Kankakee, IL-Gary, IN Market currently ranks 3rd in overall population, and will rank 4th by January 2036.
