Population Forecast
5 year Forecast - 13.7%
The current population of the Boise City, ID Market is 1,366,173 as of the January 2026 PopStats estimate. PopStat’s Trend models indicate a 5 year population change of 13.7%, resulting in a Population of 1,552,856 by January 2031. This percentage change in Population ranks 1st across STI Markets. The Boise City, ID Market currently ranks 75th in overall population, and will rank 69th by January 2031.
High and Low Range - 2.4% to 22.5%
While the summation of mid range 5 year forecasts foresee a change in Population of 13.7% for Boise City, ID Market. The forecast high ranges of these forecasts leaves open the possibility for a Population change as high as 22.5% at 1,673,500. Similarly a population change as low as 2.4% at 1,398,810 is not without possibility.
Figure 73: Population Trend and Forecast
10 year Projections - 28.4%
By January 2036 we project the Population of the Boise City, ID Market to be 1,753,672 resulting in a change of 28.4% compared to the current Population. This projected percentage change in Population ranks 1st across STI Markets. The Boise City, ID Market currently ranks 75th in overall population, and will rank 61st by January 2036.
