Population Forecast
5 year Forecast - 10.7%
The current population of the Idaho Falls-Pocatello, ID Market is 518,353 as of the January 2026 PopStats estimate. PopStat’s Trend models indicate a 5 year population change of 10.7%, resulting in a Population of 573,573 by January 2031. This percentage change in Population ranks 3rd across STI Markets. The Idaho Falls-Pocatello, ID Market currently ranks 143rd in overall population, and will rank 140th by January 2031.
High and Low Range - 1.1% to 15.9%
While the summation of mid range 5 year forecasts foresee a change in Population of 10.7% for Idaho Falls-Pocatello, ID Market. The forecast high ranges of these forecasts leaves open the possibility for a Population change as high as 15.9% at 600,605. Similarly a population change as low as 1.1% at 524,119 is not without possibility.
Figure 73: Population Trend and Forecast
10 year Projections - 20.9%
By January 2036 we project the Population of the Idaho Falls-Pocatello, ID Market to be 626,554 resulting in a change of 20.9% compared to the current Population. This projected percentage change in Population ranks 3rd across STI Markets. The Idaho Falls-Pocatello, ID Market currently ranks 143rd in overall population, and will rank 136th by January 2036.
