Population Forecast
5 year Forecast - 2%
The current population of the Rapid City, SD Market is 320,589 as of the April 2025 PopStats estimate. PopStat’s Trend models indicate a 5 year population change of 2%, resulting in a Population of 327,048 by April 2030. This percentage change in Population ranks 100th across STI Markets. The Rapid City, SD Market currently ranks 165th in overall population, and will rank 165th by April 2030.
High and Low Range - -1.9% to 9.5%
While the summation of mid range 5 year forecasts foresee a change in Population of 2% for Rapid City, SD Market. The forecast high ranges of these forecasts leaves open the possibility for a Population change as high as 9.5% at 351,167. Similarly a population change as low as -1.9% at 314,405 is not without possibility.
Figure 73: Population Trend and Forecast
10 year Projections - 4.2%
By April 2035 we project the Population of the Rapid City, SD Market to be 334,111 resulting in a change of 4.2% compared to the current Population. This projected percentage change in Population ranks 101st across STI Markets. The Rapid City, SD Market currently ranks 165th in overall population, and will rank 164th by April 2035.
