Population Forecast
5 year Forecast - -1%
The current population of the Sioux City, IA-NE Market is 427,596 as of the April 2025 PopStats estimate. PopStat’s Trend models indicate a 5 year population change of -1%, resulting in a Population of 423,464 by April 2030. This percentage change in Population ranks 153rd across STI Markets. The Sioux City, IA-NE Market currently ranks 152nd in overall population, and will rank 155th by April 2030.
High and Low Range - -2.7% to 5.3%
While the summation of mid range 5 year forecasts foresee a change in Population of -1% for Sioux City, IA-NE Market. The forecast high ranges of these forecasts leaves open the possibility for a Population change as high as 5.3% at 450,202. Similarly a population change as low as -2.7% at 415,871 is not without possibility.
Figure 73: Population Trend and Forecast
10 year Projections - -1.4%
By April 2035 we project the Population of the Sioux City, IA-NE Market to be 421,453 resulting in a change of -1.4% compared to the current Population. This projected percentage change in Population ranks 150th across STI Markets. The Sioux City, IA-NE Market currently ranks 152nd in overall population, and will rank 155th by April 2035.
