Dave Swenson, an economist at Iowa State University, has unveiled population projections that indicate Iowa will see limited growth through 2020 and lose workers in some key demographics.

Swenson is projecting a loss of 74,142 workers between the ages of 16 and 64. Fueling that will be a loss of older workers and a decline in young workers to replace them.

A large amount of that loss comes from a decrease of 117,203 between ages 45 and 64. Part of the reason: The highest rate of migration out of the state in the last decade was among workers between the ages of 35 and 44.

Projections show a loss of 13,900 workers between the ages of 16 and 24 and a gain of 56,961 workers between the ages of 25 and 44.  

Swenson said in an Iowa State News Service article that he wants policymakers to be aware of how population loss will affect the economy, and that people and jobs will migrate to urban areas.