The proportion of South Dakota's population age 65 and older has been growing steadily since 2011 while the population of 5-17 and 18-64 year-olds has stabilized. The 65+ population has increased by 13.46 percent since 2011, compared to a 2.12 percent rise in the 0-4 age group. See the table below for growth rates since 2011 for all age groups.
|Age Group||Growth from 2011-2015|
The population of residents age 65 and older has dramatically increased in the Black Hills region compared to the state as a whole. The Black Hills 65+ population has grown by 21.63 percent since 2011 compared to a 13.46 percent increase for this age group statewide.
The increase in residents age 65 and older has augmented the retirement-to working-age ratio statewide which has grown by 2.6 percent since 2011.
This trend follows projections by demographers who say that the United States population of 65+ individuals will dramatically increase within the next 50 years due to the aging of the baby boomer generation. Read this article from the Population Reference Bureau for more in-depth information on this topic.