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Date: 6/27/2017
Information Contact 1: Janell Hyer : (208) 332-3570 ext. 3220 : 

Idaho’s Population Aging Faster than Nation’s

Idaho’s population is aging faster than the nation’s according to estimates recently released by the Census Bureau. Idaho seniors – people age 65 and older - increased by 30 percent from mid-2010 to mid-2016 compared with 22 percent for the nation. This group - which includes the oldest four years of the baby boom generation (born between 1946 and 1964) - accounts for 15 percent of the state’s population.

Idaho’s population experienced a significant increase from mid-2015 to mid-2016, up more than 30,000 or 1.8 percent. The growth was across all age groups. Idaho’s population continues to age as the most significant increases continue to be in the 65 and older age group. The 2016 data shows that this age group grew nearly 5 percent from mid-2015.

The 19-and-younger age group and 40 to 64 age group grew by 1 percent while the 20 to 39 age group grew 2 percent. The 0 to 19 and 20 to 39 age groups more than doubled in percentage growth from 2015 to 2016. The 40 to 64 age group has shown growth every year since 2011.

Idaho’s median age of 36.2 was lower than the nation’s at 37.9 as of mid-2016. This means that half the population was older than this age and half younger.

Madison County, home of BYU-Idaho, had the lowest median age by county in the nation at 23.2. Latah County, where the University of Idaho is located, had the state’s second lowest median age at 28.8. There has been very little change in the median age in these two counties since 2010.

Adams County had the highest median age in the state at 54.6. Boise, Clearwater, Custer and Lemhi counties, also with a median age above 50, are dominated by jobs in natural resources industries.

By the numbers, each of Idaho’s 44 counties experienced shifts in population by age. Ada County saw the largest numeric increases across all age groups. Eight other counties – Bonneville, Boundary, Canyon, Elmore, Franklin, Jefferson, Jerome, Kootenai, Madison, Minidoka, Payette, Teton, Twin Falls and Valley – reported increases across all age groups. No counties experienced a loss in every age group. Gooding and Idaho counties had the largest numeric decrease for the 19-and-younger age group with more than 80. Bannock County experienced the largest numeric loss in the 20 to 39 age group with more than 100. Idaho and Lemhi counties had the largest decrease in 40- to 64-year-olds with more than 100. No counties experienced a loss in the 65-and-older age group.

Detailed Idaho data can be found at http://lmi.idaho.gov/census. Detailed data and tables for the nation, states and counties is available on the U.S. Census Bureau website at http://www.census.gov/popest/data/


Idaho Population Change Per Year by Age

IDAHO

7/10-7/11

7/11-7/12

7/12-7/13

7/13-7/14

7/14-7/15

7/15-7/16

All Ages

13,133

11,768

16,100

21,521

19,296

30,312

19 years & younger

-1,396

1,955

297

2,952

2,089

4,769

20-39 years old

2,261

2,719

4,416

5,860

3,350

8,570

40-64 years old

6,405

481

1,073

2,281

3,767

5,416

65 & over years-old

5,863

10,563

10,314

10,428

10,090

11,557

       

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