New Census figures show Idaho’s population growth is slowing.

The number of people living in the Gem State grew 1.2 percent from July 2014 to July 2015 to 1,654,93, compared with a 1.4 percent increase from July 2013 to July 2014.

The Census estimates also show more than a 40 percent downward shift in the growth rate of Idahoans ages 20-39. From July 2014 to July 2015, that age category - identified as the state’s workforce of the future - added only 3,735 people compared with an increase of 6,422 between July 2013 and July 2014.

By the numbers, each of Idaho’s 44 counties experienced population shifts by age. Ada County saw the largest numeric increases across all age groups. Eight other counties – Bonneville, Boundary, Canyon, Jefferson, Kootenai, Teton, Twin Falls and Valley – also saw increases across all age groups.

Butte was the only county to experience a loss in every age group.

Elmore County had the largest numeric decrease for the 19-year-old and younger and the 20-39-year-old groups. Blaine and Clearwater counties had the largest decrease in 40-64 year olds. Only two counties – Butte and Clark – had a decrease 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/