During the heyday of Idaho’s growth boom just a few years ago, the Gem State regularly held a spot as one of the nation’s fastest-growing states.

This year, Idaho did not even make the list of ten fastest-growing states, dropping to 24th with a .8 percent population increase.

Idaho’s population this year increased by 11,984 to 1,595,728, making it the nation’s 39th most populous state, according to Census Bureau state population estimates released Thursday.

Fueled by a gas and oil boom, North Dakota took the top spot as the fastest-growing state, growing nearly three times faster than the nation as a whole.

Idaho’s neighbors Wyoming, Utah and Nevada posted strong population increases last year, ranking respectively 4th, 5th and 6th, nationwide in population percentage increase.

The 10 fastest-growing states from July 1, 2011, to July 1, 2012:

1. North Dakota 2.17 percent

2. District of Columbia 2.15 percent

3. Texas 1.67 percent

4. Wyoming 1.60 percent

5. Utah 1.45 percent

6. Nevada 1.43 percent

7. Colorado 1.39 percent

8. Arizona 1.33 percent

9. Florida 1.23 percent

10. South Dakota 1.19 percent