They need approximately another 600,000 people give or take a few to get representation in DC.
I think the bordering states would be willing to donate a few counties to bring them up to that number!
They're about halfway there.
The smallest population state is Wyoming, which had a population of 563,626 according to the 2010 census. The same census said the seven counties in NE Colorado (Weld, Logan, Morgan, Phillips, Sedgwick, Washington and Yuma) had a total population of 322,126 -- with Weld County accounting to over 78% of the total.
Grew up in one of those bordering western Kansas counties. There just are not that many people out there! (Maybe if we start at Hays Kansas and go west)!