Kentucky's population is expected to increase by 10.4% despite 79 of its counties facing a decline by 2040.

That's according to a study released by the Kentucky State Data Center at the University of Louisville.

The majority of Eastern Kentucky's population is expected to decrease.

Out of the top five counties predicted to lose a large percentage of their population by 2040, three are in Eastern Kentucky.

Leslie, Breathitt and Knott counties are expected to lose more than 25% of their residents.

The numbers surprised leaders in Knott County.

"Well, it's very concerning and we need to figure out ways to combat this," said Knott County Judge Executive, Zachary Weinberg.

In 2015, it was estimated that more than 15,000 people lived in Knott County but by 2040, they're predicting that slightly more than 11,000 people will live in the county, which is a 29.5% decrease.

A main reason for the decline, could be the coal industry.

"Jobs are the number one concern and it is a challenge," said Weinberg. "You know there's been a lot of regulation and just the market for coal has declined and it's a challenge to overcome."

They hope trail rides and community events will draw people into the area, while also encouraging them to stay.

"We've got a lot of stuff going on right now bringing people to our county from different areas," said Park and Recreation and Tourism Director, Chris Amburgey. "But the key is trying to get something established permanently day in and day out where people will move to our county."

They hope the predictions do not become reality.

The study looked at mortality, fertility, migration, group quarters and household sizes to make the predictions.

You can read the full study