Where is everyone moving in from?

I just visited from California and spent a few days visiting a friend in Columbus. What an amazing city with so much to explore!

He shared that the city is booming so I dug a bit into the population stats and Census data.

The population has been consistently growing over the past few decades (about 10% per decade) whereas the state of Ohio has been mostly flat.

Where is everyone moving in from? Any anecdotal info you can share? Perhaps some big companies have moved in?

I’m very curious to learn more and see if anyone has some info or insights. Thanks!