Not sure what data they are using. Here is what I get, and these are not Midwest cities:

Using the latest completed U.S. Census metro-area estimates I could verify — population change from July 1, 2023 to July 1, 2024 — the 5 fastest-growing U.S. metro areas by percentage growth were:

1. Ocala, Florida — 4.0%

2. Panama City–Panama City Beach, Florida — 3.8%

3. Myrtle Beach–Conway–North Myrtle Beach, South Carolina — 3.8%

4. Lakeland–Winter Haven, Florida — 3.5%

5. Provo–Orem–Lehi, Utah — 3.0%

One wrinkle: Daphne–Fairhope–Foley, Alabama also grew 3.0%, so it was effectively tied with Provo–Orem–Lehi on growth rate, though Census ranked Provo 5th and Daphne 6th.