The name reached its all-time peak in 2017 with 12 births ranking #9012. FALLING Recent data shows the name is currently falling.
Jaxson is a modern spelling form of Jackson and carries the same meaning, "son of Jack". It keeps the popular -son structure while making the name look more custom and contemporary.
This spelling belongs to the broader wave of modern surname-name variants that grew around Jackson's success. Its appeal is mostly visual and stylistic rather than historical.