Luke Reimer grew up in Killara and played for Lindfield Junior Rugby Club and attended primary school at Lindfield East Public School (LEPS) in Sydney, NSW.[4] He attended Barker College graduating in 2018.
In 2018, Reimer was awarded the "Bronze Boot Award".[5] It is awarded to one player from each team ‘For the most constructive player in a Schools Test series’. It is now seen as the most prestigious award for test matches between the Australian and New Zealand Schoolboys