My back of the envelope calculation is that toki pona is 67% Indo European. The rest is Uralic (Finnish), Kartvelian, Altaic (Japanese), Niger-Congo, Afro-Asiatic (Swahili, although Swahili itself has a lot of IE loan words), and Austronesian.
Tok pisin 14%,
Acadian French 10%
Further investigations will be required to identify the toki pona homeland, however, it is clear the toki ponans started out in Europe, hung out with all sorts of people, especially Canadians and ate bread.