Joondalup.
Jackson Hole
Jimboomba is a town in Queensland, Australia. It begins with the letter J.
Jordan, Jamaica, Juno
Australian cities or towns beginning with J include:JindabyneJimbourJandowaeJondaryanJerichoJerilderieJeparitJundah
Jealousy is an emotion. It begins with the letter J.
jumanji
Jasmiine
juice
That would be a juniper tree.
Johor Baru
juvie
Some 5-letter words beginning with 'j' are:jabotjauntjazzyjeansjellyjennyjettyjeweljiffyjimmyjointjoistjokerjollyjoulejoustjowlyjudgejuicejuicyjulepjumbojumpyjunkyjuror