Miss Kumeroa-Green, who is survived by her twin brother, Rihari, and three older siblings, was born in New Zealand but moved to Australia with her family as a child.
The family had lived in the wheatbelt town of Narembeen, 286km east of Perth, for about eight years, Ms Poteka said.
A Givealittle page has been set up to help bring Miss Kumeroa-Green back to New Zealand. Almost $3000 had been raised by this evening.
The person who set up the page wrote that family wanted to bury Miss Kumeroa-Green next to her grandmother.
"Our vision is to bring our baby home to Aotearoa New Zealand to lay her [to] rest by her grandmother Ripeka Rupuha-Green at Namukura Kaiwhaiki Marae, Whanganui. For this to happen and make Hinearo's wish come true, we as a whanau are asking far and wide to search deep in their hearts to GIVE A LITTLE."
Miss Kumeroa-Green's parents could not be contacted but her mother, Trudi Green, posted on Facebook welcoming friends and family to visit "because I need you all".
"Don't be scared. Don't be shy. This is a happy time. Let's celebrate Hine Aro for who she was."
Twin brother Rihari put a childhood photo of the pair on his Facebook page.
"Take it easy up there Hine can't wait to see you again."