Triplets make up a quarter of students at outback ...

For kindergarten students, walking into their new classroom on the first day of school can be a daunting experience.

Key points: Urandangi is a small town on the Queensland/Northern Territory borderThe school has 12 students, three of which are the principal's triplets The triplets are the only members of 2021's kindergarten class at the school

But for the three students starting kindy in Urandangi, 187 kilometres south-west of Mount Isa, on the Queensland-Northern Territory border, it won't be too scary because they have known each other since before they were born.

The three-year-old Dunn triplets – identical twins Parker and Jasper and their sister Mackenzie – are also stepping into the kindy room knowing the school principal — their dad, Leigh Dunn.

Mr Dunn said he and his partner had been busy making sure the triplets were ready to go to kindy.

"There's some routines being put in place," he said.

"I gather there's going to be some teething problems for the beginning and we'll address each other as they arise."

The triplets also make up one quarter of the school's student population.

Mr Dunn said the school was a "one in, all in affair", with two classrooms separating its 12 students.

The addition of the triplets will bring the school's student total to 12.(Supplied: Leigh Dunn) 'Everyone knows each other'

The triplets will not be the only set of multiples in the dozen, with a set of twins in the higher grades as well.

"We are a K-6 school, our 'K' being our kindy students … my own three-year-old, going into four-year-old, triplets," he said.

"It's a little bit daunting being the principal, but we have a new teacher this year who has a background in early childhood, I think it's going to be great for our three — we have two boys and a girl and they are absolutely excited.

"The good thing is they know all the students that come to school, they've already met their teacher, their teacher lives next door." Find more local news

Mr Dunn said the opportunity to become the small school's principal came up and his family took on the adventure without a second thought.

"There's two reasons," he said.

"One, it's a start for my leadership journey — but two, is a chance to give my own children an opportunity to experience something they'll never get to experience living in a metropolitan or large regional city," he said.

"Being a small town of around 21, everyone knows each other."

The Urandangi State School sign, painted by the students.(Supplied: Leigh Dunn)