2019 Harmony Day aims to bring multicultural issues to the fore at a time when Miss Wagga Stina Constantine says it's needed most.

That diversity is what Stina Constantine describes as "the greatest thing about Wagga".

But the Miss Wagga winner believes there is still ways to go in promoting national collegiality.

"Parts of Wagga are still polarised around issues relating to immigration, and it's great that we can have those discussions," said the 28-year-old.

"It's about respect and creating a dialogue that anyone can join."

Celebrated each year on March 21, international Harmony Day will be observed in schools and community groups across the city. It is intended to promote solidarity among the many nationalities that have come to make Australia home.

Born to Sri Lankan parents and having lived much of her life in Norway, Ms Constantine is uniquely positioned as the city's first diverse Miss Wagga.

"It naturally has importance this year, I think the vigil the other night showed just how far we've come," she said.

"But in some ways, it still felt stilted, and that's OK.

"It's not something any one of us can do alone, we need to work together as a community."

Ms Constantine will spend Thursday celebrating the multicultural day with various city organisation including the domestic violence action group and Kapooka Primary School.