It's not clear exactly when the global chart-topper became a Croatian citizen.
Last month, Lorde met Croatian President Kolinda Grabar-Kitarovic at a lunch hosted at Government House in Auckland.
She was photographed with Governor-General Dame Patsy Reddy and Grabar-Kitarovic who was in New Zealand on an official state visit.
During her chat with Maron, she also admitted that her homeland has a housing crisis, which she may have contributed to by purchasing her own home in early 2016 following the success of her debut album, Pure Heroine, and her chart-topping hit Royals.
She paid nearly $3 million for a villa on a quiet street on the border of Herne Bay, Ponsonby and Grey Lynn.
Lorde also said that her American friends "rip the s*** out of me for my accent all the time", including Jack Antonoff, with whom she worked on her latest album Melodrama.