Coenocorypha aucklandica is endemic to New Zealand. Nominate aucklandica occurs in the Auckland Islands (excluding the main island), huegeli is known from the Snares Islands (3 km²), and meinertzhagenae occurs in the Antipodes Islands (20 km²). In 1997, a tiny population was discovered on Jacquemart Island (0.2 km²), in the Campbell Island group¹. The total population is estimated to number 29,100 birds and is considered stable³. The Auckland Islands hold two thirds of the population.