Ermera is one of the municipalities of Timor-Leste, located in the west-central part of the country. It has a population of 117,064 and an area of 756.5 km2.

Railaco, officially Railaco Administrative Post, is an administrative post in Ermera municipality, Timor-Leste. Its seat or administrative centre is Liho, and its population at the 2004 census was 9,2