It is composed of 18 municipalities, Beasain, Ordizia and Lazkao being the main towns.

The region is traditionally Basque-speaking, having a higher proportion of Basque speakers than other comarcas in Gipuzkoa.

According to data from 1996, around half the population of Goierri speak Basque as a mother tongue.

Basque is the dominant language in education in the area, for example, Lazkao's San Benito Ikastola and Ataun San Martin's Joxemigel Barandiaran Eskola teaching exclusively through the Basque language with the exception of Spanish lessons.

This article about a location in the Basque Country, Spain, is a stub.