Mendexa has the highest population density in the valley: per km². That is, Mendexa doubles Aulesti´s population density, and almost trebles Munitibar´s. But as far as daily life is concerned, this data cannot be considered real: many of those who appear in Mendexa´s census in fact; they chose Mendexa as a dormitory town in view of the scarcity and expensiveness of the properties in Lekeitio.
There are living in Mendexa. It has an area of 6,69 km² and is divided into four neighbourhoods: Iturreta, Leagi, Likona and Zelaia. The last one is the town centre.
| NEIGHBORHOOD | POPULATION | ||
|---|---|---|---|
| 1992 | 1999 | 2008 | |
| Zelaia | 88 | 99 | 146 |
| Iturreta | 71 | 56 | 65 |
| Leagi | 56 | 42 | 63 |
| Likona | 127 | 145 | 160 |
| Total | 342 | 342 | 434 |