Wikipedia
Donostialdea is one of the eight regions of Gipuzkoa, Basque Autonomous Community, corresponding to the basin of the lower Urumea along with a strip of basin corresponding to the Oria River, the region borrowing its name after the capital city of Gipuzkoa Donostia-San Sebastian, in Spain. The region comprises eleven municipalities extending in an area of 305.72 km (see below, data released in 2006). It borders in the east with the region or subcomarca of Oarsoaldea, on the south with Leitzaldea or Norte de Aralar in Spanish ( Navarre), on the west with Urola Kosta and on the north with the Bay of Biscay.
Municipality
Mayor
Party
Population
(2010)
% Population
Area km²
1
Donostia-San Sebastián
Juan Carlos Izagirre
Bildu
185,510
57.0
60.89
2
Errenteria
Julen Mendoza Pérez
Bildu
39,010
12.0
32.26
3
Hernani
Luis Intxauspe Arozena
Bildu
19,317
5.9
39.82
4
Lasarte-Oria
Pablo Barrio Ramírez
Bildu
17,863
5.5
6.01
5
Pasaia
Amaya Aguirregabiria Alberdi
Bildu
15,988
4.9
11.34
6
Andoain
Ana Maria Karrere Zabala
Bildu
14,670
4.5
27.17
7
Oiartzun
Aiora Pérez de San Román
Bildu
9,957
3.1
59.71
8
Urnieta
Mikel Pagola Tolosa
EAJ/PNV
6,166
1.9
22.4
9
Lezo
Ainhoa Zabalo Loyarte
Bildu
6,034
1.9
8.59
10
Usurbil
Mertxe Aizpurua Olano
Bildu
6,006
1.8
25.64
11
Astigarraga
Andoni Gartzia Arruabarrena
Bildu
4,714
1.4
11.89
Donostialdea
325,235
100
305.72