Autonomous communities
- Communities
- 15
- Of 56,049 hm³
- 32,062 hm³
- National level
- 57.2%
- 1La RiojaReservoirs: 5Capacity: 190hm³Stored water: 59hm³Level: 31.05%
- 2Comunitat ValencianaReservoirs: 21Capacity: 1,595hm³Stored water: 515hm³Level: 32.29%
- 3NavarraReservoirs: 7Capacity: 534hm³Stored water: 174hm³Level: 32.58%
- 4AragónReservoirs: 43Capacity: 5,015hm³Stored water: 2,084hm³Level: 41.56%
- 5Castilla y LeónReservoirs: 43Capacity: 8,120hm³Stored water: 3,814hm³Level: 46.97%
- 6Región de MurciaReservoirs: 8Capacity: 585hm³Stored water: 282hm³Level: 48.21%
- 7GaliciaReservoirs: 36Capacity: 3,266hm³Stored water: 1,642hm³Level: 50.28%
- 8CantabriaReservoirs: 3Capacity: 575hm³Stored water: 307hm³Level: 53.39%
- 9Asturias / AsturiesReservoirs: 7Capacity: 451hm³Stored water: 249hm³Level: 55.21%
- 10Castilla-La ManchaReservoirs: 37Capacity: 5,724hm³Stored water: 3,313hm³Level: 57.88%
- 11Comunidad de MadridReservoirs: 13Capacity: 1,060hm³Stored water: 639hm³Level: 60.28%
- 12EuskadiReservoirs: 8Capacity: 310hm³Stored water: 187hm³Level: 60.32%
- 13ExtremaduraReservoirs: 43Capacity: 14,444hm³Stored water: 9,174hm³Level: 63.51%
- 14CatalunyaReservoirs: 24Capacity: 1,983hm³Stored water: 1,266hm³Level: 63.84%
- 15AndalucíaReservoirs: 77Capacity: 12,197hm³Stored water: 8,357hm³Level: 68.52%
