Monthly cost in dollars for a couple if we consider price of food, car gasoline, electricity, water, garbage, heating, mobile, internet, clothing, rent, household supplies, electronics.

1333 - Valencia, Spain
1400 - Malaga, Spain
1451 - Sevilla, Spain
1501 - Zaragoza, Spain
1744 - Madrid, Spain
1764 - Bilbao, Spain
1779 - Barcelona, Spain

Average : 1567$ per month.

Source : Numbeo.