Cost of living in McAllen, Texas (United States) is 18% more expensive than in Almería (Spain)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 275 prices entered by 27 different people.
For example, you would need at least €2,468 ($2,838) in McAllen, Texas to maintain the same standard of living that you can have with €2,100 in Almería.