The population of Ireland is 4.595 million people while Spain's population is 47.27 million, making Spain's population significantly larger. Spain also has a larger total land area than Ireland, at 504,645 km2 compared to Ireland's 70,273 km2. Both countries use the euro as currency. The "Palace Episcopal" monument in Ireland is larger than the "Parque Fenix" monument in Spain. The flags of Ireland and Spain are different from each other.