In comparison with the member states of the European Union (EU), Croatia's median equivalent household income in terms of the Purchasing Power Standard (PPS) stands at 470, topping average PPS of the ten countries which joined the EU in 2004 (EU10), as well as Romania and Bulgaria, while significantly lagging behind the EU average. Within Croatia, the highest PPS is recorded in Istria County (769), the City of Zagreb (640) and the Primorje-Gorski Kotar County (576). The lowest PPS is observed in the Bjelovar-Bilogora County and the Virovitica-Podravina County (267).