Palestinians in Jordan refers mainly to those with Palestinian refugee status currently residing there. Sometimes the definition includes Jordanian citizens with full Palestinian origin. Most Palestinian ancestors came to Jordan as Palestinian refugees between 1947 and 1967. Today, most Palestinians and their descendants in Jordan are fully naturalized, making Jordan the only Arab country to fully integrate the Palestinian refugees of 1948. Palestinians are overwhelmingly concentrated in northern and central Jordan, specifically in the Amman Governorate, Zarqa Governorate and Irbid Governorate.