3.24 million of the diaspora population live in neighboring Jordan where they make up approximately half the population , 1.5 million live between Syria and Lebanon , a quarter of a million in Saudi Arabia , with Chile 's half a million representing the largest concentration outside the Arab world .
Of the diaspora , over two and a half million live in neighboring Jordan , one million is shared between Syria and Lebanon , a quarter million in Saudi Arabia , and Chile 's half a million is the largest concentration outside the Arab world .