Yàyì zài zhège chéngshì de rénkǒu bǐlì búduàn zēngjiā.
The proportion of Asian residents in this city keeps growing.
Tips
usage
亚裔 specifically refers to people of Asian descent living outside Asia. Within Asia, you'd just say the nationality. The 裔 suffix works like English '-descent': 华裔 (Chinese descent), 韩裔 (Korean descent).