The area of Hung Yen province is 923.1 square kilometers.
The population of Hung Yen province is 1,120,300.
The area of Yen Hung District is 332 square kilometers.
The area of Yen Bai province is 6,899.5 square kilometers.
The area of Phu Yen province is 5,045.3 square kilometers.
Hung Yen was created on 2009-03-05.
The population of Yen Hung District is 137,198.
Phu Yen province's population is 862,000.
Yen Bai province's population is 750,200.
Yen-tsu Hung has written: 'Hsing-t'ing che kao'
The population density of Yen Bai province is 109 people per square kilometer.
The area of Vinh Yen is 50.87 square kilometers.
The area of Yen Bai is 58 square kilometers.