The area of Yen Bai is 58 square kilometers.
The area of Yen Bai province is 6,899.5 square kilometers.
The population of Yen Bai is 78,016.
Yen Bai province's population is 750,200.
Yen Bai mutiny happened on 1930-02-10.
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 My District is 91 square kilometers.
The area of Phuc Yen is 120 square kilometers.
The cast of Thi Tran Yen Tinh - 1986 includes: Bai Binh Bui Trinh Thinh
The area of Ham Yen District is 898 square kilometers.
The area of Tan Yen District is 203.7 square kilometers.
The area of Yen Lap District is 437 square kilometers.