Pursuant to the Resolution passed by the 15th National Assembly during its 9th session on 12^th June 2025, Vietnam officially has 34 provincial-level administrative units, comprising 28 provinces and 6 centrally governed cities.

23 Newly Formed Provinces and Cities:

1. Lao Cai Province: After the merger of Yen Bai and Lao Cai
   • Area: 13,256.92 km²
   • Population: 1,778,785
2. Thai Nguyen Province: After the merger of Bac Kan and Thai Nguyen
   • Area: 8,375.21 km²
   • Population: 1,799,489
3. Phu Tho Province: After the merger of Vinh Phuc, Hoa Binh, and Phu Tho
   • Area: 9,361.38 km²
   • Population: 4,022,638
4. Bac Ninh Province: After the merger of Bac Giang and Bac Ninh
   • Area: 4,718.6 km²
   • Population: 3,619,433
5. Hung Yen Province: After the merger of Thai Binh and Hung Yen
   • Area: 2,514.81 km²
   • Population: 3,567,943
6. Hai Phong City: After the merger of Hai Phong City and Hai Duong
   • Area: 3,194.72 km²
   • Population: 4,664,124
7. Ninh Binh Province: After the merger of Ha Nam, Nam Dinh, and Ninh Binh
   • Area: 3,942.62 km²
   • Population: 4,412,264
8. Quang Tri Province: After the merger of Quang Binh and Quang Tri
   • Area: 12,700 km²
   • Population: 1,870,845
9. Da Nang City: After the merger of Da Nang City and Quang Nam
   • Area: 11,859.59 km²
   • Population: 3,065,628
10. Quang Ngai Province: After the merger of Kon Tum and Quang Ngai
    • Area: 14,832.55 km²
    • Population: 2,161,755
11. Gia Lai Province: After the merger of Binh Dinh and Gia Lai
    • Area: 21,576.53 km²
    • Population: 3,583,693
12. Khanh Hoa Province: After the merger of Ninh Thuan and Khanh Hoa
    • Area: 8,555.86 km²
    • Population: 2,243,554
13. Lam Dong Province: After the merger of Dak Nong, Binh Thuan, and Lam Dong
    • Area: 24,233.07 km²
    • Population: 3,872,999
14. Dak Lak Province: After the merger of Phu Yen and Dak Lak
    • Area: 18,096.40 km²
    • Population: 3,346,853
15. Ho Chi Minh City: After the merger of Ho Chi Minh City, Ba Ria – Vung Tau, and Binh Duong
    • Area: 6,772.59 km²
    • Population: 14,002,598
16. Dong Nai Province: After the merger of Binh Phuoc and Dong Nai
    • Area: 12,737.18 km²
    • Population: 4,491,408
17. Tay Ninh Province: After the merger of Long An and Tay Ninh
    • Area: 8,536.44 km²
    • Population: 3,254,170
18. Can Tho City: After the merger of Can Tho City, Soc Trang, and Hau Giang
    • Area: 6,360.83 km²
    • Population: 4,199,824
19. Vinh Long Province: After the merger of Ben Tre, Tra Vinh, and Vinh Long
    • Area: 6,296.20 km²
    • Population: 4,257,581
20. Dong Thap Province: After the merger of Tien Giang and Dong Thap
    • Area: 5,938.64 km²
    • Population: 4,370,046
21. Ca Mau Province: After the merger of Bac Lieu and Ca Mau
    • Area: 7,942.39 km²
    • Population: 2,606,672
22. An Giang Province: After the merger of Kien Giang and An Giang
    • Area: 9,888.91 km²
    • Population: 4,952,238
23. Tuyen Quang Province: After the merger of Ha Giang and Tuyen Quang
    • Area: 13,795.5 km²
    • Population: 1,865,270

11 Unchanged Administrative Units include:

• Provinces: Cao Bang, Dien Bien, Ha Tinh, Lai Chau, Lang Son, Nghe An, Quang Ninh, Son La, Thanh Hoa
• Cities: Ha Noi, Hue