Phường Trị An was officially established by merging the natural area and population of Xã Mã Đà, Xã Trị An, Thị trấn Vĩnh An. If you are looking for information about Mã Đà after merger, Trị An after merger, Vĩnh An after merger or administrative boundary changes in this area, this is the official portal updated according to Resolution 30/2026/QH16 of the National Assembly.
🏘️
Phường Trị An
Dong Nai Centrally Governed City
📅 Effective from April 30, 2026
Merged from 3 old units
3
Merged Old Units
📍
1
Key Places
🔄 Merger History
Phường Trị An was formed by merging 3 old administrative units:
📋
Xã Mã Đà
Đồng Nai, Vĩnh Cửu
📋
Xã Trị An
Đồng Nai, Vĩnh Cửu
📋
Thị trấn Vĩnh An
Đồng Nai, Vĩnh Cửu
Legal basis: Đề án 379/ĐA-CP năm 2025
📍 Geographical Location
Phường Trị An is located in Dong Nai Centrally Governed City, Southeast region, Vietnam.
📍 Phường Trị An, Dong Nai City
Open Google Maps ↗
🏭 Key Places in Phường Trị An
Phường Trị An is a hub for many important economic, tourism, and service establishments of Dong Nai City:
🏖️
Hồ Trị An
Du lịchHồ Trị An là một điểm đến du lịch Sinh thái nổi tiếng tại Thành phố Đồng Nai, thu hút đông đảo du kh...
❓ Frequently Asked Questions
According to Resolution 30/2026/QH16, Xã Mã Đà was merged to form Phường Trị An under the centrally governed Dong Nai City. The entire administrative boundary of the old Mã Đà is now within Phường Trị An.
The Mã Đà area (formerly belonging to Đồng Nai, Vĩnh Cửu) now belongs to Phường Trị An. Citizens can go to the administrative headquarters of Phường Trị An to process paperwork and land procedures.
According to Resolution 30/2026/QH16, Xã Trị An was merged to form Phường Trị An under the centrally governed Dong Nai City. The entire administrative boundary of the old Trị An is now within Phường Trị An.
The Trị An area (formerly belonging to Đồng Nai, Vĩnh Cửu) now belongs to Phường Trị An. Citizens can go to the administrative headquarters of Phường Trị An to process paperwork and land procedures.
According to Resolution 30/2026/QH16, Thị trấn Vĩnh An was merged to form Phường Trị An under the centrally governed Dong Nai City. The entire administrative boundary of the old Vĩnh An is now within Phường Trị An.
The Vĩnh An area (formerly belonging to Đồng Nai, Vĩnh Cửu) now belongs to Phường Trị An. Citizens can go to the administrative headquarters of Phường Trị An to process paperwork and land procedures.
Phường Trị An was formed from 3 old administrative units including: Xã Mã Đà, Xã Trị An, Thị trấn Vĩnh An. These units formerly belonged to Vĩnh Cửu.
After the merger, Phường Trị An no longer belongs to any district. Dong Nai City operates on a 2-tier model: City → Ward/Commune. All former district-level units have been abolished.
Documents (Red Book, ID card, household registration) issued before April 30, 2026, in the Phường Trị An area remain legally valid until they expire or are replaced. Immediate replacement is not mandatory if there is no need.