| Dachengzi Town | |
| Native Name: | 大城子镇 |
| Settlement Type: | Town |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Municipality |
| Subdivision Name1: | Beijing |
| Subdivision Type2: | District |
| Subdivision Name2: | Miyun |
| Area Total Km2: | 142.2 |
| Population Total: | 9443 |
| Population As Of: | 2020 |
| Population Density Km2: | auto |
| Coordinates: | 40.3919°N 117.1028°W |
| Utc Offset: | +8 |
| Pushpin Map: | Beijing#China |
| Postal Code: | 101502 |
| Postal Code Type: | Postal code |
| Area Code: | 010 |
| Subdivision Type3: | Village-level Divisions |
| Subdivision Name3: | 1 community 22 villages |
| Timezone1: | China Standard |
| Elevation M: | 222 |
Dachengzi Town is a town located in the Miyun District of Beijing, China.[1] It sits within a valley, with Hongmenchuan and Qingshui Rivers flow through it. The town borders Taishitun and Beizhuang Towns in its north, Shangshidong Township and Liudaohe Town in its east, Zhenluoying and Dahushan Towns in its south, and Jugezhuang Town in its west. Its population was 9,443 in 2020.[2]
The name Dachengzi comes from Dachengzi Village, the place where the town's government resides in.[3]
| 1958 - 1961 | Dachengzi Township | Miyun County, Beijing |
| 1961 - 1983 | Dachengzi People's Commune | |
| 1983 - 2000 | Dachengzi Township | |
| 2000 - 2015 | Dachengzi Town | |
| 2015–present | Miyun District, Beijing |
By the end of 2021, Dachengzi Town administered 23 subdivisions: 1 community and 22 villages. They are listed as follows:[4]
| Subdivision Names | Name Transliteraions | Type | |
|---|---|---|---|
| 宏城 | Hongcheng | Community | |
| 北沟 | Beigou | Village | |
| 梯子峪 | Tiziyu | Village | |
| 墙子路 | Qiangzilu | Village | |
| 南沟 | Nangou | Village | |
| 下栅子 | Xiazhazi | Village | |
| 苍术会 | Cangshuhui | Village | |
| 柏崖 | Baiya | Village | |
| 程各庄 | Chenggezhuang | Village | |
| 庄户峪 | Zhuanghuyu | Village | |
| 张庄子 | Zhangzhuangzi | Village | |
| 杨各庄 | Yanggezhuang | Village | |
| 高庄子 | Gaozhuangzi | Village | |
| 大城子 | Dachengzi | Village | |
| 聂家峪 | Niejiayu | Village | |
| 方耳峪 | Fang'eryu | Village | |
| 后甸 | Houdian | Village | |
| 王各庄 | Wanggezhuang | Village | |
| 河下 | Hexia | Village | |
| 庄头 | Zhuangtou | Village | |
| 大龙门 | Dalongmen | Village | |
| 碰河寺 | Penghesi | Village | |
| 张泉 | Zhangquan | Village |
Beijing-Chengde Expressway, Mixing Road and Beijing–Shenyang high-speed railway are the main roads within the town.