Dacheng County should not be confused with Dacheng, Changhua.
| Dacheng County | |
| Other Name: | Tacheng |
| Postal Code Type: | Postal code |
| Settlement Type: | County |
| Image Map1: | File:Location of Langfang Prefecture within Hebei (China).png |
| Map Caption1: | Langfang in Hebei |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hebei |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Langfang |
| Population Density Km2: | auto |
| Coordinates: | 38.7054°N 116.6538°W |
| Timezone: | China Standard |
| Utc Offset: | +8 |
Dacheng County is a county in the central part of Hebei province, China, bordering Tianjin to the northeast. It is the southernmost county-level division of the prefecture-level city of Langfang.
[1] Towns:
Townships: