|City/Townships||Coatesville, Valley Township, West Brandywine Township|
|Elevation||367 ft (112 m)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|Area code(s)||610 and 484|
|GNIS feature ID||1187725|
Siousca is an unincorporated community in Chester County, Pennsylvania, United States. Siousca is located at the intersection of Pennsylvania Route 82 and Pennsylvania Route 340 at the tripoint of the city of Coatesville and Valley and West Brandywine townships.