After the division of Cieszyn Silesia in 1920, the village became part of Czechoslovakia as Smilovice. In October 1938, the village and the whole Zaolzie region was annexed by Poland. The village was then annexed by Nazi Germany at the beginning of World War II. After the war it was restored to Czechoslovakia.
The Christian festival XcamP takes place in Smilovice annually in July.
* More than 10% of total population; 2001 census data. **Karviná fell under 10% in the 2001 census.
Villages with significant Polish population under the administration of another municipality are not listed.