The polka is a dance and also a genre of dance music, which originated in the middle of the 19th century in the area now southern Poland and the Czech Republic. The word ‘polka’ itself meaning “Polish woman”.
In Poland, Polka is not now a much listened to genre of music or dance danced but both are popular in many parts of the USA. Indeed, anywhere there are large groups of immigrants, with roots in Central Europe. Chicago being a good example.
Here’s an example of American Polish-style Polka music and dancing.