Chiapanecas, the dance, is from Mestizos of the central area of Chiapas, centered around San Cristobal de las Casas; one of several local dances from Chiapas.
The area also has a large Mayan minority.
Zapatista liberationists took over the town in 2006; much of Chiapas is very poor.

Only the SW part is well-to-do with high GDP for Mexico, centered on Tapachula, a coffee, palm oil, sugar plantation area with estates owned by Germans, Canadians and others (when I visited Tapachula some years ago, they had an excellent French restaurant).

The dance's origin is poorly known, the dance steps and tune has spread throughout Mexico, and words were added in the 20th c., as noted in a previous post.

'Chiapanecas' has become an adjective; one may speak of the foods of the area as "Delicias Chiapanecas*," and the people as Chiapanecans.

* http://www.geomundos.com/viajes/visita-CHIAPAS/delicias-chiapanecas_doc_17907.html