Regions in the Americas with the most colonial Criollo population

[IberoTarasco]

There many regions in Latin America that have large European populations such as the Southern Cone (especially Argentina, Uruguay, & South Brazil), but in most case they are of fully or partial recent European immigrant ancestry.

So I'll list the regions that currently have a significant colonial Criollo population.

1. Saint Bernard Parish in Louisiana: There's a significant population descended from Canary Islanders who arrived in Louisiana in the late 18th century, when it was under Spanish rule, today they are still predominantly Spanish, but have smaller amounts of other White ancestries such as Cajun French, many left the region after Hurricane Katrina, & moved to New Orleans, but many returned to the Saint Bernard Parish, they speak Isleno Spanish, a dialect of Canarian Spanish, & still self-identify as Canarian & Spanish, & are the purest Spanish population in the American continent.
2. Los Altos de Jalisco: There's a significant Criollo population there, mainly descended from Criollo settlers from other parts of Mexico such as Michoacan, Guadalajara, Zacatecas, & Mexico City, their Spanish ancestry is a mix of Andalusian, Basque, Galician, Extremaduran, Asturian, Cantrabian, & Castilian, they also have smaller amounts of Portuguese, Sephardic Jewish, Italian, Belgian Flemish, & Native American (usually around 1/8 or 1/16), their ancestors mainly arrived there in the 17th & 18th centuries.
3. The Paisa Region in Colombia: There's also a significant colonial Criollo population there, their Spanish ancestry includes Extremaduran, Andalusian, Basque, & Canarian, they also have Sephardic Jewish ancestry, as well as a small amount of Native American ancestry, their ancestors arrived in the Paisa region in the 16th, 17th, & 18th centuries.
4. Puerto Rico: Criollos make up 25% of the population in the island, the vast majority of them are of 100% colonial roots, as Puerto Rico was a Spanish colony until 1898, their origins are mostly Spanish (Canarian, Andalusian, Basque, Asturian, Catalan, Castilian, & Galician), as well as Coriscan Italian, massive Spanish immigration to Puerto Rico stopped after the Spanish-American War.

Other Spanish colonies such as Santo Domingo (present-day Dominican Republic) & Peru had large colonial Criollo populations, in the Dominican Republic, much of the Criollo population left after the Haitian invasion, & many also mixed with Mulattoes, in Peru, it was mostly concentrated in Lima, but they mixed with recent European immigrants or Mestizos or they moved to other parts of Latin America such as Mexico.

Cuba received many Spanish immigrants in the 1800s, when it was still a Spanish colony, but they mostly left for Miami after Castro took over.