Distribution of Native Americans

[Poissone]

The 2017 one for Peru is definitely not racial, i haven't read the 1940 census yet though.

Altough not the majority, there are still a sizable chunk/minority of people with a totally indigenous american phenotype in the northern coast, at least in some parts of it. I'd say the only Peruvian region with a kinda low proportion of people with a totally indigenous phenotype is Tumbes because it's a small region and people there are more homogeneous and mostly in the indomestizo-mestizo range.

I don't think so, at least from what I've seen. La Libertad and Cajamarca are probably the regions where seeing "pure indigenous" phenotypes is very rare. Not to mention that these are the most European regions in the north, along with Amazonas.

[Peterski]

Chiapas is the most amerindian state in Mexico. And it has the highest % Amerindian population in Mexico.

It has a lot of Amerindians in the highland part of the state, but lowlands are more Mestizo-dominated:

[RMuller]

It has a lot of Amerindians in the highland part of the state, but lowlands are more Mestizo-dominated:

The state borders Guatemala. That says it all. Chiapas is the most amerindian and has highest% of amerindian pop in Mexico.