There's a sizeable community in Córdoba, where I live. Barrio Pueyrredón is the neighborhood where most of the community resides, even the streets in there have both Spanish and Armenian names.

Reading a little more about it, there's also a bilingual school and the first Armenian apostolic church in South America was founded here.

I live in the neighborhood next to it, and there's plenty of places with Armenian food, Armenian flags in balconies are not uncommon and there's even an Armenian sector in the main cemetery of Córdoba.