For most sites, an IP address here identifies as Mexico first and Santa Fé Instituto del Fondo Nacional de la Vivienda para los Trabajadores second. Checks that stop at the country, and that is prices, catalogs, language and most geo-blocks, behave the same whether your exit sits in Santa Fé Instituto del Fondo Nacional de la Vivienda para los Trabajadores or in Unidad del Seguro Social en Santa Fe.
City targeting starts to matter when the question is genuinely local: store stock and pickup, delivery estimates, local search results, regional pricing, or anything a map decides for you. If that is your task, ask for Santa Fé Instituto del Fondo Nacional de la Vivienda para los Trabajadores specifically. If it is not, the country exit is cheaper and far more stable.
City-level residential supply moves week to week everywhere, ours included. If nothing is live in Santa Fé Instituto del Fondo Nacional de la Vivienda para los Trabajadores the moment you ask, the reliable fallback is a Mexico exit, and the free Mexico list shows the public pool measured live.