Rio Arriba County, New Mexico

Rio Arriba County is a county in New Mexico with an estimated population of 39,876 in 2023. 2 cities, towns and Census places in it are indexed here.

Largest places in Rio Arriba County

About Rio Arriba County

Rio Arriba County is one of the counties of New Mexico. County governments in New Mexico handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.