El Valle de Arroyo Seco is a census-designated place (CDP) in Santa Fe County, New Mexico, United States.

It is part of the Santa Fe, New Mexico Metropolitan Statistical Area.

[4] According to the United States Census Bureau, the CDP has a total area of 5.2 square miles (13 km2), all land.

There were 438 housing units at an average density of 84.4 per square mile (32.6/km2).

18.7% of all households were made up of individuals, and 3.7% had someone living alone who was 65 years of age or older.