Tres Arroyos is an unincorporated community and census-designated place in Santa Fe County, New Mexico, United States. It was first listed as a CDP prior to the 2020 census. The CDP is in northern Santa Fe County and is bordered to the southeast by the city of Santa Fe, the state capital, to the northeast by Tano Road, and to the north by Las Campanas. New Mexico State Road 599 forms the southeast border of the CDP; across it to the southeast is the CDP of Agua Fria.