Eldorado at Santa Fe, locally known as Eldorado, 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. The population was 6,130 at the 2010 census.

Santa Fe County is located in the U.S. state of New Mexico. As of the 2020 census, the population was 154,823, making it New Mexico's third-most populous county, after Bernalillo County and Doña Ana County. Its county seat is Santa Fe, the state capital.