Hernandez is an unincorporated community in Rio Arriba County, New Mexico, United States. Hernandez is about 5 miles northwest of Española on highway US 84 / US 285.Within the unincorporated community is the built-up census-designated place of Hernandez, with an area of 1.7 square miles. The Hernandez CDP had a population of 946 in the 2010 census,The entire Hernandez area 55 square miles has the ZIP code 87537, pointing to ZIP Code Tabulation Area 87537, with a population of 2,957 in the 2010 U.S. census. The racial makeup of the Hernandez ZCTA was 58.4% White, 0.4% African American, 2.6% Native American, 0.4% Asian, 35.3% from other races, and 2.9% from two or more races. Hispanic or Latino of any race were 88.9% of the population.Hernandez is best known as the subject of a 1941 Ansel Adams photograph, Moonrise, Hernandez, New Mexico.