Dulce (/ˈdʌlsiː/ or /ˈduːsiː/; Jicarilla Apache: Lóosi)[4] is a census-designated place (CDP) in Rio Arriba County, New Mexico, United States.

It is the largest community and tribal headquarters of the Jicarilla Apache Reservation.

[citation needed] The Denver & Rio Grande Railroad constructed its San Juan Extension through Dulce in 1882,[6] and a post office was established in 1892.

[7] A sawmill was established here, and a logging railroad running southwest as far as Mills Lake from about 1914, both of which closed around 1930.

[10] Dulce is the southernmost urban area with a subarctic humid continental climate in North America (Köppen: Dfc) where summer is mild and short due to high altitude and rigorous winter.

Going further south than the Dfb in low altitude and in latitude similar to the southern limit of the Dfa in the center of the country.

[15] The Bureau of Indian Education (BIE) maintained the Jicarilla Dormitory, which took students in grades 1-12.