Costilla is located in New Mexico. Costilla, New Mexico has a population of 388. Costilla is more family-centric than the surrounding county with 100% of the households containing married families with children. The county average for households married with children is 14.47%.
The median household income for the surrounding county is $49,481 compared to the national median of $69,021. The median age of people living in Costilla is 35.2 years.
The average high temperature in July is 78 degrees, with an average low temperature in January of 6.8 degrees. The average rainfall is approximately 19.1 inches per year, with 124.5 inches of snow per year.