There are 6 zip codes in Costilla County, Colorado. The most populated is 81151, located in Sanford. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
811511,708Sanford
811521,187San Luis
811331,109Fort Garland
81123729Blanca
81126371Chama
8113839Jaroso

Zip Codes in Costilla County, Colorado by Population (2024)