| Official Name: | Costilla, New Mexico |
| Settlement Type: | Census-designated place |
| Pushpin Map: | New Mexico |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New Mexico |
| Subdivision Type2: | County |
| Subdivision Name2: | Taos |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 7.84 |
| Area Land Km2: | 7.84 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 3.03 |
| Area Land Sq Mi: | 3.03 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 177 |
| Population Density Km2: | 22.59 |
| Population Density Sq Mi: | 58.49 |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation Ft: | 7805 |
| Coordinates: | 36.9786°N -105.5353°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 87524 |
| Area Code: | 575 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 2629108 |
Costilla is a census-designated place in Taos County, New Mexico, United States. Its population was 205 as of the 2010 census.[2] Costilla has a post office with ZIP code 87524.[3] [4] State roads 196 and 522 intersect in the community.
The village of Costilla was originally known as San Miguel, named after its church. On November 1, 1861, the Territory of Colorado created 17 original counties, with San Miguel as the original seat of Costilla County, Colorado Territory. When its post office opened on November 13, 1862, the village selected the new name Costilla, perhaps in recognition of its new status.[5] In 1863, county voters decided to move the county seat 17miles north to San Luis. In 1869, a U.S. government survey determined that Costilla was actually located in the Taos County, New Mexico Territory.[6] It wasn't until October 21, 1872, that the village post office was officially renamed Costilla, New Mexico Territory.[5]
According to the U.S. Census Bureau, the community has an area of, all land.[7]
It is in the Questa Independent Schools school district.[8]