| San Mateo, New Mexico | |
| Settlement Type: | Census-designated place |
| Pushpin Map: | New Mexico |
| Pushpin Label: | San Mateo |
| Pushpin Label Position: | top |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New Mexico |
| Subdivision Type2: | County |
| Subdivision Name2: | Cibola |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 7.19 |
| Area Total Sq Mi: | 2.78 |
| Area Land Km2: | 7.19 |
| Area Water Km2: | 0.01 |
| Area Land Sq Mi: | 2.77 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 139 |
| Population Density Km2: | 19.35 |
| Population Density Sq Mi: | 50.11 |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation Ft: | 7225 |
| Coordinates: | 35.3381°N -107.645°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 87020[2] |
| Area Code: | 505 |
| Blank Name: | FIPS code |
| Blank Info: | 35-35006 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2584209 |
San Mateo is a census-designated place in Cibola County, New Mexico, United States. The population was 161 at the 2010 census.[3]
The community has a Catholic church, a Baptist church, a Morada, a cemetery, a Volunteer Fire Department(McKinley County funded) and an old abandoned elementary school. It is also coined "the Uranium Capital of the World".
San Mateo is 25miles from Grants. It overlooks Mount Taylor.