| Official Name: | El Castillo, Texas |
| Settlement Type: | Unincorporated community Census-designated place |
| Mapsize: | 240px |
| Mapsize1: | 240px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Texas |
| Subdivision Type2: | County |
| Area Total Km2: | 0.07 |
| Area Land Km2: | 0.07 |
| Area Water Km2: | 0.0 |
| Population As Of: | 2010 |
| Population Total: | 188 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) UTC-6 |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 0.07 |
| Coordinates: | 26.335°N -98.6386°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 78582 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2584627 |
El Castillo (in Spanish: Castle) is a census-designated place located in Starr County, Texas, United States. It is a new CDP, formed from part of the old La Victoria CDP for the 2010 census, with a population of 188.[1]
El Castillo is located at 26.335°N -98.6386°W (26.334926, -98.638659).[2] According to the United States Census Bureau, El Castillo has a total area of 0.07 km2, all land.[3]
El Castillo along with 5 other census designated places (Alto Bonito Heights, El Socio, Eugenio Saenz, Olmito and Olmito, and Valle Vista) was formed prior to the 2010 U.S. Census from parts of La Victoria CDP.
| White alone (NH) | 0 | style='background: #ffffe6; | 1 | 0.00% | style='background: #ffffe6; | 0.46% | |
| Black or African American alone (NH) | 0 | style='background: #ffffe6; | 0 | 0.00% | style='background: #ffffe6; | 0.00% | |
| Native American or Alaska Native alone (NH) | 0 | style='background: #ffffe6; | 0 | 0.00% | style='background: #ffffe6; | 0.00% | |
| Asian alone (NH) | 0 | style='background: #ffffe6; | 0 | 0.00% | style='background: #ffffe6; | 0.00% | |
| Pacific Islander alone (NH) | 0 | style='background: #ffffe6; | 0 | 0.00% | style='background: #ffffe6; | 0.00% | |
| Some Other Race alone (NH) | 0 | style='background: #ffffe6; | 0 | 0.00% | style='background: #ffffe6; | 0.00% | |
| Mixed Race or Multi-Racial (NH) | 0 | style='background: #ffffe6; | 0 | 0.00% | style='background: #ffffe6; | 0.00% | |
| Hispanic or Latino (any race) | 188 | style='background: #ffffe6; | 218 | 100.00% | style='background: #ffffe6; | 99.54% | |
| Total | 188 | style='background: #ffffe6; | 219 | 100.00% | style='background: #ffffe6; | 100.00% |
According to the 2010 US Census, there were 188 people residing in El Castillo.[6] The density was 2,686 inhabitants/km2. Populated for 188 inhabitants, El Castillo was composed of the 76.06% white, the 22.87% of other races and the 1.06% belonged to two or more races. Of the total population, 100% were Hispanic and Latino of any race.[7]
The CDP is within the Rio Grande City Grulla Independent School District (formerly Rio Grande City Consolidated Independent School District)[8]