|• Total||0.05 sq mi (0.12 km2)|
|• Land||0.05 sq mi (0.12 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||39 ft (12 m)|
|• Density||4,320/sq mi (1,667.8/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||1852718|
As of the census of 2000, there were 246 people, 56 households, and 53 families residing in the CDP. The population density was 5,718.7 people per square mile (2,374.5/km²). There were 57 housing units at an average density of 1,325.1/sq mi (550.2/km²). The racial makeup of the CDP was 8.54% White, 91.46% from other races. Hispanic or Latino of any race were 99.59% of the population.
There were 56 households out of which 50.0% had children under the age of 18 living with them, 78.6% were married couples living together, 14.3% had a female householder with no husband present, and 3.6% were non-families. 3.6% of all households were made up of individuals and 3.6% had someone living alone who was 65 years of age or older. The average household size was 4.39 and the average family size was 4.44.
In the CDP, the population was spread out with 37.0% under the age of 18, 9.8% from 18 to 24, 26.0% from 25 to 44, 19.1% from 45 to 64, and 8.1% who were 65 years of age or older. The median age was 26 years. For every 100 females there were 90.7 males. For every 100 females age 18 and over, there were 82.4 males.
The median income for a household in the CDP was $18,235, and the median income for a family was $18,235. Males had a median income of $30,568 versus $6,250 for females. The per capita income for the CDP was $3,346. About 54.3% of families and 70.1% of the population were below the poverty line, including 83.5% of those under the age of 18 and none of those 65 or over.
Lago is served by the San Benito Consolidated Independent School District.
In addition, South Texas Independent School District operates magnet schools that serve the community.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "Geographic Identifiers: 2010 Census Summary File 1 (G001): Lagos CDP, Texas". U.S. Census Bureau, American Factfinder. Retrieved July 21, 2015.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.