Indian Lake is a town in Cameron County, Texas, United States. The population was 640 at the 2010 census. It may be included as part of the Brownsville–Harlingen–Raymondville and the Matamoros–Brownsville metropolitan areas.
Indian Lake is located at 26°5′16″N 97°30′9″W / 26.08778°N 97.50250°W / 26.08778; -97.50250 (26.087651, -97.502470).
According to the United States Census Bureau, the town has a total area of 0.3 square miles (0.78 km), of which, 0.2 square miles (0.52 km) of it is land and 0.1 square miles (0.26 km) of it (19.23%) is water.
As of the census of 2000, there were 541 people, 229 households, and 158 families residing in the town. The population density was 2,602.6 people per square mile (994.7/km²). There were 345 housing units at an average density of 1,659.7 per square mile (634.3/km²). The racial makeup of the town was 82.81% White, 0.92% Native American, 0.37% Asian, 0.37% Pacific Islander, 13.49% from other races, and 2.03% from two or more races. Hispanic or Latino of any race were 43.07% of the population.
There were 229 households out of which 24.9% had children under the age of 18 living with them, 58.5% were married couples living together, 7.9% had a female householder with no husband present, and 31.0% were non-families. 25.8% of all households were made up of individuals and 16.6% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 2.82.
In the town, the population was spread out with 22.0% under the age of 18, 4.4% from 18 to 24, 22.4% from 25 to 44, 19.8% from 45 to 64, and 31.4% who were 65 years of age or older. The median age was 46 years. For every 100 females, there were 94.6 males. For every 100 females age 18 and over, there were 91.0 males.
The median income for a household in the town was $23,269, and the median income for a family was $26,563. Males had a median income of $21,250 versus $12,279 for females. The per capita income for the town was $12,129. About 13.8% of families and 14.3% of the population were below the poverty line, including 16.3% of those under age 18 and 5.1% of those age 65 or over.