Three Rivers is a city in Live Oak County, Texas, United States. The population was 1,878 at the 2000 census.
Three Rivers is located at 28°28′02″N 98°10′46″W / 28.467155°N 98.179451°W / 28.467155; -98.179451 (28.467155, -98.179451).
According to the United States Census Bureau, the city has a total area of 1.5 square miles (3.9 km), all of it land.
As of the census of 2000, there were 1,878 people, 704 households, and 492 families residing in the city. The population density was 1,299.7 people per square mile (503.5/km). There were 876 housing units at an average density of 606.2/sq mi (234.9/km). The racial makeup of the city was 82.22% White, 0.53% African American, 0.32% Native American, 0.48% Asian, 14.00% from other races, and 2.45% from two or more races. Hispanic or Latino of any race were 50.37% of the population.
There were 704 households out of which 36.9% had children under the age of 18 living with them, 53.1% were married couples living together, 12.5% had a female householder with no husband present, and 30.0% were non-families. 26.4% of all households were made up of individuals and 13.4% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.18.
In the city, the population was spread out with 28.1% under the age of 18, 9.0% from 18 to 24, 27.3% from 25 to 44, 21.1% from 45 to 64, and 14.6% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 90.3 males. For every 100 females age 18 and over, there were 88.4 males.
The median income for a household in the city was $27,188, and the median income for a family was $34,188. Males had a median income of $30,337 versus $16,607 for females. The per capita income for the city was $12,814. About 21.6% of families and 23.3% of the population were below the poverty line, including 28.0% of those under age 18 and 24.8% of those age 65 or over.