Old River-Winfree is a city in Chambers and Liberty counties, Texas, United States. The population was 1,245 at the 2010 census.
Old River-Winfree is located in northwestern Chambers County at 29°52′38″N 94°49′18″W / 29.87722°N 94.82167°W / 29.87722; -94.82167 (29.877309, -94.821571). A small portion extends north into Liberty County.
According to the United States Census Bureau, the city has a total area of 1.6 square miles (4.1 km), all land.
As of the census of 2000, there were 1,364 people, 475 households, and 397 families residing in the city. The population density was 1,086.5 people per square mile (418.0/km²). There were 527 housing units at an average density of 419.8 per square mile (161.5/km²). The racial makeup of the city was 92.60% White, 4.25% African American, 0.37% Native American, 0.07% Asian, 1.32% from other races, and 1.39% from two or more races. Hispanic or Latino of any race were 5.28% of the population.
There were 475 households out of which 42.5% had children under the age of 18 living with them, 69.1% were married couples living together, 8.8% had a female householder with no husband present, and 16.4% were non-families. 14.3% of all households were made up of individuals and 4.0% had someone living alone who was 65 years of age or older. The average household size was 2.87 and the average family size was 3.12.
In the city, the population was spread out with 29.2% under the age of 18, 8.1% from 18 to 24, 30.4% from 25 to 44, 26.4% from 45 to 64, and 6.0% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 99.4 males. For every 100 females age 18 and over, there were 100.8 males.
The median income for a household in the city was $48,523, and the median income for a family was $52,857. Males had a median income of $43,182 versus $25,313 for females. The per capita income for the city was $19,114. About 4.9% of families and 6.9% of the population were below the poverty line, including 5.3% of those under age 18 and 11.5% of those age 65 or over.