Rock Island is located in Texas. Rock Island, Texas has a population of 447. Rock Island is more family-centric than the surrounding county with 44.37% of the households containing married families with children. The county average for households married with children is 24.11%.
The median household income in Rock Island, Texas is $43,922. The median household income for the surrounding county is $55,945 compared to the national median of $69,021. The median age of people living in Rock Island is 39.5 years.
The average high temperature in July is 94 degrees, with an average low temperature in January of 41.2 degrees. The average rainfall is approximately 43.1 inches per year, with 0 inches of snow per year.
