Rock Island is located in Texas. Rock Island, Texas has a population of 399. Rock Island is more family-centric than the surrounding county with 33.33% of the households containing married families with children. The county average for households married with children is 25.16%.
The median household income for the surrounding county is $50,241 compared to the national median of $57,652. The median age of people living in Rock Island is 30.4 years.
The average high temperature in July is 94.3 degrees, with an average low temperature in January of 40.8 degrees. The average rainfall is approximately 43.6 inches per year, with 0.1 inches of snow per year.
