Johnston is located in Rhode Island. Johnston, Rhode Island has a population of 30,566. Johnston is less family-centric than the surrounding county with 24% households with children. The county percentage for households with children is 27%.
The median household income in Johnston, Rhode Island is $69,367. The median household income for the surrounding county is $62,315 compared to the national median of $66,222. The median age of people living in Johnston is 46 years.
The average high temperature in July is 82.6 degrees, with an average low temperature in January of 20.3 degrees. The annual precipitation is 46.45.