Opal is located in South Dakota. Opal, South Dakota has a population of 44.
The median household income in Opal, South Dakota is $29,167. The median household income for the surrounding county is $68,242 compared to the national median of $69,021. The median age of people living in Opal is 20.8 years.
The average high temperature in July is 87 degrees, with an average low temperature in January of 7.9 degrees. The average rainfall is approximately 17.6 inches per year, with 39.3 inches of snow per year.
