Males had a median income of ,659 versus ,728 for females. About 7.00% of families and 9.50% of the population were below the poverty line, including 11.20% of those under age 18 and 10.00% of those age 65 or over.
At the presidential level, Gasconade County is one of the most reliably Republican strongholds in the state of Missouri.
The population density was 30 people per square mile (11/km²).
There were 7,813 housing units at an average density of 15 per square mile (6/km²).
In 2006, Missourians voted on a constitutional amendment to fund and legalize embryonic stem cell research in the state—it failed in Gasconade County with 58.61 percent voting against the measure.
The initiative narrowly passed the state with 51 percent of support from voters as Missouri became one of the first states in the nation to approve embryonic stem cell research.
One man who managed to stir some doubt was Niels Stensen (or Nicolaus Steno).There were 6,171 households out of which 31.00% had children under the age of 18 living with them, 58.00% were married couples living together, 7.60% had a female householder with no husband present, and 30.50% were non-families.27.00% of all households were made up of individuals and 14.60% had someone living alone who was 65 years of age or older.The racial makeup of the county was 98.69% White, 0.12% Black or African American, 0.18% Native American, 0.16% Asian, 0.01% Pacific Islander, 0.14% from other races, and 0.70% from two or more races.Approximately 0.42% of the population were Hispanic or Latino of any race.