Gardnerville is an unincorporated town in Douglas County, Nevada, United States, adjacent to the county seat of Minden. The population was 5,656 at the 2010 census.
U.S. Route 395 runs through the center of Gardnerville. State Route 207, known as Kingsbury Grade, connects Gardnerville to Stateline and U.S. Route 50.
The community was named after John Gardner, a local cattleman.
According to the United States Census Bureau, the census-designated place (CDP) of Gardnerville has a total area of 4.8 square miles (12 km2), all of it land.
Area has a Köppen Climate Classification of Csb, which is a dry-summer subtropical climate often referred to as "Mediterranean".
As of the census of 2000, there were 3,357 people, 1,473 households, and 870 families residing in the CDP. The population density was 699.9 people per square mile (270.0/km2). There were 1,556 housing units at an average density of 324.4 per square mile (125.2/km2). The racial makeup of the CDP was 89.93% White, 0.45% African American, 1.07% Native American, 1.28% Asian, 0.09% Pacific Islander, 5.30% from other races, and 1.88% from two or more races. Hispanic or Latino of any race were 11.83% of the population.
There were 1,473 households, out of which 28.6% had children under the age of 18 living with them, 43.2% were married couples living together, 11.5% had a female householder with no husband present, and 40.9% were non-families.