Rappahannock County is a county located in the U.S. state — officially, "Commonwealth" — of Virginia. As of the 2000 census, the population was 6,983. Its county seat is Washington. The name "Rappahannock" comes from the Algonquian word lappihanne (also noted as toppehannock), meaning "river of quick, rising water" or "where the tide ebbs and flows."
According to the U.S. Census Bureau, the county has a total area of 267 square miles (691 km²), of which, 267 square miles (690 km²) of it is land and 0 square miles (1 km²) of it (0.10%) is water.
There were 2,788 households out of which 27.40% had children under the age of 18 living with them, 60.50% were married couples living together, 7.10% had a female householder with no husband present, and 28.10% were non-families. 23.40% of all households were made up of individuals and 7.90% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 2.94.
In the county, the population was spread out with 22.30% under the age of 18, 5.60% from 18 to 24, 26.40% from 25 to 44, 31.80% from 45 to 64, and 13.80% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 98.80 males. For every 100 females age 18 and over, there were 97.30 males.
The median income for a household in the county was $45,943, and the median income for a family was $51,848. Males had a median income of $32,725 versus $22,950 for females. The per capita income for the county was $23,863. About 5.20% of families and 7.60% of the population were below the poverty line, including 10.80% of those under age 18 and 3.20% of those age 65 or over.