Robert Hanssen was a resident of Vienna, Virginia when he was arrested by the FBI.
Geography\nVienna is located at 38°53'57" North, 77°15'38" West (38.899161, -77.260672)1.
According to the United States Census Bureau, the town has a total area of 11.5 km² (4.4 mi²). 11.5 km² (4.4 mi²) of it is land and none of the area is covered with water.
Demographics\nAs of the census of 2000, there are 14,453 people, 5,331 households, and 3,982 families residing in the town. The population density is 1,256.8/km² (3,253.8/mi²). There are 5,438 housing units at an average density of 472.9/km² (1,224.3/mi²). The racial makeup of the town is 81.10% White, 3.44% African American, 0.19% Native American, 9.47% Asian, 0.00% Pacific Islander, 2.71% from other races, and 3.09% from two or more races. 7.39% of the population are Hispanic or Latino of any race.
There are 5,331 households out of which 33.1% have children under the age of 18 living with them, 64.2% are married couples living together, 7.4% have a female householder with no husband present, and 25.3% are non-families. 19.3% of all households are made up of individuals and 8.2% have someone living alone who is 65 years of age or older. The average household size is 2.71 and the average family size is 3.08.
In the town the population is spread out with 23.6% under the age of 18, 5.0% from 18 to 24, 30.5% from 25 to 44, 27.2% from 45 to 64, and 13.6% who are 65 years of age or older. The median age is 40 years. For every 100 females there are 99.4 males. For every 100 females age 18 and over, there are 97.9 males.
The median income for a household in the town is $85,519, and the median income for a family is $93,043. Males have a median income of $62,733 versus $39,563 for females. The per capita income for the town is $37,753. 2.5% of the population and 1.3% of families are below the poverty line. Out of the total people living in poverty, 3.6% are under the age of 18 and 1.9% are 65 or older.