2020 census As of the
2020 census, Vienna had a population of 10,652. The median age was 44.9 years. 19.1% of residents were under the age of 18 and 23.3% of residents were 65 years of age or older. For every 100 females there were 91.7 males, and for every 100 females age 18 and over there were 90.0 males age 18 and over. There were 4,798 households in Vienna, of which 24.8% had children under the age of 18 living in them. Of all households, 45.1% were married-couple households, 18.2% were households with a male householder and no spouse or partner present, and 29.9% were households with a female householder and no spouse or partner present. About 33.5% of all households were made up of individuals and 15.7% had someone living alone who was 65 years of age or older. Of the 4,707 households 26.5% had children under the age of 18 living with them, 50.5% were married couples living together, 10.4% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 35.1% were non-families. 30.4% of households were one person and 13.4% were one person aged 65 or older. The average household size was 2.24 and the average family size was 2.77. The median age was 43.8 years. 20.2% of residents were under the age of 18; 8.1% were between the ages of 18 and 24; 23% were from 25 to 44; 29.1% were from 45 to 64; and 19.6% were 65 or older. The gender makeup of the city was 47.0% male and 53.0% female.
2000 census At the
2000 census there were 10,861 people, 4,733 households, and 3,152 families living in the city. The population density was 2,895.8 people per square mile (1,118.3/km). There were 5,074 housing units at an average density of 1,352.8 per square mile (522.4/km). The
racial makeup of the city was 96.70% White, 0.95% African American, 0.17% Native American, 1.34% Asian, 0.02% Pacific Islander, 0.14% from other races, and 0.68% from two or more races. Hispanic or Latino of any race were 0.50%. Of the 4,733 households 26.5% had children under the age of 18 living with them, 55.3% were married couples living together, 9.1% had a female householder with no husband present, and 33.4% were non-families. 30.3% of households were one person and 14.8% were one person aged 65 or older. The average household size was 2.29 and the average family size was 2.84. The age distribution was 21.2% under the age of 18, 7.0% from 18 to 24, 25.3% from 25 to 44, 27.4% from 45 to 64, and 19.1% 65 or older. The median age was 43 years. For every 100 females, there were 87.9 males. For every 100 females age 18 and over, there were 83.5 males. The median household income was $39,220 and the median family income was $49,477. Males had a median income of $41,779 versus $25,122 for females. The per capita income for the city was $24,452. About 5.3% of families and 7.7% of the population were below the
poverty line, including 10.2% of those under age 18 and 7.6% of those age 65 or over. ==Pollution==