According to the United States Census Bureau, the place has a total area of 2.8 km² (1.1 mi²). 2.8 km² (1.1 mi²) of it is land and none of it is covered by water.
There are 4,857 households out of which 3.5% have children under the age of 18 living with them, 32.4% are married couples living together, 3.8% have a female householder with no husband present, and 63.1% are non-families. 61.2% of all households are made up of individuals and 56.8% have someone living alone who is 65 years of age or older. The average household size is 1.53 and the average family size is 2.33.
In the area the population is spread out with 5.2% under the age of 18, 1.8% from 18 to 24, 6.8% from 25 to 44, 9.7% from 45 to 64, and 76.5% who are 65 years of age or older. The median age is 77 years. For every 100 females there are 52.5 males. For every 100 females age 18 and over, there are 50.9 males.
The median income for a household in the area is $45,945, and the median income for a family is $63,773. Males have a median income of $54,408 versus $36,038 for females. The per capita income for the area is $37,761. 4.1% of the population and 1.0% of families are below the poverty line. Out of the total people living in poverty, 0.0% are under the age of 18 and 4.1% are 65 or older.