The downtown area of Stamford has a cluster of modern commercial buildings, some of which are corporate headquarters. They're located mostly alongside the Connecticut Turnpike (I-95), which runs along the southern areas of the city.
Stamford is served by the Stamford Rail Station.
According to the United States Census Bureau, the city has a total area of 134.9 km² (52.1 mi²). 97.8 km² (37.8 mi²) of it is land and 37.1 km² (14.3 mi²) of it is water. The total area is 27.52% water.
As of the census of 2000, there are 117,083 people, 45,399 households, and 28,964 families residing in the city. The population density is 1,197.5/km² (3,101.9/mi²). There are 47,317 housing units at an average density of 484.0 persons/km² (1,253.6 persons/mi²). The racial makeup of the city is 69.79% White, 15.39% African American, 0.21% Native American, 5.00% Asian, 0.04% Pacific Islander, 6.50% from other races, and 3.07% from two or more races. 16.77% of the population are Hispanic or Latino of any race.
There are 45,399 households out of which 28.7% have children under the age of 18 living with them, 48.5% are married couples living together, 11.5% have a woman whose husband does not live with her, and 36.2% are non-families. 28.7% of all households are made up of individuals and 9.8% have someone living alone who is 65 years of age or older. The average household size is 2.54 and the average family size is 3.13.
In the city the population is spread out with 22.1% under the age of 18, 7.4% from 18 to 24, 35.0% from 25 to 44, 21.7% from 45 to 64, and 13.8% who are 65 years of age or older. The median age is 36 years. For every 100 females there are 93.7 males. For every 100 females age 18 and over, there are 90.9 males.
The median income for a household in the city is $60,556, and the median income for a family is $69,337. Males have a median income of $48,386 versus $36,958 for females. The per capita income for the city is $34,987. 7.9% of the population and 5.4% of families are below the poverty line. Out of the total people living in poverty, 8.7% are under the age of 18 and 9.7% are 65 or older.