Vail is served by Eagle County Airport, which is in Eagle County.
As of the census of 2000, there are 4,531 people, 2,165 households, and 762 families residing in the town. The population density is 385.3/km² (999.0/mi²). There are 5,389 housing units at an average density of 458.3/km² (1,188.1/mi²). The racial makeup of the town is 94.13% White, 0.29% African American, 0.49% Native American, 1.66% Asian, 0.09% Pacific Islander, 1.43% from other races, and 1.92% from two or more races. 6.20% of the population are Hispanic or Latino of any race.
There are 2,165 households out of which 11.8% have children under the age of 18 living with them, 30.0% are married couples living together, 3.0% have a female householder with no husband present, and 64.8% are non-families. 33.2% of all households are made up of individuals and 2.7% have someone living alone who is 65 years of age or older. The average household size is 2.09 and the average family size is 2.62.
In the town the population is spread out with 9.9% under the age of 18, 14.8% from 18 to 24, 47.9% from 25 to 44, 22.6% from 45 to 64, and 4.7% who are 65 years of age or older. The median age is 32 years. For every 100 females there are 140.1 males. For every 100 females age 18 and over, there are 143.0 males.
The median income for a household in the town is $56,680, and the median income for a family is $66,389. Males have a median income of $33,534 versus $32,065 for females. The per capita income for the town is $42,390. 6.6% of the population and 1.8% of families are below the poverty line. Out of the total people living in poverty, 0.9% are under the age of 18 and 7.2% are 65 or older.
The Vail valley is currently in the midst of something of a population boom. It is predicted that by 2020, the valley, including Vail and its environs will be home to 80,000 people. This is primarily because Vail, being a ski resort, makes most of its money off of real estate, thus ensuring that the people who buy houses in the Valley will patronize the resort for years to come, even if they only use their vacation homes once a year.