Addison is in the heart of the Dallas-Fort Worth Metroplex, just north of Dallas proper. It's a center for business in the metro area, yet it maintains a close-knit neighborly atmosphere. Addison has excellent municipal services, such as a city-wide wireless Internet network, along with outstanding parks and recreation programs, adding to the city's charm. The area is within 20 minutes from downtown Dallas and has easy access to major highways within the city.
As of the census of 2010, there were 13,056 people, 7,378 total households, and 2,663 family households residing in the town. The population density was 3,200.0 people per square mile (1,234.7/km2). There were 8,205 housing units at an average density of 1,853.4 per square mile (715.1/km2). The racial makeup of the town was 67.79% White, 9.63% African American, 0.41% Native American, 7.81% Asian, 0.11% Pacific Islander, 10.79% from other races, and 3.46% from two or more races. Hispanic or Latino of any race were 24.04% of the population. There were 7,378 households, out of which 14.3% had children under the age of 18 living with them, 24.5% were married couples living together, 8.2% had a female householder with no husband present, and 63.9% were non-families. 52.2% of all households were made up of individuals, and 10.2% had someone living alone who was 65 years of age or older. The average household size was 1.77 and the average family size was 2.69.
In the town the population was spread out, with 14.5% under the age of 18, 11.6% from 18 to 24, 43.9% from 25 to 44, 22.6% from 45 to 64, and 7.2% who were 65 years of age or older. The median age was 32.5 years. For every 100 females, there were 99.4 males. For every 100 females age 18 and over, there were 99.1 males.