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Allen, Texas
City of Allen
Flag of Allen, Texas
Location of Allen in Collin County, Texas
Location of Allen in Collin County, Texas
Country  United States of America
State  Texas
County Flag of Collin County, Texas.svg Collin
Incorporated 1953
 • Type Council-Manager
 • Total 27.1 sq mi (70.2 km2)
659 ft (201 m)
 • Total 84,246
 • Estimate 
 • Density 3,108/sq mi (1,200.1/km2)
 • White 64.92%
 • Asian 12.79%
 • Hispanic 11.21%
 • Black 8.18%
Time zone UTC-6 (CST)
 • Summer (DST) UTC-5 (CDT)
ZIP codes
75002, 75013
Area code(s) 972, 469, 214
FIPS code 48-01924
GNIS feature ID 1329377
Website City Of Allen Official Website

Allen is an affluent city in Collin County, Texas, a northern suburb of Dallas. As of the 2010 United States Census, the city had a total population of 84,246.


Allen, Texas Train Water Station
Allen Water Station was built for the railroad in 1874.

The Allen area was previously home to the Caddo, Comanche, and other indigenous peoples. The first immigrants from the United States and Europe arrived in the early 1840s. On February 22, 1878, a gang led by Sam Bass committed in Allen what is said to be Texas's first train robbery.

From 1908 through 1948, Allen was a stop along the Texas Traction Company's interurban line from Denison to Dallas. Allen was a small town of a few hundred residents when it was incorporated in 1953. Since this time, it has grown dramatically due to the construction of U.S. Route 75, the Dallas/Fort Worth International Airport, and the development of nearby Dallas and Plano.


According to the City of Allen, the city has a total area of 27.1 square miles (70 km2). None of the area is covered with water except the small ponds scattered throughout the city.


Allen is part of the Humid Subtropical region, with hot dry summers and mild cold and rainy winters.


Historical population
Census Pop.
1880 96
1960 659
1970 1,940 194.4%
1980 8,314 328.6%
1990 18,309 120.2%
2000 43,554 137.9%
2010 84,246 93.4%
Est. 2015 98,143 16.5%
U.S. Decennial Census

As of the 2010 Census, the city had a population of 84,246 people. The racial makeup of the city was 64.9% White, 8.4% African American, 0.5% Native American, 13.9% Asian, 0.1% Pacific Islander, 2.9% from other races, and 1.7% from two or more races. Hispanic or Latino of any race were 16.2% of the population.

There were 14,205 households out of which 55.5% had children under the age of 18 living with them, 74.6% were married couples living together, 7.4% had a female householder with no husband present, and 15.2% were non-families. 11.9% of all households were made up of individuals and 1.6% had someone living alone who was 65 years of age or older. The average household size was 3.07 and the average family size was 3.35.

In the city, the population was spread out with 34.9% under the age of 18, 5.4% from 18 to 24, 40.7% from 25 to 44, 16.2% from 45 to 64, and 2.8% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 99.7 males. For every 100 females age 18 and over, there were 97.3 males.

The median income for a household in the city in 2007 was $93,392, and the median income for a family was $100,736.

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