There were 558 households out of which 32.6% had children under the age of 18 living with them, 45.5% were married couples living together, 15.8% had a female householder with no husband present, and 34.6% were non-families. 30.6% of all households were made up of individuals and 15.6% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 3.07.
In the city the population was spread out with 27.2% under the age of 18, 9.3% from 18 to 24, 25.9% from 25 to 44, 21.7% from 45 to 64, and 15.8% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 84.6 males. For every 100 females age 18 and over, there were 80.3 males.
The median income for a household in the city was $28,472, and the median income for a family was $36,635. Males had a median income of $34,688 versus $21,190 for females. The per capita income for the city was $16,122. About 8.3% of families and 12.4% of the population were below the poverty line, including 14.9% of those under age 18 and 11.7% of those age 65 or over.
Quinlan has seen tremendous growth in the past 2 years. Expansion of State Highway 276 and the building of a Wal-Mart Supercenter have ignited a building boom. Several new businesses have been built, including: Wal-Mart Supercenter, AutoZone, McDonald's, O'Reilly Auto Parts, NAPA Auto Parts, Taco Mayo, Video Giant, Domino's pizza' with several more to come. A new 1,311+ house subdivision has been proposed, approved by the city council and annexed into the city limits. This is a huge project, considering the entire population of Quinlan is only 1,370.
Quinlan is just 2 miles from Lake Tawakoni. Lake Tawakoni is approximately 45,000 acres and is the major water source for Quinlan. Water services provided by Cash Special Utility District.