|• Total||0.9 sq mi (2.2 km2)|
|• Land||0.9 sq mi (2.2 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||784 ft (239 m)|
|• Density||1,045.1/sq mi (403.5/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||1094318|
Kellyville was named for James E. Kelly, who established a trading post here about 1892 and opened a post office on November 27, 1893. The St. Louis and Oklahoma City Railroad (later merged into the St. Louis and San Francisco Railway built a line through Kellyville in 1898.
Oklahoma’s worst train disaster took place just west of here on September 28, 1917, when two frisco trains collided, twenty-three people were killed and eighty were injured. It was the bloodiest train wreck in the history for many years because of all the cattle killed in the accident. In the early 1970’s, there were plans to build a ski resort here, (the states first) using artificial snow, but the idea was short lived due to the climate. 
Oil and gas were discovered nearby in 1915. This created a population boom and attracted construction of a refinery in Kellyville. By 1930, the population was 548. Although oil and gas production has waned, population continued to grow. Now, 97 percent of the employed residents commute to jobs in Sapulpa and Tulsa.
Kellyville is located at . It is about eight miles southwest of Sapulpa, Oklahoma on U. S. Route 66. According to the United States Census Bureau, the town has a total area of 0.9 square miles (2.3 km2), all of it land.(35.942771, -96.219497)
As of the census of 2000, there were 906 people, 349 households, and 258 families residing in the town. The population density was 1,045.1 people per square mile (402.1/km²). There were 413 housing units at an average density of 476.4 per square mile (183.3/km²). The racial makeup of the town was 83.55% White, 0.66% African American, 10.15% Native American, 0.11% Pacific Islander, 0.55% from other races, and 4.97% from two or more races. Hispanic or Latino of any race were 1.32% of the population.
There were 349 households out of which 33.5% had children under the age of 18 living with them, 53.3% were married couples living together, 14.9% had a female householder with no husband present, and 25.8% were non-families. 23.5% of all households were made up of individuals and 11.2% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.03.
In the town the population was spread out with 26.4% under the age of 18, 10.5% from 18 to 24, 27.7% from 25 to 44, 22.5% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 91.1 males. For every 100 females age 18 and over, there were 87.9 males.
The median income for a household in the town was $30,688, and the median income for a family was $32,297. Males had a median income of $27,639 versus $18,229 for females. The per capita income for the town was $11,978. About 9.2% of families and 12.3% of the population were below the poverty line, including 19.8% of those under age 18 and 8.1% of those age 65 or over.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- CensusViewer: Population of Kellyville, Oklahoma. Retrieved March 17, 2012 
- Wilson, Linda D. Encyclopedia of Oklahoma History and Culture. "Kellyville" Retrieved March 23, 2012.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.