At the 2000 census there were 1,119 people, 435 households, and 338 families in the town. The population density was 585.0 people per square mile. There were 484 housing units at an average density of 253.0 per square mile. The racial makeup of the town was 95.26% White, 2.23% Black or African American, 0.45% Asian, 1.61% from other races, and 0.45% from two or more races. 2.59%. were Hispanic or Latino of any race. Of the 435 households, 35.6% had children under the age of 18 living with them, 66.9% were married couplesliving together, 7.8% had a female householder with no husband present, and 22.1% were non-families. 18.2% of households were made up of individuals, and 9.0% were one person aged 65 or older. The average household size was 2.57, and the average family size was 2.94. The age distribution was 24.8% under the age of 18, 7.1% from 18 to 24, 32.2% from 25 to 44, 23.2% from 45 to 64, and 12.6% 65 or older. The median age was 36 years. For every 100 females, there were 91.9 males. For every 100 females age 18 and over, there were 86.9 males. The median household income was $43,203, and the median family income was $47,596. Males had a median income of $36,957 versus $22,102 for females. The per capita income for the town was $17,872. About 2.4% of families and 5.4% of the population were below the poverty line, including 2.8% of those under age 18 and 8.4% of those age 65 or over.
2010 census
At the 2010 census there were 1,108 people, 457 households, and 323 families in the town. The population density was 583.2 people per square mile. There were 499 housing units at an average density of 262.2 per square mile. The racial makeup of the town was 94.0% White, 3.2% Black or African American, 0.5% Asian, 1.2% from other races, and 1.0% from two or more races. 2.4%. were Hispanic or Latino of any race. Of the 457 households, 28.7% had children under the age of 18 living with them, 56.5% were married couples living together, 10.9% had a female householder with no husband present, and 29.3% were non-families. 26.9% of households were made up of individuals, and 10.7% were one person aged 65 or older. The average household size was 2.42, and the average family size was 2.92. The age distribution was 23.7% under the age of 18, 4.8% from 18 to 24, 26.4% from 25 to 44, 28.5% from 45 to 64, and 16.5% 65 or older. The median age was 40.7 years. For every 100 females, there were 93.7 males. For every 100 females age 18 and over, there were 95.3 males. The median household income was $48,309, and the median family income was $63,182. Males had a median income of $46,563 versus $34,038 for females. The per capita income for the town was $24,209. About 6.3% of families and 10.2% of the population were below the poverty line, including 12.5% of those under age 18 and 11.9% of those age 65 or over.
Arts and culture
Killen Founder's Day is an annual event celebrated during the second weekend in August.
