As of the census of 2000, there were 2,148 people, 915 households, and 595 families living in the town.
The population density was 3,026.2 people per square mile (1,168.1/km²).
There were 979 housing units at an average density of 1,379.2 per square mile (532.4/km²).
The racial makeup of the town was 99.02% White, 0.42% African American, 0.09% Native American, 0.09% Asian, and 0.37% from two or more races.
Hispanic or Latino of any race were 0.23% of the population.

There were 915 households, out of which 31.3% had children under the age of 18 living with them, 50.9% were married couples living together, 10.4% had a female householder with no husband present, and 34.9% were non-families.
31.4% of all households were made up of individuals, and 16.4% had someone living alone who was 65 years of age or older.
The average household size was 2.35 and the average family size was 2.93.

In the town, the population was spread out, with 25.7% under the age of 18, 7.1% from 18 to 24, 27.7% from 25 to 44, 22.2% from 45 to 64, and 17.3% who were 65 years of age or older.
The median age was 37 years.
For every 100 females, there were 85.0 males.
For every 100 females age 18 and over, there were 82.1 males.

The median income for a household in the town was $35,639, and the median income for a family was $42,222.
Males had a median income of $36,081 versus $22,111 for females.
The per capita income for the town was $22,466.
About 7.0% of families and 7.1% of the population were below the poverty line, including 8.6% of those under age 18 and 4.1% of those age 65 or over.
As of the census of 2000, there were 2,148 people, 915 households, and 595 families living in the town. The population density was 3,026.2 people per square mile (1,168.1/km²). There were 979 housing units at an average density of 1,379.2 per square mile (532.4/km²). The racial makeup of the town was 99.02% White, 0.42% African American, 0.09% Native American, 0.09% Asian, and 0.37% from two or more races. Hispanic or Latino of any race were 0.23% of the population.
There were 915 households, out of which 31.3% had children under the age of 18 living with them, 50.9% were married couples living together, 10.4% had a female householder with no husband present, and 34.9% were non-families. 31.4% of all households were made up of individuals, and 16.4% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.93.
In the town, the population was spread out, with 25.7% under the age of 18, 7.1% from 18 to 24, 27.7% from 25 to 44, 22.2% from 45 to 64, and 17.3% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 85.0 males. For every 100 females age 18 and over, there were 82.1 males.
The median income for a household in the town was $35,639, and the median income for a family was $42,222. Males had a median income of $36,081 versus $22,111 for females. The per capita income for the town was $22,466. About 7.0% of families and 7.1% of the population were below the poverty line, including 8.6% of those under age 18 and 4.1% of those age 65 or over.
Knightstown, Indiana