The 2014 Knox, Indiana, population is 3,687. There are 941 people per square mile (population density).
The median age is 35.9. The US median is 37.2. 49.91% of people in Knox, Indiana, are married. 14.33% are divorced.
The average household size is 2.5 people. 34.48% of people are married, with children. 24.60% have children, but are single.
98.51% of people are white, 0.30% are black, 0.00% are asian, 0.00% are native american, and 0.27% claim 'Other'.
2.63% of the people in Knox, Indiana, claim hispanic ethnicity (meaning 97.37% are non-hispanic).
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