The 2016 Knox, Indiana, population is 3,597. There are 918 people per square mile (population density).
The median age is 36.3. The US median is 37.4. 45.79% of people in Knox, Indiana, are married. 15.74% are divorced.
The average household size is 2.5 people. 26.40% of people are married, with children. 26.40% have children, but are single.
92.62% of people are white, 0.38% are black, 0.00% are asian, 0.00% are native american, and 0.00% claim 'Other'.
6.83% of the people in Knox, Indiana, claim hispanic ethnicity (meaning 93.17% are non-hispanic).
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