The 2016 Dewey, Oklahoma, population is 3,499. There are 1,233 people per square mile (population density).
The median age is 35.7. The US median is 37.4. 50.84% of people in Dewey, Oklahoma, are married. 17.61% are divorced.
The average household size is 2.4 people. 30.47% of people are married, with children. 29.41% have children, but are single.
62.03% of people are white, 1.35% are black, 2.27% are asian, 14.79% are native american, and 0.00% claim 'Other'.
9.90% of the people in Dewey, Oklahoma, claim hispanic ethnicity (meaning 90.10% are non-hispanic).
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