The 2016 Boulder, Colorado, population is 107,349. There are 4,320 people per square mile (population density).
The median age is 28.3. The US median is 37.4. 33.93% of people in Boulder, Colorado, are married. 7.94% are divorced.
The average household size is 2.23 people. 33.78% of people are married, with children. 12.15% have children, but are single.
82.66% of people are white, 0.90% are black, 4.67% are asian, 0.11% are native american, and 0.14% claim 'Other'.
8.89% of the people in Boulder, Colorado, claim hispanic ethnicity (meaning 91.11% are non-hispanic).
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