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The 2009 Columbia, CA, population is 2,520. There are 411 people per square mile (population density).
The median age is 45.6. The US median is 37.6. 56.69% of people in Columbia, CA, are married. 13.76% are divorced.
The average household size is 2.18 people. 10.30% of people are married, with children. 11.59% have children, but are single.
88.26% of people are white, 1.48% are black, 1.74% are asian, 1.42% are native american, and 7.54% claim 'Other'.
8.64% of the people in Columbia, CA, claim hispanic ethnicity (meaning 91.36% are non-hispanic).
Columbia, CA People data
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Historic Township: Nice state park with lots of gold mining... (read more)
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