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The 2009 Martin County, FL, population is 139,182. There are 251 people per square mile (population density).
The median age is 46.5. The US median is 37.6. 64.76% of people in Martin County, FL, are married. 10.67% are divorced.
The average household size is 2.18 people. 15.72% of people are married, with children. 5.66% have children, but are single.
88.89% of people are white, 5.23% are black, 0.85% are asian, 0.70% are native american, and 4.36% claim 'Other'.
8.83% of the people in Martin County, FL, claim hispanic ethnicity (meaning 91.17% are non-hispanic).
Martin, FL People data
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