History
Martin County was created in 1925 with the northern portion coming from St. Lucie County and southern portion coming from Palm Beach County. It was named for John W. Martin, Governor of Florida from 1925 to 1929.
Demographics
As of the census[2] of 2000, there were 126,731 people, 55,288 households, and 36,213 families residing in the county. The population density was 228 per square mile (88 /km2). There were 65,471 housing units at an average density of 118 per square mile (46 /km2). The racial makeup of the county was 89.88% White, 5.27% Black or African American, 0.30% Native American, 0.60% Asian, 0.10% Pacific Islander, 2.72% from other races, and 1.14% from two or more races. 7.50% of the population were Hispanic or Latino of any race.
In 2005 the county population was 83.9% non-Hispanic white, 9.1% Latino and 5.5% African-American. (Source=http://quickfacts.census.gov/qfd/states/12/12085.html)
In 2000 there were 55,288 households out of which 21.50% had children under the age of 18 living with them, 55.00% were married couples living ogether, 7.40% had a female householder with no husband present, and 34.50% were non-families. 29.00% of all households were made up of individuals and 16.00% had someone living alone who was 65 years of age or older. The average household size was 2.23 and the average family size was 2.71.
In the county the population was spread out with 18.60% under the age of 18, 5.30% from 18 to 24, 22.90% from 25 to 44, 24.90% from 45 to 64, and 28.20% who were 65 years of age or older. The median age was 47 years. For every 100 females there were 96.40 males. For every 100 females age 18 and over, there were 94.20 males.
The median income for a household in the county was $43,083, and the median income for a family was $53,244. Males had a median income of $36,133 versus $27,000 for females. The per capita income for the county was $29,584. About 5.60% of families and 8.80% of the population were below the poverty line, including 13.80% of those under age 18 and 5.20% of those age 65 or over.
