|Founded||May 30, 1925|
|Named for||John W. Martin|
|Largest community||Palm City|
|• Total||753 sq mi (1,950 km2)|
|• Land||543 sq mi (1,410 km2)|
|• Water||209 sq mi (540 km2) 27.8%|
|• Density||292/sq mi (113/km2)|
|Time zone||UTC−5 (Eastern)|
|• Summer (DST)||UTC−4 (EDT)|
Martin County is a county located in the southeastern part of the state of Florida, in the United States. As of the 2020 census, the population was 158,431. Its county seat is Stuart. Martin County is in the Port St. Lucie, FL Metropolitan Statistical Area.
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.
When the county was created, the western contour followed the shore of Lake Okeechobee, as did the borders of Glades, Okeechobee, and Hendry counties. Palm Beach County had historically claimed all of the surface of the lake as part of its area, to its benefit for the distribution of state and federal highway funds. The state representative of Martin County, William Ralph Scott of Stuart, initiated a bill to divide the lake among its adjacent counties, creating a more equitable distribution of state funds for road creation and maintenance. All bordering counties confirmed the justice of this change and supported its ratification, with the exception of Palm Beach County. Representatives from Palm Beach County later presented Representative William Scott with a jug of water, signifying "all the water Bill Scott left Palm Beach County." The jug is in the possession of Stuart Heritage.
|Hobe Sound, FL|
|Climate chart (explanation)|
According to the U.S. Census Bureau, the county has a total area of 753 square miles (1,950 km2), of which 543 square miles (1,410 km2) is land and (27.8%) is water. It is the fifty-fourth largest county in Florida by land area, and fifty-third largest by total area.
According to the U.S. Army Corps of Engineers, the Martin County Shore Protection Project includes nourishment of approximately 3.75 miles of beach extending from the St. Lucie County line south to the Stuart Public Beach Park in Martin County. Included in the project is restoration of the primary dune and a 35-foot-wide protective berm. The renourishment interval for this project is every 7 years.
The last renourishment of the Martin County Shore Protection Project was completed in May 2013 and included a Flood Control and Coastal Emergency component due impacts incurred with the passage of Hurricane Sandy in 2012. The next renourishment event is scheduled for 2019.
The estimated total cost of this project is $69.9 million, $32.5 million of which is to be paid for by the U.S. Federal Government. In Fiscal Year 2015, no funding was appropriated to the project by the U.S. Congress. In the Fiscal Year 2016 U.S. President's Budget Request to the U.S. Congress, no funding dollars was requested for the project.
|U.S. Decennial Census|
|Race||Pop 2010||Pop 2020||% 2010||% 2020|
|Black or African American (NH)||7,493||7,277||5.12%||4.59%|
|Native American or Alaska Native (NH)||248||218||0.17%||0.14%|
|Pacific Islander (NH)||52||42||0.04%||0.03%|
|Some Other Race (NH)||139||525||0.09%||0.33%|
|Hispanic or Latino||17,881||24,187||12.22%||15.27%|
As of the 2020 United States census, there were 158,431 people, 65,014 households, and 40,328 families residing in the county.
As of the census 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 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 together, 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.
The Lake Okeechobee Scenic Trail, a segment of the Florida National Scenic Trail, passes through Martin County.
Martin County is a non-chartered county and its form of government is prescribed by the Florida Constitution and Florida Statutes, as follows:
The Board of County Commissioners is the legislative body of the county and has charge of all county executive and administrative functions, except those assigned by the Constitution to independent county officers or to the independent school district. The board also has some quasi-judicial functions. Some of functions exercised by the board are county-wide, while others are applicable only in the unincorporated areas of the county, where the board has many of the functions of a municipality. The county commissioners are elected by county-wide vote, but each one represents a specific district. The board appoints the county administrator who is responsible to it for the day-to-day operations of the county government. The current county commissioners by district number are:
The elected Constitutional officers are:
The independent Martin County School District has a board appointed superintendent of schools and an elected school board, as follows:
Martin County is a long-standing Republican stronghold which has not supported a Democrat for the White House since Franklin Delano Roosevelt in 1944. Registered Democrats are third in the county, outnumbered by not only Republicans but also Unaffiliated voters.
According to the Secretary of State's office, Republicans are a majority of registered voters in Martin County.
|Martin County Voter Registration & Party Enrollment as of July 31, 2022|
|Political Party||Total Voters||Percentage|
|No party affiliation||28,271||23.98%|
The Martin County Library System has 6 branches.
On the National Register of Historic Places:
Other historic areas listed in 1989 by the Florida Chapter of the American Institute of Architects:
Other places listed in 2012 by the Florida Chapter of the American Institute of Architects in its Florida Architecture: 100 Years. 100 Places.
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