Martin County Demographics

A map of Martin County's Population by Race

Martin County, Florida had a population of 158,431 in 2020. It was 75.2% White, 4.6% Black, 1.4% Asian, 15.3% Hispanic, 0.5% Native American/Other, and 3.0% Multiracial. This map presents the population of Martin County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Martin County is the 32nd most populous county of the 67 counties in Florida.

Martin County's White Population

119,216 residents of Martin County identify as White, or 75.2%. This makes the White share of the population of Martin County considerably larger than the White share of the population of Florida (51.5% White). Of the 67 counties in Florida, Martin County is ranked #19 in terms of White residents as a share of the population.

Martin County is more White than neighboring St. Lucie County (53.6% White), Palm Beach County (52.3% White), Okeechobee County (62.2% White), Indian River County (73.5% White), and Glades County (58.8% White).

Martin County's Black Population

7,277 residents of Martin County identify as Black, or 4.6%. This makes the Black share of the population of Martin County slightly less than the Black share of the population of Florida (14.5% Black). Of the 67 counties in Florida, Martin County is ranked #63 in terms of Black residents as a share of the population.

Martin County is less Black than neighboring St. Lucie County (19.6% Black), Palm Beach County (17.1% Black), Okeechobee County (8.4% Black), Indian River County (8.2% Black), and Glades County (11.8% Black).

Martin County's Asian Population

2,246 residents of Martin County identify as Asian, or 1.4%. This makes the Asian share of the population of Martin County roughly similar to the Asian share of the population of Florida (2.9% Asian). Of the 67 counties in Florida, Martin County is ranked #33 in terms of Asian residents as a share of the population.

Martin County is more Asian than neighboring Okeechobee County (0.8% Asian), and Glades County (0.3% Asian). Martin County is less Asian than neighboring St. Lucie County (1.7% Asian), Palm Beach County (2.9% Asian), and Indian River County (1.5% Asian).

Martin County's Hispanic Population

24,187 residents of Martin County identify as Hispanic, or 15.3%. This makes the Hispanic share of the population of Martin County slightly less than the Hispanic share of the population of Florida (26.5% Hispanic). Of the 67 counties in Florida, Martin County is ranked #22 in terms of Hispanic residents as a share of the population.

Martin County is more Hispanic than neighboring Indian River County (13% Hispanic). Martin County is less Hispanic than neighboring St. Lucie County (20.1% Hispanic), Palm Beach County (23.5% Hispanic), Okeechobee County (24.9% Hispanic), and Glades County (25.2% Hispanic).

Martin County's Native American/Other Population

785 residents of Martin County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.5%. This makes the Native American/Other share of the population of Martin County roughly similar to the Native American/Other share of the population of Florida (0.9% Native American/Other). Of the 67 counties in Florida, Martin County is ranked #62 in terms of Native American/Other residents as a share of the population.

Martin County is less Native American/Other than neighboring St. Lucie County (1% Native American/Other), Palm Beach County (0.9% Native American/Other), Okeechobee County (1.1% Native American/Other), Indian River County (0.7% Native American/Other), and Glades County (2% Native American/Other).

Martin County's Multiracial Population

4,720 residents of Martin County identify as Multiracial, or 3.0%. This makes the Multiracial share of the population of Martin County roughly similar to the Multiracial share of the population of Florida (3.7% Multiracial). Of the 67 counties in Florida, Martin County is ranked #51 in terms of Multiracial residents as a share of the population.

Martin County is more Multiracial than neighboring Okeechobee County (2.6% Multiracial), and Glades County (2% Multiracial). Martin County is less Multiracial than neighboring St. Lucie County (3.9% Multiracial), Palm Beach County (3.4% Multiracial), and Indian River County (3.2% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.