Martin County, FL Demographics

The total population of Martin County is estimated to be 159,399 with 78,808 males (49.44%) and 80,591 females (50.56%). There are 1,783 more females than males in Martin County.
The median household income in Martin County was $75,414 in 2021, which marked an an increase of 830(1.11%) from $74,584 in 2020. This income is 101.08% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Martin County sees its highest median household income among householders in the age group of under 25 years old, at $96,425. Overall, the median household income for the county of Martin County stands at $80,024.
In Martin County, the median income for all workers aged 15 years and older, regardless of work hours, was $47,164 for males and $31,208 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $62,386 for males and $52,089 for females.
In Martin County, the demographic landscape is diverse, spanning 4 distinct racial categories among households. Among these, Some Other Race households have the highest median household income at $117,801, while Black or African American households represent the opposite end with the lowest median household income of $42,137.
In 2022, the population of Martin County was 162,006, a 1.10% increase year-by-year from 2021. Previously, in 2021, Martin County's population was 160,249, an increase of 1.00% compared to a population of 158,658 in 2020.
The median age in Martin County, FL is 52.9, as per 2021 ACS 5-Year Estimates. Of the total population, 13.35% were under the age of 15, 13.63% aged 15 to 29, 41.99% aged 30 to 64, 26.59% aged 65 to 84, and 4.44% were 85 years of age and older.
Racial distribution of Martin County population: 85% are White, 5.64% are Black or African American, 0.40% are American Indian and Alaska Native, 1.57% are Asian, 0.06% are Native Hawaiian and other Pacific Islander, 2.43% are some other race and 4.90% are multiracial.