Martin County, FL Population

Overview

158,323

Total Population

52.9

Median age

50.38%

Female population %

98.5:100

Gender ratio (M:F)

60-64 years

Largest age group

79.8

Total dependency ratio

White

Largest racial group

22,339

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Martin County's population is old compared to the rest of the country:

The median age in Martin County is 52.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Martin County's population under 18 was 16.42%, compared to the 22.51% nationwide.
Martin County's elderly or the senior population (over 65 age) was 31.03% as compared to 16.04% nationwide.
Of the total population in Martin County, 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.

There are 1,209 more females than males in Martin County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.38% females and 49.62% males in Martin County, FL.
The Martin County, FL gender ratio is 98.5:100 i.e. 98.5 men to 100 women (0.985).
For male population, the largest age group is 60-64 years with a population of 6,510.
For the female population, the largest age group is 65-69 years with a population of 7,147.

Martin County's population has become increasingly diverse:

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.
Martin County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 22,339 is Hispanic or Latino (of any race), and 135,984 (85.89% of the total population) is Non-Hispanic.
The largest racial group in Martin County is White with a population of 134,574 (85% of the total population).

Martin County's population has not reached its peak yet and is showing a trend of further growth:

The peak population was 162,006 in the year 2022
From 2000 to 2010, Martin County's population increased by 19,723 (15.51%), as compared to the national growth of 9.63%.
From 2010 to 2020, Martin County's population increased by 11,746 (8.00%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Martin County's population was lowest in year 2000 at 127,189.