Martin County, Florida Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 32nd-largest in Florida
The population of Martin County, Florida is 160,464 as of the 2023 American Community Survey, making it the 32nd-largest county in Florida. The median household income is $80,701, the median home value is $386,500, and the median age is 53.2.
The population of Martin County has grown 12.8% since 2010 (146,912 → 165,666), a +0.86% annualized rate.
160,464
Population
+0.86%
Annual growth
295
People / sq mi
$80,701
Median Income
$386,500
Median Home Value
Martin County covers 544 sq mi of land at 295.1 people per square mile.
About Martin County, FL
Martin County is a county in Florida with a population of 160,464. It ranks #32 among counties in Florida by population. The median age is 53.2, older than the national median. The population is 49.5% male and 50.5% female.
The median household income in Martin County is $80,701, above the US median of $74,580. 7.1% of residents live below the federal poverty level. Home values sit at a median of $386,500, with monthly rent averaging $1,499. The homeownership rate of 80.1% is higher than the national rate of 64.8%.
Educational attainment in Martin County reflects 36.6% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 13.8% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 28.0 minutes each way.
Martin County Population History (2010-2024)
The county of Martin County had a population of 146,912 in 2010 and 165,666 in 2024, a 12.8% growth over 14 years. The peak was 165,666 in 2024. Average annual growth rate: 0.86%.
165,666
Population (2024)
146,912
Population (2010)
165,666
Peak (2024)
0.86%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 146,912 |
| 2011 | 147,904 |
| 2012 | 149,032 |
| 2013 | 151,197 |
| 2014 | 153,218 |
| 2015 | 155,674 |
| 2016 | 158,425 |
| 2017 | 159,716 |
| 2018 | 160,661 |
| 2019 | 161,212 |
| 2020 | 158,669 |
| 2021 | 159,925 |
| 2022 | 162,379 |
| 2023 | 164,241 |
| 2024 | 165,666 |
Race & Ethnicity
| White | 80.9% |
| Black or African American | 5.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.3% |
| Two or More Races | 0.0% |
Age & Sex
53.2
Median Age
50.5%
Female
49.5%
Male
31.8%
Age 65+
Age Distribution
Children (under 15): 13.1% · Seniors (65+): 31.8%
Income & Poverty
| Median household income | $80,701+$8,990 vs state |
| Mean household income | $120,690 |
| Per-capita income | $52,532 |
| Poverty rate | 7.1%-1.8% vs state |
| Unemployment rate | 2.4% |
| Employment-to-population | 50.1% |
Top Industries by Employment
The largest employment sector in Martin County is professional & business services, accounting for 19.4% of workers.
How residents commute
0.2%
Drive alone
1.0%
Carpool
73.6%
Public transit
13.8%
Work from home
28.0 min
Avg commute
Housing
$386,500+$61,500 vs state
Median home value
$1,499
Median rent
80.1%
Homeownership rate
82,297
Total housing units
82.4%
Occupied
17.6%
Vacant
19.9%
Renter-occupied
Social & access
89.8%
With health insurance
96.1%
With broadband internet
56.3%
Foreign-born
9.1%
Veterans (18+)
14.0%
With a disability
84.7%
Speak language other than English at home
Education
92.7%
High School+
36.6%
Bachelor's+
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Part of Florida
Metro areas in Florida
County rankings
Frequently Asked Questions
Martin County, Florida has a population of 160,464 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 32nd-largest county in Florida. Population density is 295 people per square mile.
The population of Martin County has grown 12.8% since 2010 (146,912 → 165,666), a +0.86% annualized rate.
The median household income in Martin County, Florida is $80,701, with mean (average) household income of $120,690 and per-capita income of $52,532. 7.1% of residents live below the federal poverty level.
In Martin County, the largest racial and ethnic groups are White (80.9%), Black or African American (5.0%), Hispanic or Latino (1.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Martin County, Florida is 53.2 years. Residents are 50.5% female and 49.5% male.
The median home value in Martin County is $386,500 and median monthly rent is $1,499. 80.1% of occupied housing units are owner-occupied. The county has 82,297 total housing units, 17.6% of which are vacant.
The largest employment sector in Martin County, Florida is professional, scientific, and management services, employing 19.4% of workers. The unemployment rate is 2.4%.
Jacksonville is among the largest cities associated with Martin County, Florida, with a population of 961,739.
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Statewide data for Florida
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.