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
Age is the most distinctive thing about Martin County: a median age of 53.2, older than the national median. With 160,464 residents, Martin County is a county in Florida. It ranks #32 among counties in Florida by population.
Households take in a median $80,701, comfortably near the US median of $78,538. About 7.1% of residents live below the federal poverty level, below the national 12.4%. Home prices are steep, with the typical property valued at $386,500, with typical rent around $1,499.
About 36.6% of adults 25 and older have a bachelor’s degree, near the 35.0% national figure. About 13.8% of workers primarily work from home, close to the national 14.0%, and the average commute runs about 28 minutes each way.
The age structure shapes everything downstream in Martin County — from housing demand to the mix of working-age earners reflected in the income figures above.
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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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.