Martin County, FL demographics:
population, income, and more

Total population
162,176
1.1% year-over-year change
Median household income
$82,943/yr
2.8% year-over-year change
Housing units
83,121
1.0% year-over-year change

Martin County population

How many people live in Martin County

Martin County is home to 162,176 residents, according to the most recent Census data. Gender-wise, 49.5% of Martin County locals are male, and 50.5% are female.

Total population
162,176
1.1% year-over-year change
Gender ratio
Male
49.5%
80,316
Female
50.5%
81,860
Value Percent YoY change
Male 80,316 49.5% 1.1%
Female 81,860 50.5% 1.0%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Martin County is 53, with the population distributed as follows: about 13% are children under 15, then 9.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 18.9% of the population, while another 26.6% fall into the 45 to 64 bracket. Finally, around 32.2% are 65 or older.

Median age
53.3
Age breakdown
Under 15
13%
15 to 24
9.2%
25 to 44
18.9%
45 to 64
26.6%
Over 65
32.2%
Value Percent YoY change
Under 15 21,099 13% 0.3%
15 to 24 14,976 9.2% 1.4%
25 to 44 30,704 18.9% 1.9%
45 to 64 43,192 26.6% -0.8%
Over 65 52,205 32.2% 2.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Martin County, 87% of the population are US-born citizens, while 7.9% have gained naturalized citizenship. At the same time, 5.1% of residents are non-citizens. As for race, 78.2% of locals are Caucasian, 4.8% are African American and 1.4% have Asian roots. There’s also a share of 10.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
87%
Non-U.S.-born citizens
7.9%
Non-citizens
5.1%
Value Percent YoY change
U.S.-born citizens 141,096 87% 1.2%
Non-U.S.-born citizens 12,872 7.9% -3.2%
Non-citizens 8,208 5.1% 5.0%
Racial breakdown
White
78.2%
Black or African American
4.8%
American Indian and Alaska Native
0.4%
Asian
1.4%
Native Hawaiian and other Pacific Islander
0%
Two or more races
10.8%
Other
4.4%
Value Percent
White 126,895 78.2%
Black or African American 7,761 4.8%
American Indian and Alaska Native 616 0.4%
Asian 2,196 1.4%
Native Hawaiian and other Pacific Islander 57 0%
Two or more races 17,542 10.8%
Other 7,109 4.4%

Households in Martin County

A peek inside Martin County households

Martin County has 67,801 households, with an average of 2 members in each. Of these, 62.9% are families, while the remaining 37.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
67,801
-0.0% year-over-year change
Average people per household
2
Non-family households
25,150
Family households
42,651
Value Percent YoY change
Non-family households 25,150 37.1% -1.4%
Family households 42,651 62.9% 0.8%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Martin County

The housing landscape of Martin County

Martin County's housing consists of 83,121 units, with 54.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 7.9% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 8.8% of the housing landscape.

Housing units
83,121
1.0% year-over-year change
Housing types
Value Percent
1 unit, detached 45,029 54.2%
1 unit, attached 6,530 7.9%
2 units 1,642 2%
3 or 4 units 4,272 5.1%
5 to 9 units 5,953 7.2%
10 to 19 units 6,535 7.9%
20 to 49 units 3,715 4.5%
50 or more units 2,022 2.4%
Mobile home 7,306 8.8%
Boat, RV, van, etc. 117 0.1%
Homes built since 2020
1,642
93.0% year-over-year change

The age of buildings in Martin County

In Martin County, the median construction year is 1986. About 1.4% of homes were built before the 1940s, with another 0.7% going up by 1949. Most development happened in the second half of the 20th century. Then, 16.2% of homes were added from 2000 to 2009, 5.4% between 2010 and 2019, and 2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,206 1.4% -2.1%
Built between 1940 and 1949 585 0.7% -3.9%
Built between 1950 and 1959 3,199 3.8% 4.0%
Built between 1960 and 1969 4,811 5.8% -0.8%
Built between 1970 and 1979 18,009 21.7% 4.3%
Built between 1980 and 1989 23,127 27.8% -2.5%
Built between 1990 and 1999 12,579 15.1% -0.5%
Built between 2000 and 2009 13,469 16.2% 0.8%
Built between 2010 and 2019 4,494 5.4% -4.5%
Built in 2020 or later 1,642 2% 93.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Martin County occupancy rates

Out of the 67,801 occupied housing units in Martin County, 79.6% are owner-occupied, while 20.4% are lived in by tenants. Meanwhile, 18.4% of all homes on the local market sit vacant.

Occupied housing units
67,801
-0.0% year-over-year change
Occupancy breakdown
Renter occupied
13,803
Owner occupied
53,998
Value Percent YoY
change
Renter occupied 13,803 20.4% 2.3%
Owner occupied 53,998 79.6% -0.6%
Unoccupied housing units
18.4%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Martin County housing costs

Housing costs in Martin County come to a median of $1,382 per month, while tenants specifically pay a median gross rent of $1,569.

Median housing costs per month
$1,382/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Martin County
$1,569/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Martin County

Martin County education at a glance

About 29% of the population in Martin County went to high school, while 23.2% pursued college studies. Another 9.2% earned an associate degree and 22.9% hold a bachelor’s. Meanwhile, 12.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 4,607 3.4% 11.7%
High school diploma 39,521 29% -0.0%
College diploma 31,555 23.2% -0.2%
Associate degree 12,448 9.2% 0.1%
Bachelor's degree 31,147 22.9% 2.8%
Graduate degree 16,764 12.3% 2.5%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Martin County

How much people earn in Martin County

The average annual household income in Martin County was $123,323 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.2% change from the previous year. At the same time, the median income stood at $82,943, reflecting a +2.8% shift over the same period.

Average household income in Martin County
$123,323/year
2.2% year-over-year change
Median household income in Martin County
$82,943/year
2.8% year-over-year change

Martin County income by age

In Martin County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $94,818. Those with someone between 45 and 64 in charge, often well established professionally, earn $102,816 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $39,726, while those led by someone over 65, many of whom may be retired, have about $69,533 in earnings. Overall, 88.7% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $39,726 12.4%
25 - 44 $94,818 7.7%
45 - 64 $102,816 1.3%
Over 65 $69,533 2.7%
Above poverty level
139,651
Below poverty level
17,796
Value Percent YoY
change
Above poverty level 139,651 88.7% 1.1%
Below poverty level 17,796 11.3% 0.6%

Employment in Martin County

Workforce and job types in Martin County

The job market in Martin County is powered by 68,807 working residents, spread across a range of industries and roles. 81.2% of the working population are employed in professional or administrative positions, while 18.8% are in hands-on or service-based jobs. Also, 16.9% run their own businesses, 67.7% are employed by private companies, and 8.2% work in the public sector.

Workforce demographics

Working population
68,807
-0.0% year-over-year change
White collar
55,861
Blue collar
12,946
Value Percent YoY change
White collar 55,861 81.2% -0.0%
Blue collar 12,946 18.8% -0.2%
Employer type
Self employees
16.9%
Private companies
67.7%
Governmental workers
8.2%
Not for profit companies
7.2%
Value Percent YoY change
Self employees 11,649 16.9% 1.8%
Private companies 46,560 67.7% -0.3%
Governmental workers 5,652 8.2% -7.5%
Not for profit companies 4,946 7.2% 8.5%
Unemployment rate
4.9%
8.4% year-over-year change

Available workforce

The unemployment rate in Martin County stands at 4.9%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Martin County

How people get around in Martin County

In Martin County, the average commute time is 28 minutes. Commuting methods vary: 80.3% of residents travel by personal vehicle and 1.2% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
28 min
Means of transportation
Value Percent YoY change
Car 54,188 80.3% -2.7%
Taxicab 37 0% 48.0%
Bus or trolleybus 184 0.3% 162.9%
Railroad 41 0.1% 5.1%
Motorcycle 83 0.1% -17.8%
Bicycle 357 0.5% -24.0%
Walk 842 1.2% 21.3%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Martin County by zipcode?

Zipcode Population Number of households Median income Average income
34990 30,592 12,082 $129,560 $167,572
34994 18,737 8,197 $62,533 $92,895
34956 9,630 2,019 $64,526 $81,688
34957 23,462 11,200 $70,403 $103,981
34974 23,975 10,272 $53,013 $71,491
33438 257 124 $0 $66,672
33455 20,018 9,253 $70,389 $115,257
33458 55,512 21,097 $109,729 $164,233
33469 14,686 6,726 $106,265 $163,148
33478 14,731 5,244 $139,091 $172,986

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FAQs about Martin County demographics 

What is the total population of Martin County?

Martin County has a total population of 162,176 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.1% compared to a year ago.

What is the gender ratio in Martin County?

The gender ratio in Martin County is as follows:
  • 49.5% males (80,316 residents)
  • 50.5% females (81,860 residents)

What is the median age in Martin County?

The median age in Martin County is 53.3.

What is the age distribution of the population in Martin County?

The age distribution in Martin County is as follows:
  • Under 15: 13% (21,099 residents)
  • Ages 15-24: 9.2% (14,976 residents)
  • Ages 25-44: 18.9% (30,704 residents)
  • Ages 45-64: 26.6% (43,192 residents)
  • Over 65: 32.2% (52,205 residents)

What is the racial and ethnic makeup of Martin County?

The racial and ethnic makeup of Martin County is as follows:
  • White: 78.2% (126,895 residents)
  • Black or African American: 4.8% (7,761 residents)
  • American Indian and Alaska Native: 0.4% (616 residents)
  • Asian: 1.4% (2,196 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (57 residents)
  • Two or More Races: 10.8% (17,542 residents)
  • Other: 4.4% (7,109 residents)

What percentage of the population in Martin County are U.S.-born citizens?

U.S.-born citizens represent 87% of the population in Martin County.

How many housing units are there in Martin County?

There are 83,121 housing units in Martin County, reflecting a +1.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Martin County and what is the average household size?

Martin County has a total of 67,801 households, with an average of 2 people in each.

What is the median household income in Martin County?

Martin County has a median household income of $82,943, representing a +2.8% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Martin County?

The employment rate is 95.1% in Martin County, with a workforce of 68,807 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 81.2% (55,861 residents)
  • Blue-collar workers: 18.8% (12,946 residents)

Places of employment:
  • Self-employed: 16.9% (11,649 residents)
  • Private companies: 67.7% (46,560 residents)
  • Governmental workers: 8.2% (5,652 residents)
  • Not-for-profit companies: 7.2% (4,946 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025