Martin County Population

1930–2026

167.34K

2026 projection

5.5% since 2020 (increase)

050K100K150K200K19401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Martin County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026167,342+1,0700.64%
2025166,272+1,0700.65%
2024165,202+1,2060.74%
2023163,996+1,6381.01%
2022162,358+2,1341.33%
2021160,224+1,5680.99%
2020158,656-2,5561.59%
2019161,212+5510.34%
2018160,661+9450.59%
2017159,716+1,2910.81%

Showing 10 of 24 years.

Martin County Demographics

53.3median age

Median age

Female55 yrs
Male51.3 yrs

Adults

136,042
52,205 seniors (65+) · 38% of adults83,837 other adults

Sex

Female 50.5% · 81,860Male 49.5% · 80,316

Population by age

MaleFemale85+ years, male: 2,84885+ years, female: 3,69980–84 years, male: 3,70680–84 years, female: 4,20475–79 years, male: 5,43875–79 years, female: 6,42570–74 years, male: 6,05170–74 years, female: 6,33265–69 years, male: 6,12365–69 years, female: 7,37960–64 years, male: 6,38960–64 years, female: 6,96255–59 years, male: 5,79155–59 years, female: 5,96950–54 years, male: 5,00850–54 years, female: 4,87745–49 years, male: 4,20245–49 years, female: 3,99440–44 years, male: 4,38640–44 years, female: 3,62335–39 years, male: 3,91035–39 years, female: 3,90430–34 years, male: 4,23930–34 years, female: 3,65225–29 years, male: 3,73625–29 years, female: 3,25420–24 years, male: 4,00520–24 years, female: 3,19315–19 years, male: 3,91715–19 years, female: 3,86110–14 years, male: 3,58510–14 years, female: 3,7975–9 years, male: 3,8015–9 years, female: 3,4620–4 years, male: 3,1810–4 years, female: 3,27385+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K6K6K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 1,622 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Martin County Income

$82,943median household income

Median household income

$82,943

Half of households earn more, half earn less

Median earnings

$47,104

Typical yearly pay for a worker 25 or older.

Poverty rate

11.3%

About 1 in 9 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Martin County Marital Status

53% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married53%54%51%
Never married25%29%21%
Divorced13%12%15%
Widowed9%4%13%
Separated1%<1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year