Martin County Population

1880–2026

10,711

2026 projection

4.8% since 2020 (decrease)

02K4K6K8K10K12K14K18801900192019401960198020002020

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.
202610,711+140.13%
202510,697+140.13%
202410,683-2492.28%
202310,932-1691.52%
202211,101-650.58%
202111,166-860.76%
202011,252-60.05%
201911,258-910.80%
201811,349-1551.35%
201711,504-4573.82%

Showing 10 of 29 years.

Martin County Demographics

40.6median age

Median age

Female44.2 yrs
Male38.8 yrs

Adults

8,848
1,972 seniors (65+) · 22% of adults6,876 other adults

Sex

Female 44.4% · 4,900Male 55.6% · 6,127

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 110 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

$37,042median household income

Median household income

$37,042

Half of households earn more, half earn less

Median earnings

$48,732

Typical yearly pay for a worker 25 or older.

Poverty rate

33.2%

About 1 in 3 residents

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

Martin County Marital Status

44% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married44%40%48%
Never married32%42%19%
Divorced12%10%14%
Widowed8%3%14%
Separated5%5%4%

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