Martin County, Texas Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 200th-largest in Texas
The population of Martin County, Texas is 5,230 as of the 2023 American Community Survey, making it the 200th-largest county in Texas. The median household income is $77,083, the median home value is $162,200, and the median age is 37.2.
The population of Martin County has grown 7.7% since 2010 (4,809 → 5,179), a +0.53% annualized rate.
5,230
Population
+0.53%
Annual growth
6
People / sq mi
$77,083
Median Income
$162,200
Median Home Value
Martin County covers 915 sq mi of land at 5.7 people per square mile.
About Martin County, TX
Martin County is a county in Texas with a population of 5,230. It ranks #200 among counties in Texas by population. The median age is 37.2, younger than the national median. The population is 57.4% male and 42.6% female.
The median household income in Martin County is $77,083, near the US median of $74,580. 3.3% of residents live below the federal poverty level. Home values sit at a median of $162,200, with monthly rent averaging $1,175. The homeownership rate of 66.9% is close to the national rate of 64.8%.
Educational attainment in Martin County reflects 17.8% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 1.1% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 22.0 minutes each way.
Martin County Population History (2010-2024)
The county of Martin County had a population of 4,809 in 2010 and 5,179 in 2024, a 7.7% growth over 14 years. The peak was 5,743 in 2019. Average annual growth rate: 0.58%.
5,179
Population (2024)
4,809
Population (2010)
5,743
Peak (2019)
0.58%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 4,809 |
| 2011 | 4,885 |
| 2012 | 4,976 |
| 2013 | 5,268 |
| 2014 | 5,457 |
| 2015 | 5,639 |
| 2016 | 5,627 |
| 2017 | 5,526 |
| 2018 | 5,668 |
| 2019 | 5,743 |
| 2020 | 5,261 |
| 2021 | 5,224 |
| 2022 | 5,226 |
| 2023 | 5,200 |
| 2024 | 5,179 |
Race & Ethnicity
| White | 76.5% |
| Black or African American | 1.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.6% |
| Two or More Races | 0.0% |
Age & Sex
37.2
Median Age
42.6%
Female
57.4%
Male
10.7%
Age 65+
Age Distribution
Children (under 15): 24.4% · Seniors (65+): 10.7%
Income & Poverty
| Median household income | $77,083+$791 vs state |
| Mean household income | $116,270 |
| Per-capita income | $46,701 |
| Poverty rate | 3.3%-7.2% vs state |
| Unemployment rate | 4.1% |
| Employment-to-population | 61.1% |
Top Industries by Employment
The largest employment sector in Martin County is agriculture, accounting for 26.2% of workers.
How residents commute
0.0%
Drive alone
4.1%
Carpool
82.4%
Public transit
1.1%
Work from home
22.0 min
Avg commute
Housing
$162,200$-98,200 vs state
Median home value
$1,175
Median rent
66.9%
Homeownership rate
2,207
Total housing units
92.1%
Occupied
7.9%
Vacant
33.1%
Renter-occupied
Social & access
84.5%
With health insurance
94.2%
With broadband internet
13.6%
Foreign-born
2.0%
Veterans (18+)
8.7%
With a disability
67.2%
Speak language other than English at home
Education
83.8%
High School+
17.8%
Bachelor's+
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Part of Texas
Metro areas in Texas
County rankings
Frequently Asked Questions
Martin County, Texas has a population of 5,230 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 200th-largest county in Texas. Population density is 6 people per square mile.
The population of Martin County has grown 7.7% since 2010 (4,809 → 5,179), a +0.53% annualized rate.
The median household income in Martin County, Texas is $77,083, with mean (average) household income of $116,270 and per-capita income of $46,701. 3.3% of residents live below the federal poverty level.
In Martin County, the largest racial and ethnic groups are White (76.5%), Hispanic or Latino (3.6%), Black or African American (1.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Martin County, Texas is 37.2 years. Residents are 42.6% female and 57.4% male.
The median home value in Martin County is $162,200 and median monthly rent is $1,175. 66.9% of occupied housing units are owner-occupied. The county has 2,207 total housing units, 7.9% of which are vacant.
The largest employment sector in Martin County, Texas is agriculture, forestry, fishing, and mining, employing 26.2% of workers. The unemployment rate is 4.1%.
Houston is among the largest cities associated with Martin County, Texas, with a population of 2,300,419.
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Statewide data for Texas
Population, race, income, age, and trends across Texas
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.