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
Remote work is unusually rare in Martin County: 1.1% of workers primarily work from home, below the 14.0% national rate. Martin County is a county in Texas with a population of 5,230.
The typical household earns $77,083 a year, near the US median of $78,538. Very few residents live in poverty — 3.3%, below the national 12.4%. Homes carry a median value of $162,200, with typical rent around $1,175.
College attainment is 17.8%, below the national 35.0%. Home-based work is uncommon, at 1.1%, below the national 14.0%, and the average commute runs about 22 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+
Largest cities in Texas
Other counties in Texas
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.
Martin County, TX Climate
Martin County, TX has an average annual temperature of 17.1°C (63°F) and receives about 442 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
17.1°C
Avg Temp
442
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 5° / 42° | 15 mm |
| February | 8° / 47° | 18 mm |
| March | 13° / 55° | 19 mm |
| April | 17° / 63° | 28 mm |
| May | 22° / 72° | 52 mm |
| June | 26° / 79° | 54 mm |
| July | 28° / 82° | 50 mm |
| August | 27° / 80° | 46 mm |
| September | 23° / 74° | 78 mm |
| October | 18° / 64° | 45 mm |
| November | 11° / 52° | 20 mm |
| December | 7° / 44° | 17 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Martin County, TX
The most comfortable months to visit Martin County, TX are typically May, April and October, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 35°C high). The coldest is January (near -3°C low). September is usually the wettest month.
Where to stay near Martin County
Visiting or relocating to Martin County, TX? Compare hotels and short-term rentals across the county — live availability and prices.
Top-rated places to stay near Martin County
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to Martin County?
Get relocation and cost-of-living insights for Martin County, TX by email. No spam, unsubscribe anytime.
More from Texas
Population 4,758,579
Population 2,603,816
Population 2,135,743
Population 2,037,344
Full rankings of Texas counties
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.