Martin County's estimated 2026 population is 5,137 with a growth rate of -0.41% in the past year according to the most recent United States census data. Martin County is the 197th largest county in Texas. The 2010 population was 4,809 and has seen a growth of 6.82% since that time.
Data after 2023 is projected based on recent change
The racial composition of Martin County includes 76.46% White, 9.48% other race, and smaller percentages for Black or African American and multiracial populations.
White (76.46%)
Two or more races (12.83%)
Other race (9.48%)
Black or African American (1.22%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,999 | 76.46% |
| Two or more races | 671 | 12.83% |
| Other race | 496 | 9.48% |
| Black or African American | 64 | 1.22% |
Married
Widowed
Divorced
Separated
Never Married
Martin County's average per capita income is $58,125. Household income levels show a median of $77,083. The poverty rate stands at 8.11%.
Name | Median | Mean |
|---|---|---|
| Married Families | $93,162 | - |
| Families | $92,696 | $129,426 |
| Households | $77,083 | $116,270 |
| Non Families | - | $46,436 |
Average Income
Median Household Income
Poverty Rate
