Port Mansfield is a CDP located in Willacy County, Texas. Port Mansfield has a 2026 population of 141. Port Mansfield is currently declining at a rate of -3.42% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median age in Port Mansfield is 60.8 years: 66.5 years for males, and 41 years for females. For every 100 females there are 87.0 males.
Data after 2023 is projected based on recent change
Overall: 60.8 years
Female: 41 years
Male: 66.5 years
There are 189 adults, (114 of whom are seniors) in Port Mansfield.
Female: 131 (53.5%)
Male: 114 (46.5%)
The racial composition of Port Mansfield includes 93.88% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 230 | 93.88% |
| Two or more races | 15 | 6.12% |