Rancho Viejo is a CDP located in Starr County, Texas. Rancho Viejo has a 2026 population of 152. Rancho Viejo is currently declining at a rate of -2.56% 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 Rancho Viejo is 28.5 years: 24.9 years for males, and 43 years for females. For every 100 females there are 240.0 males.
Data after 2023 is projected based on recent change
Overall: 28.5 years
Female: 43 years
Male: 24.9 years
There are 174 adults, (0 of whom are seniors) in Rancho Viejo.
Female: 70 (29.4%)
Male: 168 (70.6%)
The racial composition of Rancho Viejo includes 55.04% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 131 | 55.04% |
| Two or more races | 107 | 44.96% |