From a total population of 13,950, Rio Grande City has a median age of 29.2. The average age of males, in Rio Grande City, is 27.6 while the average age of females is 31.2. When you compare this to median age of Texas, Rio Grande City is 4.7 years younger.
The median income of individuals, in Rio Grande City, is $11,935 while the average household income is $25,906. When comparing the median income of people living in Rio Grande City to the rest of Texas, the average income in Rio Grande City is $14,578 less.