From a total population of 11,713, Garden City has a median age of 35.9. The average age of males, in Garden City, is 34.8 while the average age of females is 37.3. When you compare this to median age of Idaho, Garden City is 0.7 years older.
The median income of individuals, in Garden City, is $28,956 while the average household income is $49,209. When comparing the median income of people living in Garden City to the rest of Idaho, the average income in Garden City is $5,869 more.