From a total population of 596,684, Arapahoe County has a median age of 36. The average age of males, in Arapahoe County, is 34.8 while the average age of females is 37.3. When you compare this to median age of Colorado, Arapahoe County is 0.2 years younger.
The median income of individuals, in Arapahoe County, is $33,574 while the average household income is $62,213. When comparing the median income of people living in Arapahoe County to the rest of Colorado, the average income in Arapahoe County is $1,900 more.