From a total population of 4,803, Colby has a median age of 33.6. The average age of males, in Colby, is 32 while the average age of females is 35.7. When you compare this to median age of Kansas, Colby is 2.4 years younger.
The median income of individuals, in Colby, is $25,314 while the average household income is $44,207. When comparing the median income of people living in Colby to the rest of Kansas, the average income in Colby is $2,053 less.