From a total population of 89,536, Buchanan County has a median age of 36.8. The average age of males, in Buchanan County, is 35.5 while the average age of females is 38.4. When you compare this to median age of Missouri, Buchanan County is 1.3 years younger.
The median income of individuals, in Buchanan County, is $22,839 while the average household income is $44,971. When comparing the median income of people living in Buchanan County to the rest of Missouri, the average income in Buchanan County is $3,167 less.