From a total population of 31,764, Lewiston has a median age of 40.7. The average age of males, in Lewiston, is 38.5 while the average age of females is 43.3. When you compare this to median age of Idaho, Lewiston is 5.5 years older.
The median income of individuals, in Lewiston, is $24,443 while the average household income is $45,148. When comparing the median income of people living in Lewiston to the rest of Idaho, the average income in Lewiston is $1,356 more.