The 2018 population estimate for Quincy
is 94,121,
a change of
1.29%
when compared to 2014. With an area of 26.91 square miles, this works out to a population
density of 3,498.26 persons/mi2.
The number of households in 2018 were estimated to
be 40,583, with an average
household size of 2.29.
Quincy's 2018 unemployment rate was
5.38%.
The average household income in Quincy for 2018 was
$91,585,
while the median was $74,180.