The City of Quincy had a population of 40,157 as of July 1, 2018. Quincy ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.
The primary coordinate point for Quincy is located at latitude 39.9337 and longitude -91.3793 in Adams County. The formal boundaries for the City of Quincy (see map below) encompass a land area of 15.87 sq. miles and a water area of 0.04 sq. miles. Adams County is in the Central time zone (GMT -6). The elevation is 568 feet.
The City of Quincy (GNIS ID: 2396301) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
Alternate Unofficial Names for Quincy: Bluffs, Gem City.
|Population in Households||38,125|
|Population in Familes||28,630|
|Population in Group Qrtrs||2,032|
|Median Household Income||$45,190|
|Average Household Income||$60,520|
|Per Capita Income||$25,999|
|Total Housing Units||18,894 (100%)|
|Owner Occupied HU||11,204 (59.3%)|
|Renter Occupied HU||5,758 (30.5%)|
|Vacant Housing Units||1,932 (10.2%)|
|Median Home Value||$103,098|
|Average Home Value||$138,034|
|Average Household Size||2.25|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||2.9%|
|Per Capita Income||2.72%|
The table below compares Quincy to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
|Total Population||# 45||97th|
|Population Density||# 176||87th|
|Diversity Index||# 440||68th|
|Median Household Income||# 1045||24th|
|Per Capita Income||# 837||39th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.