Quincy, IL 62305 ZIP Code Profile

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Columbus, IL | Quincy, IL

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ZIP Code 62305: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Quincy, IL 62305

Not Acceptable, USPS
Columbus, IL 62305

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 652
  • Single Family Addresses: 7,679
  • Multi-Family Addresses: 223
  • County: Adams County
  • Centroid: Latitude 39.93, Longitude -91.304
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


62305 ZIP Code Map

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Quincy, IL 62305 Data & Demographics (As of July 1, 2016)


Total Population 19,299
Population in Households 18,879
Population in Familes 15,785
Population in Group Qrtrs 420
Population Density1 139
Diversity Index2 13


Total Households 7,667
Average Household Size 2.46
Family Households 5,341
Average Family Size 3


Total Housing Units 8,069 (100%)
Owner Occupied HU 6,128 (75.9%)
Renter Occupied HU 1,539 (19.1%)
Vacant Housing Units 402 ( 5.0%)
Median Home Value $153,833
Average Home Value $177,125


Median Household Income $56,104
Average Household Income $76,071
Per Capita Income $30,451
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.49% 0.32%
Households 0.5% 0.33%
Families 0.26% 0.16%
Median Household Income   1.94%
Per Capita Income   1.82%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Quincy, IL 62305 - Peer Comparisons by Rank and Percentile

The table below compares 62305 to the other 1,378 ZIP Codes in Illinois by rank and percentile using July 1, 2016 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.

Variable Description Rank Percentile
Total Population # 250 82nd
Population Density1 # 550 60th
Diversity Index2 # 681 51st
Median Household Income # 558 60th
Per Capita Income # 369 73rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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