Auburn, IL Profile: Facts, Map & Data


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Auburn, Illinois - Basic Facts

The City of Auburn had a population of 4,728 as of July 1, 2016.

The primary coordinate point for Auburn is located at latitude 39.5757 and longitude -89.7427 in Sangamon County. The formal boundaries for the City of Auburn (see map below) encompass a land area of 4.13 sq. miles and a water area of 0 sq. miles. Sangamon County is in the Central time zone (GMT -6). The elevation is 627 feet.

The City of Auburn (GNIS ID: 2394023) 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.

The City of Auburn is located within Township of Auburn, a minor civil division (MCD) of Sangamon County.

Beneath the boundary map are tables with Auburn population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

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.


City of Auburn, IL Boundary Map

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Boundary Maps: Township of Auburn | Sangamon County | Illinois Counties

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


Total Population 4,728
Population in Households 4,670
Population in Familes 3,901
Population in Group Qrtrs 58
Population Density1 1,145
Diversity Index2 10


Total Households 1,767
Average Household Size 2.64
Family Households 1,255
Average Family Size 3


Total Housing Units 1,873 (100%)
Owner Occupied HU 1,313 (70.1%)
Renter Occupied HU 454 (24.2%)
Vacant Housing Units 106 ( 5.7%)
Median Home Value $96,670
Average Home Value $116,337


Median Household Income $56,621
Average Household Income $68,541
Per Capita Income $26,229
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.18% -0.08%
Households -0.14% -0.07%
Families -0.36% -0.21%
Median Household Income   0.49%
Per Capita Income   1.57%
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.

Auburn, IL - Peer Comparisons by Rank and Percentile

The table below compares Auburn to the other 1,368 incorporated cities, towns and CDPs 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 # 350 74th
Population Density1 # 671 51st
Diversity Index2 # 849 38th
Median Household Income # 507 63rd
Per Capita Income # 626 54th

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

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