Big Rock, IL Profile: Facts, Map & Data


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Big Rock, Illinois - Basic Facts

The Village of Big Rock had a population of 1,123 as of July 1, 2016. Big Rock ranks in the lower 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 Big Rock is located at latitude 41.7668 and longitude -88.5265 in Kane County. The formal boundaries for the Village of Big Rock (see map below) encompass a land area of 4.32 sq. miles and a water area of 0 sq. miles. Kane County is in the Central time zone (GMT -6). The elevation is 709 feet.

The Village of Big Rock (GNIS ID: 2398118) 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 Village of Big Rock is located within Township of Big Rock, a minor civil division (MCD) of Kane County.

Beneath the boundary map are tables with Big Rock 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

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Village of Big Rock, IL Boundary Map

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Boundary Maps: Township of Big Rock | Kane County | Illinois Counties

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


Total Population 1,123
Population in Households 1,123
Population in Familes 1,003
Population in Group Qrtrs 0
Population Density1 260
Diversity Index2 14


Total Households 404
Average Household Size 2.78
Family Households 329
Average Family Size 3


Total Housing Units 426 (100%)
Owner Occupied HU 328 (77.0%)
Renter Occupied HU 76 (17.8%)
Vacant Housing Units 22 ( 5.2%)
Median Home Value $244,624
Average Home Value $347,866


Median Household Income $87,073
Average Household Income $103,322
Per Capita Income $37,032
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.04% -0.02%
Households -0.2% -0.15%
Families -0.52% -0.24%
Median Household Income   3.21%
Per Capita Income   2.15%
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.

Big Rock, IL - Peer Comparisons by Rank and Percentile

The table below compares Big Rock 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 # 682 50th
Population Density1 # 1227 10th
Diversity Index2 # 629 54th
Median Household Income # 104 92nd
Per Capita Income # 139 90th

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

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