Chatham, IL Profile: Facts, Map & Data


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Chatham, Illinois - Basic Facts

The Village of Chatham is an incorporated place (Class Code P1) located in Sangamon County at latitude 39.6708 and longitude -89.6995. Sangamon County is in the Central time zone (GMT -6). The elevation is 604 feet.

The formal official name is the Village of Chatham, but most people and references simply refer to it as Chatham, Illinois.

The P1 Census Class Code for Chatham indicates a populated place that is also an incorporated place with the same name and the same census code. The Incorporated Place has a Functional Status Code "A" which identifies an active government providing primary general-purpose functions.

The formal boundaries for the Village of Chatham (see map below) encompass a land area of 6.54 sq. miles and a water area of 0 sq. miles.

Village of Chatham, IL Boundary Map


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

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Chatham, IL Data & Demographics (As of July 1, 2014)


Total Population 12,394
Population in Households 12,388
Population in Familes 10,808
Population in Group Qrtrs 6
Population Density1 2,167
Diversity Index2 19


Total Households 4,735
Average Household Size 2.62
Family Households 3,593
Average Family Size 3


Total Housing Units 4,812 (100%)
Owner Occupied HU 3,830 (79.6%)
Renter Occupied HU 906 (18.8%)
Vacant Housing Units 77 ( 1.6%)
Median Home Value $195,658
Average Home Value $215,074


Median Household Income $78,963
Average Household Income $91,668
Per Capita Income $34,755
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 1.78% 1.2%
Households 2.0% 1.22%
Families 1.98% 1.1%
Median Household Income   1.87%
Per Capita Income   2.19%
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.


Chatham, IL - Peer Comparisons by Rank and Percentile

The table below compares Chatham to the other 1,367 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2014 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 # 199 86th
Population Density1 # 240 83rd
Diversity Index2 # 476 65th
Median Household Income # 155 89th
Per Capita Income # 166 88th

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