Coffeen, IL Profile: Facts, Map & Data


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Coffeen, Illinois - Basic Facts

The City of Coffeen had a population of 680 as of July 1, 2018. Coffeen ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Coffeen is located at latitude 39.0882 and longitude -89.3898 in Montgomery County. The formal boundaries for the City of Coffeen (see map below) encompass a land area of 1.19 sq. miles and a water area of 0 sq. miles. Montgomery County is in the Central time zone (GMT -6). The elevation is 630 feet.

The City of Coffeen (GNIS ID: 2393583) 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 Coffeen is located within Township of East Fork, a minor civil division (MCD) of Montgomery County.

Beneath the boundary map are tables with Coffeen population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

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City of Coffeen, IL Boundary Map

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Boundary Maps: Township of East Fork | Montgomery County | Illinois Counties

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Coffeen, IL Data & Demographics (As of July 1, 2018)


Total Population 680
Population in Households 680
Population in Familes 550
Population in Group Qrtrs 0
Population Density2 571
Diversity Index3 4


Median Household Income $34,695
Average Household Income $52,518
Per Capita Income $21,997


Total Housing Units 320 (100%)
Owner Occupied HU 222 (69.4%)
Renter Occupied HU 63 (19.7%)
Vacant Housing Units 35 (10.9%)
Median Home Value $82,770
Average Home Value $116,704


Total Households 285
Average Household Size 2.39
Family Households 196
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population -0.09% -0.3%
Households 0.04% -0.14%
Families 0.0% -0.2%
Median Household Income   1.06%
Per Capita Income   2.27%

Coffeen, IL - Peer Comparisons by Rank and Percentile

The table below compares Coffeen 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.

Variable Description Rank Percentile
Total Population # 819 40th
Population Density # 1032 25th
Diversity Index # 1299 5th
Median Household Income # 1324 3rd
Per Capita Income # 1176 14th

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

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