Clay City, IL Profile: Facts, Map & Data


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Clay City, Illinois - Basic Facts

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The Village of Clay City had a population of 951 as of July 1, 2015. Clay City 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 Clay City is located at latitude 38.6857 and longitude -88.3486 in Clay County. The formal boundaries for the Village of Clay City (see map below) encompass a land area of 1.78 sq. miles and a water area of 0 sq. miles. Clay County is in the Central time zone (GMT -6). The elevation is 433 feet.

The Village of Clay City (GNIS ID: 2397637) 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 Clay City is located within Township of Clay City, a minor civil division (MCD) of Clay County.

Beneath the boundary map are tables with Clay City population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2015.

Neighborhood Data

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Village of Clay City, IL Boundary Map

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Boundary Maps: Township of Clay City | Clay County | Illinois Counties

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Clay City, IL Data & Demographics (As of July 1, 2015)


Total Population 951
Population in Households 951
Population in Familes 739
Population in Group Qrtrs 0
Population Density1 545
Diversity Index2 4


Total Households 425
Average Household Size 2.24
Family Households 267
Average Family Size 3


Total Housing Units 481 (100%)
Owner Occupied HU 330 (68.6%)
Renter Occupied HU 95 (19.8%)
Vacant Housing Units 56 (11.6%)
Median Home Value $57,477
Average Home Value $73,258


Median Household Income $38,247
Average Household Income $47,248
Per Capita Income $21,175
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.16% -0.3%
Households 0.04% -0.19%
Families 1.11% -0.3%
Median Household Income   1.8%
Per Capita Income   2.7%
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.


Clay City, IL - Peer Comparisons by Rank and Percentile

The table below compares Clay City to the other 1,367 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2015 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 # 725 47th
Population Density1 # 1057 23rd
Diversity Index2 # 1287 6th
Median Household Income # 1193 13th
Per Capita Income # 1093 20th

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