Saint Elmo, IL Profile: Facts, Map & Data


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Saint Elmo, Illinois - Basic Facts

The City of Saint Elmo had a population of 1,408 as of July 1, 2016. Saint Elmo ranks in the lower quartile for 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 Saint Elmo is located at latitude 39.0237 and longitude -88.8509 in Fayette County. The formal boundaries for the City of Saint Elmo (see map below) encompass a land area of 1.19 sq. miles and a water area of 0.02 sq. miles. Fayette County is in the Central time zone (GMT -6). The elevation is 620 feet.

The City of Saint Elmo (GNIS ID: 2396486) 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 Saint Elmo is located within Township of Avena, a minor civil division (MCD) of Fayette County.

Beneath the boundary map are tables with Saint Elmo 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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City of Saint Elmo, IL Boundary Map

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Boundary Maps: Township of Avena | Fayette County | Illinois Counties

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


Total Population 1,408
Population in Households 1,374
Population in Familes 1,119
Population in Group Qrtrs 34
Population Density1 1,184
Diversity Index2 6


Total Households 553
Average Household Size 2.48
Family Households 380
Average Family Size 3


Total Housing Units 616 (100%)
Owner Occupied HU 425 (69.0%)
Renter Occupied HU 128 (20.8%)
Vacant Housing Units 63 (10.2%)
Median Home Value $71,186
Average Home Value $82,688


Median Household Income $32,759
Average Household Income $39,961
Per Capita Income $15,989
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.2% -0.17%
Households 0.06% -0.04%
Families 0.21% -0.11%
Median Household Income   -0.16%
Per Capita Income   1.15%
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.

Saint Elmo, IL - Peer Comparisons by Rank and Percentile

The table below compares Saint Elmo 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 # 607 56th
Population Density1 # 647 53rd
Diversity Index2 # 1180 13th
Median Household Income # 1320 4th
Per Capita Income # 1340 2nd

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

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