Lerna, IL Profile: Facts, Map & Data


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Lerna, Illinois - Basic Facts

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The Village of Lerna had a population of 277 as of July 1, 2017. Lerna ranks in the upper quartile for Population Density and 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 Lerna is located at latitude 39.4179 and longitude -88.2888 in Coles County. The formal boundaries for the Village of Lerna (see map below) encompass a land area of 0.12 sq. miles and a water area of 0 sq. miles. Coles County is in the Central time zone (GMT -6). The elevation is 755 feet.

The Village of Lerna (GNIS ID: 2398424) 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 Lerna is located within Township of Pleasant Grove, a minor civil division (MCD) of Coles County.

Beneath the boundary map are tables with Lerna population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Neighborhood Data

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Village of Lerna, IL Boundary Map

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Boundary Maps: Township of Pleasant Grove | Coles County | Illinois Counties

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Lerna, IL Data & Demographics (As of July 1, 2017)


Total Population 277
Daytime Population: Workers 8
Daytime Population: Residents 137
Total Daytime Population (TDP) 145
Ratio TDP/Total Population1 0.52
Population in Households 275
Population in Familes 236
Population in Group Qrtrs 2
Population Density2 2,370
Diversity Index3 8


Median Household Income $60,601
Average Household Income $96,385
Per Capita Income $39,247


Total Housing Units 128 (100%)
Owner Occupied HU 89 (69.5%)
Renter Occupied HU 17 (13.3%)
Vacant Housing Units 21 (16.4%)
Median Home Value $157,143
Average Home Value $171,023


Total Households 107
Average Household Size 2.57
Family Households 77
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 -0.44% -0.51%
Households -0.63% -0.38%
Families -1.03% -0.52%
Median Household Income   1.9%
Per Capita Income   3.29%

Lerna, IL - Peer Comparisons by Rank and Percentile

The table below compares Lerna to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2017 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 # 1113 19th
Population Density # 198 86th
Diversity Index # 1032 25th
Median Household Income # 417 70th
Per Capita Income # 134 90th

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

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