Olney, IL Profile: Facts, Map & Data


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Olney, Illinois - Basic Facts

The City of Olney had a population of 9,185 as of July 1, 2016.

The primary coordinate point for Olney is located at latitude 38.7281 and longitude -88.0842 in Richland County. The formal boundaries for the City of Olney (see map below) encompass a land area of 7.08 sq. miles and a water area of 0 sq. miles. Richland County is in the Central time zone (GMT -6). The elevation is 479 feet.

The City of Olney (GNIS ID: 2396060) 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 Olney is located within Township of Olney, a minor civil division (MCD) of Richland County.

Beneath the boundary map are tables with Olney 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 Olney, IL Boundary Map

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Boundary Maps: Township of Olney | Richland County | Illinois Counties

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


Total Population 9,185
Population in Households 8,821
Population in Familes 6,690
Population in Group Qrtrs 364
Population Density1 1,297
Diversity Index2 13


Total Households 3,871
Average Household Size 2.28
Family Households 2,315
Average Family Size 3


Total Housing Units 4,294 (100%)
Owner Occupied HU 2,347 (54.7%)
Renter Occupied HU 1,524 (35.5%)
Vacant Housing Units 423 ( 9.9%)
Median Home Value $83,233
Average Home Value $114,296


Median Household Income $35,919
Average Household Income $52,923
Per Capita Income $22,625
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.11% 0.05%
Households 0.09% 0.04%
Families -0.03% -0.08%
Median Household Income   0.65%
Per Capita Income   1.64%
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.

Olney, IL - Peer Comparisons by Rank and Percentile

The table below compares Olney 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 # 237 83rd
Population Density1 # 584 57th
Diversity Index2 # 668 51st
Median Household Income # 1258 8th
Per Capita Income # 998 27th

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

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