Olney, IL Profile: Facts, Map & Data


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Olney, Illinois - Basic Facts

The City of Olney had a population of 9,202 as of July 1, 2017.

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, 2017.

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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, 2017)


Total Population 9,202
Daytime Population: Workers 5,858
Daytime Population: Residents 5,265
Total Daytime Population (TDP) 11,123
Ratio TDP/Total Population1 1.21
Population in Households 8,838
Population in Familes 6,704
Population in Group Qrtrs 364
Population Density2 1,300
Diversity Index3 14


Median Household Income $36,620
Average Household Income $54,996
Per Capita Income $23,503


Total Housing Units 4,294 (100%)
Owner Occupied HU 2,338 (54.4%)
Renter Occupied HU 1,541 (35.9%)
Vacant Housing Units 415 ( 9.7%)
Median Home Value $87,908
Average Home Value $120,815


Total Households 3,879
Average Household Size 2.28
Family Households 2,313
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 0.12% -0.01%
Households 0.11% -0.02%
Families -0.04% -0.13%
Median Household Income   1.49%
Per Capita Income   2.73%

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, 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 # 236 83rd
Population Density # 576 58th
Diversity Index # 648 53rd
Median Household Income # 1286 6th
Per Capita Income # 1010 26th

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

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