Oak Run, IL Profile: Facts & Data


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Oak Run, Illinois - Basic Facts

The Oak Run Census Designated Place had a population of 593 as of July 1, 2020. Oak Run ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Oak Run is located at latitude 40.9634 and longitude -90.1451 in Knox County. The formal boundaries for the Oak Run Census Designated Place encompass a land area of 3.54 sq. miles and a water area of 0.87 sq. miles. Knox County is in the Central time zone (GMT -6). The elevation is 735 feet.

The Oak Run Census Designated Place (GNIS ID: 2628556) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Oak Run Census Designated Place is located within Township of Persifer, a minor civil division (MCD) of Knox County.


Oak Run, IL Data & Demographics (As of July 1, 2020)


Total Population 593 (100%)
Population in Households 593 (100.0%)
Population in Families 486 (82.0%)
Population in Group Quarters1 0
Population Density 168
Diversity Index2 11


Median Household Income $72,984
Average Household Income $99,211
% of Income for Mortgage4 13%
Per Capita Income $47,746
Wealth Index5 153


Total HU (Housing Units) 720 (100%)
Owner Occupied HU 263 (36.5%)
Renter Occupied HU 23 ( 3.2%)
Vacant Housing Units 434 (60.3%)
Median Home Value $224,074
Average Home Value $260,592
Housing Affordability Index3 170


Total Households 286
Average Household Size 2.07
Family Households 200
Average Family Size 2
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population 0.79% 0.07%
Households 0.9% 0.14%
Families 0.61% 0.0%
Median Household Income   1.41%
Per Capita Income   1.86%
Owner Occupied HU   0.15%


Oak Run, IL - Peer Comparisons by Rank and Percentile

The table below compares Oak Run to the other 1,369 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2020 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 # 871 36th
Population Density # 1303 5th
Median Household Income # 325 76th
Housing Affordability Index # 305 22nd
Per Capita Income # 96 93rd
Diversity Index # 856 37th

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

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