Oak Forest, IL Profile: Facts & Data

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Oak Forest, Illinois - Basic Facts

The City of Oak Forest had a population of 27,026 as of July 1, 2019. Oak Forest ranks in the upper quartile for Population Density and 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 Oak Forest is located at latitude 41.6028 and longitude -87.7439 in Cook County. The formal boundaries for the City of Oak Forest encompass a land area of 5.95 sq. miles and a water area of 0.05 sq. miles. Cook County is in the Central time zone (GMT -6). The elevation is 673 feet.

The City of Oak Forest (GNIS ID: 2395281) 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 Oak Forest is located within Township of Bremen, a minor civil division (MCD) of Cook County.


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  1. Oak Forest 2019 Demographic Data
  2. Growth Rates for Oak Forest (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Illinois Research Tools (Easy Tools & Current Data)
  3. Illinois Data Comparison Tool - 2019 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2019, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


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Oak Forest, IL Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX

Oak Forest, IL Housing Affordability Index is 154
State of Illinois Housing Affordability Index is 119
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.

WEALTH INDEX

Oak Forest, IL Wealth Index is 107
State of Illinois Wealth Index is 105
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.

These new demographic attributes are availiable for Neighborhoods, Cities, Counties, and ZIP Codes.

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  4. See the References & Data Sources page for more information about methodology and sources of data.
  5. See the Illinois COVID-19 Data and US COVID-19 Data for more information on the spread of the novel coronavirus.

POPULATION

Total Population 27,026 (100%)
Population in Households 26,982 (99.8%)
Population in Families 23,236 (86.0%)
Population in Group Quarters1 44 ( 0.2%)
Population Density 4,506
Diversity Index2 51
 

INCOME

Median Household Income $79,931
Average Household Income $93,592
Per Capita Income $34,325
Wealth Index4 107

HOUSING

Total Housing Units 10,652 (100%)
Owner Occupied HU 7,975 (74.9%)
Renter Occupied HU 1,944 (18.3%)
Vacant Housing Units 733 ( 6.9%)
Median Home Value $202,884
Housing Affordability Index3 154
 

HOUSEHOLDS

Total Households 9,919
Average Household Size 2.72
Family Households 7,134
Average Family Size 3
NOTES
  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 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.
  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 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.

GROWTH RATE / YEAR

2010-2019 2019-2024
Population -0.37% -0.36%
Households -0.32% -0.36%
Families -0.38% -0.4%
Median Household Income   2.12%
Per Capita Income   2.77%

Oak Forest, IL - Peer Comparisons by Rank and Percentile

The table below compares Oak Forest to the other 1,369 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2019 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 # 79 94th
Population Density # 56 96th
Diversity Index # 182 87th
Median Household Income # 213 85th
Per Capita Income # 359 74th

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

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