Oak Park, IL Profile: Facts & Data


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Oak Park, Illinois - Basic Facts

The Village of Oak Park had a population of 51,793 as of July 1, 2018. Oak Park 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 Park is located at latitude 41.8872 and longitude -87.7899 in Cook County. The formal boundaries for the Village of Oak Park (see map below) encompass a land area of 4.7 sq. miles and a water area of 0 sq. miles. Cook County is in the Central time zone (GMT -6). The elevation is 620 feet.

The Village of Oak Park (GNIS ID: 2399539) 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 Oak Park is located within Township of Oak Park, a minor civil division (MCD) of Cook County.

Alternate Unofficial Names for Oak Park: Harlem, Noyesville, Oak Ridge.

Jump to... (On This Page!)
  1. Oak Park 2018 Demographic Data
  2. Growth Rates for Oak Park (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 - 2018 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, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Oak Park, IL Data & Demographics (As of July 1, 2018)


Total Population 51,793
Population in Households 51,407
Population in Familes 39,436
Population in Group Qrtrs 386
Population Density2 11,020
Diversity Index3 58


Median Household Income $88,909
Average Household Income $124,638
Per Capita Income $54,925


Total Housing Units 24,838 (100%)
Owner Occupied HU 13,073 (52.6%)
Renter Occupied HU 9,637 (38.8%)
Vacant Housing Units 2,128 ( 8.6%)
Median Home Value $394,994
Average Home Value $454,035


Total Households 22,710
Average Household Size 2.26
Family Households 12,880
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population -0.02% 0.18%
Households 0.02% 0.29%
Families -0.15% 0.08%
Median Household Income   1.75%
Per Capita Income   2.08%

Oak Park, IL - Peer Comparisons by Rank and Percentile

The table below compares Oak Park to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2018 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 # 29 98th
Population Density # 6 100th
Diversity Index # 132 90th
Median Household Income # 124 91st
Per Capita Income # 40 97th

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

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