Northbrook, IL Profile: Facts & Data

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Northbrook, Illinois - Basic Facts

The Village of Northbrook had a population of 35,247 as of July 1, 2023. Northbrook 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 Northbrook is located at latitude 42.1275 and longitude -87.829 in Cook County. The formal boundaries for the Village of Northbrook encompass a land area of 13.19 sq. miles and a water area of 0.06 sq. miles. Cook County is in the Central time zone (GMT -6).

The Village of Northbrook 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 Northbrook is located within Township of Northfield, a minor civil division (MCD) of Cook County.


Jump to... (On This Page!)
  1. Northbrook 2023 Demographic Data
  2. Growth Rates for Northbrook (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 - 2023 Demographics
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Northbrook, IL Data & Demographics (As of July 1, 2023)

POPULATION

Total Population 35,247 (100%)
Population in Households 34,635 (98.3%)
Population in Families 30,811 (87.4%)
Population in Group Quarters1 612 ( 1.7%)
Population Density 2,662
Diversity Index2 43
 
 

INCOME

Median Household Income $136,048
Average Household Income $209,416
% of Income for Mortgage4 25%
Per Capita Income $80,433
Wealth Index5 285
Socioeconomic Status Index6 High (68.0)
 

HOUSING

Total HU (Housing Units) 14,462 (100%)
Owner Occupied HU 11,364 (78.6%)
Renter Occupied HU 2,168 (15.0%)
Vacant Housing Units 930 ( 6.4%)
Median Home Value $564,369
Average Home Value $622,725
Housing Affordability Index3 87
 

HOUSEHOLDS

Total Households 13,532
Average Household Size 2.56
Family Households 10,083
Average Family Size 3.00
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 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.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

2020-2023 2023-2028
Population 0.01% -0.24%
Households 0.48% 0.02%
Families   0.04%
Median Household Income   2.47%
Per Capita Income   2.43%
Owner Occupied HU   0.22%

Northbrook, IL - Peer Comparisons by Rank and Percentile

The table below compares Northbrook to the other 1,464 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2023 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 # 52 97th
Population Density # 159 89th
Median Household Income # 40 97th
Housing Affordability Index # 241 16th
Per Capita Income # 26 98th
Diversity Index # 349 76th

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

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