Northfield, IL Profile: Facts, Map & Data


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Northfield, Illinois - Basic Facts

The Village of Northfield had a population of 5,541 as of July 1, 2017.

The primary coordinate point for Northfield is located at latitude 42.1026 and longitude -87.7792 in Cook County. The formal boundaries for the Village of Northfield (see map below) encompass a land area of 3.21 sq. miles and a water area of 0 sq. miles. Cook County is in the Central time zone (GMT -6). The elevation is 633 feet.

The Village of Northfield (GNIS ID: 2399527) 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 Northfield is located within Township of Northfield, a minor civil division (MCD) of Cook County.

Beneath the boundary map are tables with Northfield 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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Village of Northfield, IL Boundary Map

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Northfield, IL Data & Demographics (As of July 1, 2017)


Total Population 5,541
Daytime Population: Workers 6,642
Daytime Population: Residents 3,068
Total Daytime Population (TDP) 9,710
Ratio TDP/Total Population1 1.75
Population in Households 5,504
Population in Familes 4,816
Population in Group Qrtrs 37
Population Density2 1,724
Diversity Index3 25


Median Household Income $125,204
Average Household Income $188,821
Per Capita Income $75,127


Total Housing Units 2,390 (100%)
Owner Occupied HU 2,027 (84.8%)
Renter Occupied HU 217 ( 9.1%)
Vacant Housing Units 146 ( 6.1%)
Median Home Value $722,760
Average Home Value $783,732


Total Households 2,244
Average Household Size 2.45
Family Households 1,622
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 0.31% 0.27%
Households 0.34% 0.25%
Families 0.74% 0.2%
Median Household Income   0.71%
Per Capita Income   1.48%

Northfield, IL - Peer Comparisons by Rank and Percentile

The table below compares Northfield 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 # 320 77th
Population Density # 377 73rd
Diversity Index # 412 70th
Median Household Income # 29 98th
Per Capita Income # 15 99th

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

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