Northfield Flag

Northfield

County:
Cook County
County Seat:
No
Area (mi²):
34.285
State:
Illinois

Northfield is located in Cook County, Illinois. Northfield has a 2025 population of 90,162 . Northfield is currently growing at a rate of 0.74% annually but its population has decreased by -1.22% since the most recent census, which recorded a population of 91,275 in 2020.

The average household income in Northfield is $202,501 with a poverty rate of 6.93%. The median age in Northfield is 46.9 years: 45.6 years for males, and 48.5 years for females. For every 100 females there are 91.1 males.

90.2K
Total Population
2,630
Density (mi²)
658 0.74%
Growth

Northfield Population

Northfield Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Northfield includes 71.17% White, 18.12% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White (71.17%)

Asian (18.12%)

Two or more races (6%)

Black or African American (2.28%)

Other race (2.26%)

Native American (0.16%)

Native Hawaiian or Pacific Islander (0.01%)

Race
Population
Percentage (of total)
White63,89271.17%
Asian16,26318.12%
Two or more races5,3916%
Black or African American2,0432.28%
Other race2,0322.26%
Native American1420.16%
Native Hawaiian or Pacific Islander130.01%

Northfield Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Northfield's average per capita income is $82,327. Household income levels show a median of $135,041. The poverty rate stands at 6.93%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$205,125-
Families$185,052$245,621
Households$135,041$202,501
Non Families$57,712$88,964

$82,327

Average Income

$135,041

Median Household Income

6.93%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)