Northfield

County:: Cook County
County Seat:: No
Area (mi²):: 3.23
State:: Illinois

Northfield is a village located in Cook County, Illinois. Northfield has a 2025 population of 5,407. Northfield is currently declining at a rate of -1.24% annually and its population has decreased by -5.9% since the most recent census, which recorded a population of 5,746 in 2020.

The average household income in Northfield is $281,510 with a poverty rate of 5.22%. The median age in Northfield is 50.5 years: 49.6 years for males, and 51.1 years for females.

Demographics

The racial composition of Northfield includes 86.03% White, 8.59% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,889	86.03%
Asian	488	8.59%
Two or more races	211	3.71%
Other race	82	1.44%
Black or African American	13	0.23%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Northfield Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Northfield's average per capita income is $116,445. Household income levels show a median of $180,492. The poverty rate stands at 5.22%.

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	$250,001	-
Families	$249,500	$348,478
Households	$180,492	$281,510
Non Families	$57,054	$101,213

$116,445

Average Income

$180,492

Median Household Income

5.22%

Poverty Rate